Vitamins And Minerals Quiz

Reviewed by Zohra Sattar Waxali
Zohra Sattar Waxali, PhD (Chemistry) |
Chemistry
Review Board Member
Dr. Zohra Sattar Waxali earned her doctorate in chemistry and biochemistry from Northwestern University, specializing in the metallomes of cardiac cells and stem cells, and their impact on biological function. Her research encompasses the development of arsenoplatin chemotherapeutics, stapled peptide estrogen receptor inhibitors, and antimicrobial natural products.
 , PhD (Chemistry)
By Gemstonejas
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Gemstonejas
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  • 1/98 Questions

    Vitamin D is also known as the sunshine vitamin.

    • True
    • False
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About This Quiz


Welcome to the Vitamins and Minerals Quiz! Test your knowledge about essential nutrients crucial for overall health and well-being. Explore questions covering a wide range of vitamins and minerals, their functions, dietary sources, and their importance in maintaining optimal health.
This quiz offers a fun and informative way to expand your understanding. Challenge yourself and discover how well you See moreknow these essential components that play key roles in supporting various bodily functions. Let's dive into the world of vitamins and minerals together!

Vitamins And Minerals Quiz - Quiz

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  • 2. 

    Rickets in children and Osteomalacia in adult is a result in the deficiency of vitamin D

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Rickets in children and Osteomalacia in adults are both conditions that result from a deficiency of vitamin D. Rickets is a condition that affects the development of bones in children, causing them to become weak and soft. Osteomalacia is a condition that affects adults, causing their bones to become weak and brittle. Both conditions can be prevented or treated by ensuring an adequate intake of vitamin D, which is essential for the absorption of calcium and phosphorus, important minerals for bone health. Therefore, the statement "Rickets in children and Osteomalacia in adults is a result of vitamin D deficiency" is true.

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  • 3. 

    B-complex vitamins play key roles as coenzymes during CHO, fat, and protein catabolism.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    B-complex vitamins are essential for the metabolism of carbohydrates, fats, and proteins. They act as coenzymes, which means they help enzymes carry out chemical reactions that break down these macronutrients for energy. Without B-complex vitamins, the body would struggle to efficiently convert these nutrients into usable forms. Therefore, it is true that B-complex vitamins play key roles as coenzymes during CHO, fat, and protein catabolism.

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  • 4. 

    Vitamins A, C, E, and beta-carotene serve important protective functions as antioxidants.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Vitamins A, C, E, and beta-carotene are known to have antioxidant properties, meaning they can help protect cells from damage caused by harmful molecules called free radicals. Free radicals can cause oxidative stress, which has been linked to various health issues, including chronic diseases. Therefore, it is true that these vitamins serve important protective functions as antioxidants.

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  • 5. 

     T3 (triiodothyronine) and  T4 (thyroxine) are both thyroid hormones

    • True

    • False

    Correct Answer
    A. True
    Explanation
    T3 (triiodothyronine) and T4 (thyroxine) are indeed both thyroid hormones. These hormones are produced by the thyroid gland and play a crucial role in regulating metabolism, growth, and development in the body. T3 is the more biologically active form, while T4 is converted into T3 in various tissues. Both hormones are essential for maintaining proper functioning of the body's organs and systems.

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  • 6. 

    Phosphorus combines with calcium to form hydroxyapatite and calcium phosphate to provide rigidity (hardness) to bones and teeth. Phosphorus combines with lipids to form phospholipids to provide integrity to cell membranes. Phosphorus can activate or deactivate enzymes through phosphorylation.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Phosphorus is indeed involved in all three processes mentioned in the question. It combines with calcium to form hydroxyapatite and calcium phosphate, which are essential for the rigidity and hardness of bones and teeth. It also combines with lipids to form phospholipids, which are a major component of cell membranes and provide integrity to them. Additionally, phosphorus can activate or deactivate enzymes through phosphorylation, a process in which a phosphate group is added to an enzyme to regulate its activity. Therefore, the statement is true.

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  • 7. 

    The role of coenzyme is for activation of enzymes

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Coenzymes are organic molecules that assist enzymes in their catalytic activities. They work by binding to enzymes and helping them carry out their functions more efficiently. Coenzymes often act as carriers of specific atoms or functional groups, which are necessary for the enzyme to perform its catalytic role. Therefore, the statement that the role of coenzymes is for the activation of enzymes is true.

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  • 8. 

     Electrolyte Establish the proper electrical gradient across cell membranes.Modulate fluid exchange within the body's fluid compartments.Regulate the acid and base qualities of body fluids

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Electrolytes play a crucial role in the body by establishing the proper electrical gradient across cell membranes. This allows for the transmission of nerve impulses and the functioning of muscles. Additionally, electrolytes help to modulate fluid exchange within the body's fluid compartments, ensuring proper hydration and maintaining the balance of fluids. They also regulate the acid and base qualities of body fluids, helping to maintain a stable pH level. Therefore, the statement that electrolytes establish the proper electrical gradient across cell membranes, modulate fluid exchange within the body's fluid compartments, and regulate the acid and base qualities of body fluids is true.

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  • 9. 

    Excess fat soluble vitamins intake has a high potential for toxicity

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Excess intake of fat-soluble vitamins can lead to toxicity because these vitamins are stored in the body's fat tissues and can accumulate to harmful levels. Unlike water-soluble vitamins that are easily excreted in urine, fat-soluble vitamins (A, D, E, and K) are not easily eliminated from the body. Therefore, consuming excessive amounts of these vitamins through supplements or fortified foods can result in a buildup of toxic levels, causing adverse effects on health. It is important to consume these vitamins in moderation and consult a healthcare professional for proper dosage.

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  • 10. 

    Chloride + hydrogen  → hydrochloric acid (help to kill bacteria in the stomach)

    • True

    • False

    Correct Answer
    A. True
    Explanation
    This statement is true because when chloride combines with hydrogen, it forms hydrochloric acid. Hydrochloric acid is a strong acid that is naturally produced in the stomach and helps to kill bacteria that may be present in the food we consume. It plays a crucial role in the digestive process by breaking down food and aiding in the absorption of nutrients.

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  • 11. 

    Zinc is a Cofactor of many enzymes in energy metabolism, functions in Protein synthesis, and Plays a role in wound healing, which enhance immune function

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Zinc is indeed a cofactor of many enzymes involved in energy metabolism. It plays a crucial role in protein synthesis, which is essential for the proper functioning of the immune system. Additionally, zinc is known to aid in wound healing, further supporting immune function. Therefore, the statement is true.

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  • 12. 

    Some of carotenoids  (not vitamins; from most colorful fruits and vegetables) can be converted to vitamin A

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Carotenoids, which are found in colorful fruits and vegetables, can indeed be converted into vitamin A. This conversion occurs in the body and is an important process for obtaining vitamin A. Therefore, the statement "Some of carotenoids can be converted to vitamin A" is true.

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  • 13. 

    Regular exercise training can increase the body’s natural antioxidant defense mechanisms and decrease free radicals

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Regular exercise training can increase the body's natural antioxidant defense mechanisms and decrease free radicals. This is because exercise increases the production of antioxidants in the body, which help to neutralize and eliminate free radicals. Free radicals are unstable molecules that can cause damage to cells and contribute to the development of various diseases. By increasing antioxidant levels, exercise can help to reduce the harmful effects of free radicals and improve overall health and well-being. Therefore, the statement that regular exercise training can increase the body's natural antioxidant defense mechanisms and decrease free radicals is true.

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  • 14. 

    Adequate calcium intake and regular weight-bearing exercise or resistance training help prevent bone loss at any age.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Regular weight-bearing exercise and resistance training help to strengthen bones and prevent bone loss. Adequate calcium intake is also important for maintaining bone health. Therefore, it is true that these two factors, when combined, can help prevent bone loss at any age.

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  • 15. 

    –Changes in pH reduces enzyme activity

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Changes in pH can indeed reduce enzyme activity. Enzymes have an optimal pH range in which they function most effectively. Any deviation from this range can disrupt the enzyme's structure and affect its ability to catalyze reactions. If the pH becomes too acidic or too alkaline, it can denature the enzyme, causing it to lose its shape and function. Therefore, changes in pH can definitely decrease enzyme activity.

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  • 16. 

    In normal condition, our body cells produce many antioxidant enzymes to help neutralize free radicals and prevent cellular (DNA), lipids, protein , and other molecule damage.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Our body cells produce antioxidant enzymes to neutralize free radicals and prevent damage to cellular components such as DNA, lipids, proteins, and other molecules. This is true because free radicals can cause oxidative stress and lead to various health problems. Antioxidants help maintain the balance by scavenging these free radicals and reducing their harmful effects.

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  • 17. 

    One of carotenoid, beta-carotene, is a powerful antioxidant to  interfere with free radical activity

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Beta-carotene is a type of carotenoid that acts as a powerful antioxidant. Antioxidants help to neutralize harmful free radicals in the body, which are unstable molecules that can damage cells and contribute to the development of chronic diseases. Beta-carotene specifically has been shown to have antioxidant properties and can help to reduce oxidative stress caused by free radicals. Therefore, it is correct to say that beta-carotene is a powerful antioxidant that can interfere with free radical activity.

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  • 18. 

    Which vitamin is essential for blood clotting

    • A

    • D

    • E

    • K

    Correct Answer
    A. K
    Explanation
    Vitamin K is essential for blood clotting. It plays a crucial role in the production of certain proteins that are involved in the blood clotting process. Without sufficient levels of vitamin K, the blood may not be able to clot properly, leading to excessive bleeding. Vitamin K is also important for maintaining healthy bones and preventing calcification of blood vessels.

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  • 19. 

    (1)Calcium (2)Phosphorus (3)Magnesium (4)Sodium (5)Chloride (6)Potassium (7)Sulfur Are all major minerals

    • True

    • False

    Correct Answer
    A. True
    Explanation
    All of the options listed (calcium, phosphorus, magnesium, sodium, chloride, potassium, and sulfur) are considered major minerals. Major minerals are essential nutrients that the body needs in relatively large amounts for proper functioning. They play important roles in various bodily processes, such as maintaining bone health, regulating fluid balance, supporting nerve function, and facilitating muscle contractions. Therefore, the given statement is true.

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  • 20. 

    Actions of T4 and T3: (1) high metabolic rate (2) high O2 consumption (3) high heat production (4) high Necessary for CNS development (5) high metabolic reactions: protein and lipid synthesis. (6) high activity of many hormones, especially catecholamines. (7) high needed for normal GH function

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The actions of T4 and T3 include high metabolic rate, high O2 consumption, high heat production, high necessary for CNS development, high metabolic reactions: protein and lipid synthesis, high activity of many hormones, especially catecholamines, and high needed for normal GH function.

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  • 21. 

    (1)Iron (2) Zinc (3)Chromium (4)Fluoride (5)Copper (6)Manganese (7)Iodine (8)Selenium    are all trace minerals

    • True

    • False

    Correct Answer
    A. True
    Explanation
    All the given options are trace minerals. A trace mineral is a mineral that is required by the body in very small amounts, usually less than 100 milligrams per day. These minerals play important roles in various bodily functions such as metabolism, growth, and immune function. Iron, Zinc, Chromium, Fluoride, Copper, Manganese, Iodine, and Selenium are all essential trace minerals that are necessary for maintaining good health. Therefore, the statement "all trace minerals" is true.

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  • 22. 

    Ascorbic Acid is most commonly known as:

    Correct Answer
    vitamin c
    Explanation
    Ascorbic acid is commonly known as vitamin C. It is an essential nutrient that acts as an antioxidant, helping to protect cells from damage caused by free radicals. It is also important for the growth, development, and repair of body tissues, as well as the synthesis of collagen, a protein that helps heal wounds. Vitamin C is found in many fruits and vegetables, particularly citrus fruits, strawberries, kiwi, and bell peppers. It plays a crucial role in supporting the immune system and promoting overall health.

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  • 23. 

    Vitamin C, A, D, E, K and chloine are all water soluble vitamins

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The statement is false because vitamin D, E, and K are actually fat-soluble vitamins, not water-soluble. Water-soluble vitamins, such as vitamin C and choline, dissolve in water and are not stored in the body. On the other hand, fat-soluble vitamins are stored in the body's fatty tissues and liver.

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  • 24. 

    Trabecular bone is more susceptible to calcium loss than the more dense compact bone.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Trabecular bone refers to the spongy inner layer of bone, while compact bone is the more dense outer layer. Trabecular bone has a higher surface area compared to compact bone, which makes it more susceptible to calcium loss. Calcium is an essential mineral for bone health, and when calcium levels decrease, the bones can become weaker and more prone to fractures. Therefore, trabecular bone is more likely to experience calcium loss and subsequent bone deterioration compared to compact bone.

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  • 25. 

    B1 vitamins is

    • Riboflavin

    • Niacin

    • Biotin

    • Thiamin

    Correct Answer
    A. Thiamin
    Explanation
    Thiamin is the correct answer because it is one of the B1 vitamins. B1 vitamins are a group of water-soluble vitamins that play a crucial role in energy metabolism and the functioning of the nervous system. Thiamin, also known as vitamin B1, helps convert food into energy and is essential for the proper functioning of the heart, muscles, and nervous system. It is commonly found in foods such as whole grains, legumes, nuts, and pork.

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  • 26. 

    Vitamin B2 is also known as

    • Riboflavin

    • Biotin

    • Folic acid

    • Thiamin

    Correct Answer
    A. Riboflavin
    Explanation
    Vitamin B2 is also known as riboflavin.

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  • 27. 

    Vitamin B9 is

    • Folic acid

    • Thiamin

    • Niacin

    • Riboflavin

    Correct Answer
    A. Folic acid
    Explanation
    Vitamin B9 is folic acid, which is a water-soluble B vitamin. It plays a crucial role in the synthesis and repair of DNA, as well as in cell division and growth. Folic acid is important for the development of red blood cells, prevention of certain birth defects, and maintenance of brain function. It can be found naturally in foods such as leafy green vegetables, citrus fruits, and beans, or taken as a supplement.

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  • 28. 

    Small rise in body temperature increases enzyme activity

    • True

    • False

    Correct Answer
    A. True
    Explanation
    A small rise in body temperature can increase enzyme activity because enzymes are proteins that function optimally within a specific temperature range. As the temperature increases, the molecules move faster and collide more frequently, allowing the enzymes to catalyze reactions more efficiently. However, it is important to note that if the temperature rises too high, the enzymes can denature and lose their function. Therefore, a small rise in body temperature can enhance enzyme activity, but excessive heat can be detrimental.

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  • 29. 

    Vitamin B3 is

    • Pyridoxine

    • Folic acid

    • Niacin

    • Cobalamin

    Correct Answer
    A. Niacin
    Explanation
    Niacin is a form of vitamin B3. It plays a vital role in converting food into energy and helps maintain the health of the nervous system, skin, and digestive system. Niacin also helps lower cholesterol levels and can be found in various foods such as meat, fish, nuts, and grains. It is an essential nutrient for overall health and well-being.

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  • 30. 

    An “anti-infection vitamin” is the maintenance of epithelial tissues (membrane) in preventing infection

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The statement suggests that the "anti-infection vitamin" plays a role in maintaining epithelial tissues and preventing infection. This implies that the presence of this vitamin helps to strengthen the body's defense against infections. Therefore, the statement is true.

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  • 31. 

    Water soluble vitamins in excess have a low potential for toxicity

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Water-soluble vitamins, such as vitamin C and the B vitamins, are easily absorbed and excreted by the body. Unlike fat-soluble vitamins, they are not stored in large amounts in the body and any excess is typically eliminated through urine. This means that consuming excessive amounts of water-soluble vitamins is unlikely to lead to toxicity. Therefore, the statement that water-soluble vitamins in excess have a low potential for toxicity is true.

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  • 32. 

    If water-soluble vitamins in the diet regularly contain less than 50% of the recommended amount of the daily recommended intake, then marginal deficiencies could develop within about four weeks.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    If the water-soluble vitamin in the diet regularly contains less than 50% of the recommended amount, it is likely that marginal deficiencies could develop within about four weeks. Water-soluble vitamins are not stored in the body for long periods of time, so a consistent lack of intake can lead to deficiencies relatively quickly. Therefore, it is true that marginal deficiencies could develop within about four weeks if the water-soluble vitamin intake is consistently below 50% of the recommended amount.

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  • 33. 

    Vitamin B6 is

    • Thiamin

    • Pyridoxine

    • Cobalamin

    • Riboflavin

    Correct Answer
    A. Pyridoxine
    Explanation
    Pyridoxine is a form of vitamin B6. It is essential for the metabolism of proteins, carbohydrates, and fats in the body. It plays a crucial role in the production of neurotransmitters, such as serotonin and dopamine, which are important for mood regulation. Pyridoxine also supports the immune system, helps in the formation of red blood cells, and promotes healthy brain development. Thiamin, cobalamin, and riboflavin are different forms of B vitamins, but they are not synonymous with vitamin B6.

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  • 34. 

    Fat soluble vitamins can be taken in excess without medical supervision

    • True

    • False

    Correct Answer
    A. False
    Explanation
    False. Fat-soluble vitamins, such as vitamins A, D, E, and K, can accumulate in the body's fat stores and liver when taken in excess. Unlike water-soluble vitamins that are excreted in urine when consumed excessively, fat-soluble vitamins can reach toxic levels if taken in large amounts over extended periods without medical supervision. Therefore, it's important to follow recommended dosages and consult with a healthcare provider before taking high doses of fat-soluble vitamins.

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  • 35. 

    Major minerals have a daily requirement of more than 100 mg.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Major minerals are essential nutrients that the body needs in larger quantities, typically more than 100 mg per day. These minerals include calcium, phosphorus, magnesium, sodium, potassium, and chloride. They play important roles in various bodily functions such as maintaining bone health, regulating fluid balance, and supporting nerve and muscle function. Therefore, it is true that major minerals are required in higher amounts, exceeding 100 mg daily.

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  • 36. 

     which fat soluble vitamin Forms visual purple for night vision (visual pigment).Maintains epithelial tissue in skin and mucous membranes.Promotes bone formation

    • K

    • D

    • A

    • E

    Correct Answer
    A. A
    Explanation
    Vitamin A is the correct answer because it is a fat-soluble vitamin that is responsible for forming visual purple, which is necessary for night vision. It also helps maintain the health of epithelial tissue in the skin and mucous membranes, and promotes bone formation.

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  • 37. 

     Vitamin B3 Functions as coenzyme involved in energy production from CHO and Affect fat metabolism by blocking free acid release from adipose tissue to increase CHO use

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Vitamin B3, also known as niacin, functions as a coenzyme involved in energy production from carbohydrates. It helps in the breakdown of carbohydrates to produce energy. Additionally, it affects fat metabolism by blocking the release of free fatty acids from adipose tissue, which in turn increases the utilization of carbohydrates for energy. Therefore, the statement is true.

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  • 38. 

     vitamin B7 can Functions as coenzyme in the metabolism of CHO, fats, and protein

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Vitamin B7, also known as biotin, does indeed function as a coenzyme in the metabolism of carbohydrates, fats, and proteins. Coenzymes are molecules that assist enzymes in carrying out their functions, and in the case of biotin, it helps enzymes break down and utilize these macronutrients for energy production and other essential processes in the body. Hence, the statement is true.

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  • 39. 

     what trace mineral function include: Formation of Hemoglobin and myoglobin, Forms some enzymes for energy metabolisms and is Important for immune functionBrain development 

    Correct Answer
    iron
    iron(Fe)
    Fe
    Explanation
    Iron is a trace mineral that plays several important functions in the body. It is involved in the formation of hemoglobin and myoglobin, which are proteins responsible for carrying oxygen in the blood and muscles respectively. Iron also forms part of various enzymes that are essential for energy metabolism. Additionally, iron is important for immune function, as it helps in the production of white blood cells that fight off infections. Lastly, iron is crucial for brain development, as it is needed for the synthesis of neurotransmitters and myelin, which are vital for proper brain function.

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  • 40. 

    Which vitamin promotes bone and tooth formation

    • B6

    • C

    • B9

    • D

    Correct Answer
    A. D
    Explanation
    Vitamin D promotes bone and tooth formation. It helps the body absorb calcium and phosphorus, which are essential for the development and maintenance of strong bones and teeth. Vitamin D also plays a role in regulating calcium levels in the blood and supporting overall bone health.

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  • 41. 

    Excessive vitamin E can affect vitamin K’s blood-clotting functions 

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Excessive intake of vitamin E can indeed interfere with the blood-clotting functions of vitamin K. Vitamin K is essential for the production of certain proteins involved in blood clotting, and vitamin E can hinder this process by inhibiting the activation of vitamin K-dependent clotting factors. This can potentially lead to an increased risk of bleeding and difficulty in blood clotting. Therefore, the statement "Excessive vitamin E can affect vitamin K's blood-clotting functions" is true.

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  • 42. 

    Excess water-soluble vitamins are excreted through the

    Correct Answer
    urine
    Explanation
    Excess water-soluble vitamins are excreted through urine because these vitamins are not stored in the body and any excess amount is eliminated through the kidneys. Water-soluble vitamins, such as vitamin C and the B vitamins, dissolve in water and are easily excreted. Unlike fat-soluble vitamins, which are stored in the body's fatty tissues, water-soluble vitamins are not stored and any excess is removed from the body through urine. This is why it is important to consume these vitamins regularly as they cannot be stored for future use.

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  • 43. 

     Magnesium RDA for men are 400-420 ug and 310-320 ug for women.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The statement is true because the recommended daily allowance (RDA) of magnesium for men is indeed 400-420 ug, while for women, it is 310-320 ug. This means that men generally require a slightly higher amount of magnesium compared to women.

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  • 44. 

    Which are minerals that have electrically charged particles?

    • Sodium

    • Potassium

    • Chloride

    • Calcium

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    All of the minerals listed - sodium, potassium, chloride, and calcium - have electrical charged particles. Sodium and potassium are both positively charged ions, while chloride is a negatively charged ion. Calcium can also form positively charged ions. Therefore, all of these minerals have electrical charged particles.

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  • 45. 

    Which trace mineral is Essential for synthesis of thyroid hormone

    Correct Answer
    Iodine
    Explanation
    Iodine is an essential trace mineral that is required for the synthesis of thyroid hormone. The thyroid gland uses iodine to produce hormones that regulate metabolism, growth, and development. Without adequate levels of iodine, the thyroid gland cannot produce enough thyroid hormone, leading to a condition called iodine deficiency. This can result in various health problems, including goiter, hypothyroidism, and impaired cognitive function. Therefore, iodine is crucial for the proper functioning of the thyroid gland and the synthesis of thyroid hormone.

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  • 46. 

    Vitamin B5 is also known as

    • Biotin

    • Folic acid

    • Cobalamin

    • Pantothenic acid

    Correct Answer
    A. Pantothenic acid
    Explanation
    Vitamin B5 is also known as pantothenic acid. Biotin is a different vitamin, also known as vitamin B7. Folic acid is another vitamin, known as vitamin B9. Cobalamin is not a known name for any vitamin. Therefore, the correct answer is pantothenic acid.

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  • 47. 

    Vitamin B12 is known as

    • Folic acid

    • Thiamin

    • Cobalamin

    • Pyridoxine

    Correct Answer
    A. Cobalamin
    Explanation
    Vitamin B12 is known as cobalamin because cobalamin is the chemical compound that makes up this vitamin. Cobalamin is essential for the formation of red blood cells and the proper functioning of the nervous system. It is primarily found in animal-based foods and is necessary for maintaining good health.

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  • 48. 

    Coenzymes consist of two parts: one part is a protein molecule, and the second part is a coenzyme.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Coenzymes are organic molecules that assist enzymes in carrying out various biochemical reactions. They consist of two parts: a protein molecule called an apoenzyme and a non-protein molecule called a coenzyme. The apoenzyme provides the catalytic activity while the coenzyme acts as a cofactor, helping the enzyme function properly. Therefore, the statement that coenzymes consist of two parts, a protein molecule, and a coenzyme, is true.

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  • 49. 

    Which three vitamins are also known as the antioxidant vitamins?

    • C, D, K

    • A, D, C

    • B1, B5, B9

    • A, C, E

    Correct Answer
    A. A, C, E
    Explanation
    Vitamins A, C, and E are known as antioxidant vitamins. Antioxidants help protect the body from damage caused by harmful molecules called free radicals. Vitamin A helps maintain healthy skin and vision, while vitamin C is essential for immune function and collagen production. Vitamin E is a powerful antioxidant that protects cells from oxidative stress. These three vitamins play important roles in maintaining overall health and protecting the body against oxidative damage.

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Zohra Sattar Waxali |PhD (Chemistry) |
Chemistry
Dr. Zohra Sattar Waxali earned her doctorate in chemistry and biochemistry from Northwestern University, specializing in the metallomes of cardiac cells and stem cells, and their impact on biological function. Her research encompasses the development of arsenoplatin chemotherapeutics, stapled peptide estrogen receptor inhibitors, and antimicrobial natural products.

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  • May 28, 2025
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    Expert Reviewed by
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  • Oct 12, 2011
    Quiz Created by
    Gemstonejas

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