A Random Science Quiz For All The Science Enthusiasts Out There!

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| By Catherine Halcomb
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Catherine Halcomb
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Quizzes Created: 1453 | Total Attempts: 5,796,832
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A Random Science Quiz For All The Science Enthusiasts Out There! - Quiz

This is a random science quiz for all the science enthusiasts out there! The questions range from all different scientific topics. Answer each question carefully and you will get your result at the end of the quiz. Share the quiz with all your friends so you all can find out who knows the most!


Questions and Answers
  • 1. 

    The failure of the kidney is called.....

    • A.

      ESRD

    • B.

      MSRD

    • C.

      ASRD

    • D.

      KSRD

    Correct Answer
    A. ESRD
    Explanation
    ESRD stands for End-Stage Renal Disease, which refers to the final stage of kidney disease where the kidneys are no longer able to function properly. This condition occurs when the kidneys have lost about 85-90% of their function, leading to a significant decline in their ability to filter waste products and excess fluid from the blood. ESRD requires treatment through dialysis or kidney transplantation in order to sustain life.

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  • 2. 

    Plants secrete gums to...

    • A.

      To stick the insects

    • B.

      To excrete wastes

    • C.

      To expel the alkaloids

    • D.

      To heal the damaged parts of the plants

    Correct Answer
    D. To heal the damaged parts of the plants
    Explanation
    Plants secrete gums to heal the damaged parts of the plants. Gums act as a protective barrier that seals off wounds and prevents further damage or infection. They help in the process of tissue repair and regeneration, allowing the plant to recover from injuries or external stressors. This secretion of gums is a defense mechanism employed by plants to ensure their survival and maintain their overall health and integrity.

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  • 3. 

    Resins:___; gums:Adhesives

    • A.

      Tannins

    • B.

      Medicines

    • C.

      Ropes

    • D.

      Varnish

    Correct Answer
    A. Tannins
    Explanation
    Tannins are a type of organic compound commonly found in plants, particularly in bark, leaves, and fruits. They have astringent properties and are often used in the production of dyes, tanning leather, and making ink. Tannins are also used in the production of adhesives, particularly in the form of resins. Therefore, tannins can be considered as a type of resin, which is why the correct answer is "Tannins".

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  • 4. 

    These are deep brown coloured Carbon compounds, which are commercially very useful.......

    • A.

      Resins

    • B.

      Gums

    • C.

      Tannins

    • D.

      Alkaloids

    Correct Answer
    C. Tannins
    Explanation
    Tannins are deep brown coloured carbon compounds that have significant commercial value. They are commonly found in plants and have various applications such as in the production of leather, dyes, and adhesives. Tannins are also used in the manufacturing of wines and in the preservation of wood. Due to their unique properties and versatility, tannins are highly sought after in various industries, making them commercially valuable.

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  • 5. 

    Concentrated urine is passed out because of the secretion of this hormone

    • A.

      Thyroxine

    • B.

      Vasopressin 

    • C.

      Insulin

    • D.

      Pitutary

    Correct Answer
    B. Vasopressin 
    Explanation
    Vasopressin is the correct answer because it is a hormone that regulates the body's water balance and urine concentration. It is produced in the hypothalamus and then released by the pituitary gland. Vasopressin acts on the kidneys to increase the reabsorption of water, which leads to the production of concentrated urine.

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  • 6. 

    Annelida :Nephridia,Mollusca:  .........

    • A.

      Kidneys

    • B.

      Flame cells 

    • C.

      Greeen gk\lands 

    • D.

      Meta nephridia

    Correct Answer
    D. Meta nephridia
    Explanation
    Annelida have nephridia, which are excretory organs that remove metabolic waste from the body. Mollusca, on the other hand, have meta nephridia, which are similar excretory structures. Therefore, the correct answer is meta nephridia.

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  • 7. 

    Which of the following organisms take the food by parasitic nutrition i) Yeast     ii)mushrooms   iii) Cuscuta   iv)Leeches

    • A.

      (i) ,(ii)

    • B.

      (iii)

    • C.

      (iii) ,(iv)

    • D.

      (i)

    Correct Answer
    B. (iii)
    Explanation
    Cuscuta is a parasitic plant that obtains its food by attaching itself to other plants and extracting nutrients from them. It does not have chlorophyll and cannot perform photosynthesis, so it relies on other plants for its nutrition. This makes it an example of an organism that takes food by parasitic nutrition.

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  • 8. 

    The rate of photosynthesis is not affected by  

    • A.

      Light intensity

    • B.

      Humidity

    • C.

      Temperature

    • D.

      Carbon dioxide concentration

    Correct Answer
    B. Humidity
    Explanation
    The rate of photosynthesis is not affected by humidity. Photosynthesis is the process by which plants convert sunlight, water, and carbon dioxide into glucose and oxygen. While light intensity, temperature, and carbon dioxide concentration all play important roles in photosynthesis, humidity does not have a direct impact on the rate of this process. Humidity refers to the amount of moisture in the air, and while it can affect plant growth and transpiration, it does not directly influence the rate at which photosynthesis occurs.

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  • 9. 

    A plant is kept in dark for about forty eight hours before conducting any experiment on photosynthesis in order to

    • A.

      Remove chlorophyll from leaves

    • B.

      Remove water from leaves 

    • C.

      Ensure that no leaves are free from the starch 

    • D.

      Ensure that no photosynthesis occured 

    Correct Answer
    B. Remove water from leaves 
    Explanation
    The correct answer is "Remove water from leaves". Keeping the plant in the dark for 48 hours helps to remove excess water from the leaves. This is important because excess water can interfere with the process of measuring photosynthesis accurately. By removing water from the leaves, the experiment can focus specifically on the role of chlorophyll and the production of starch during photosynthesis.

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  • 10. 

    Cockroach: Malpighian tubules,Snail: _______

    • A.

      Green glands 

    • B.

      Flame cells 

    • C.

      Nephridia

    • D.

      Meta Nephridia

    Correct Answer
    D. Meta Nephridia
    Explanation
    Snails have meta nephridia as their excretory organ. Meta nephridia are specialized structures that help in the removal of waste products from the snail's body. They function similar to kidneys in higher animals by filtering waste materials from the blood and producing urine. This urine is then excreted from the snail's body. Therefore, the correct answer is Meta Nephridia.

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  • 11. 

    Earthworm : Nephridia , planaria :_____

    • A.

      Meta Nephiriidia 

    • B.

      Green glands

    • C.

      Flame cells

    • D.

      Canal system 

    Correct Answer
    A. Meta Nephiriidia 
    Explanation
    The correct answer is "Meta Nephiriidia". Earthworms have nephridia, which are excretory organs that help in removing waste from the body. Similarly, planaria have Meta Nephiriidia, which are also excretory organs performing a similar function. Green glands and flame cells are excretory organs found in other organisms, while the canal system is a network of tubes present in some organisms for transportation of fluids.

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  • 12. 

    The digestive juice without enzyme is 

    • A.

      Bile 

    • B.

      Gastric juice 

    • C.

      Pancreactic juice

    • D.

      Saliva

    Correct Answer
    A. Bile 
    Explanation
    Bile is the correct answer because it is a digestive juice produced by the liver and stored in the gallbladder. It aids in the digestion and absorption of fats by emulsifying them, which means it breaks down large fat globules into smaller droplets. However, bile does not contain any enzymes. Instead, it helps in the mechanical digestion of fats by increasing their surface area, allowing enzymes to work more efficiently.

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  • 13. 

    In single-celled animals, the food is taken by 

    • A.

      Body surface 

    • B.

      Mouth

    • C.

      Teeth

    • D.

      Vacuoles

    Correct Answer
    A. Body surface 
    Explanation
    In single-celled animals, such as amoebas, the food is taken in through the body surface. These organisms have a flexible cell membrane that can surround and engulf food particles. Once the food is enclosed in a small pocket called a food vacuole, it is digested and nutrients are absorbed into the cell. Unlike multicellular animals, single-celled organisms do not have specialized structures like mouths or teeth for feeding. Instead, they rely on their cell membrane to directly interact with their environment and obtain nutrients.

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  • 14. 

    Which part of the plant takes in carbon dioxide from the air for photosynthesis

    • A.

      Root hair 

    • B.

      Stomata 

    • C.

      Leaf veins

    • D.

      Sepala

    Correct Answer
    B. Stomata 
    Explanation
    Stomata are small openings on the surface of plant leaves that allow for gas exchange. They are responsible for taking in carbon dioxide from the air for the process of photosynthesis.

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  • 15. 

    Hormones released by Pancreas

    • A.

      Vaso pressin

    • B.

      Adrenalin

    • C.

      Insulin

    • D.

      Progesterone

    Correct Answer
    C. Insulin
    Explanation
    Insulin is a hormone released by the pancreas. It plays a crucial role in regulating blood sugar levels by allowing cells in the body to take in glucose from the bloodstream. Insulin helps to lower blood sugar levels by promoting the storage of glucose in the liver, muscles, and fat cells. It also inhibits the production of glucose by the liver. Insulin deficiency or resistance can lead to high blood sugar levels, which is a characteristic of diabetes.

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