Quiz: Important Biology Trivia Questions

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  • 1/130 Questions

    The inner wall of the gut, surrounding the lumen consists of

    • Circular smooth muscle
    • Epithlium
    • Connective tissue
    • Longitudinal smooth muscle
    • Mesentry
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About This Quiz

Below is an important biology trivia questions that a biology student should not have a hard time answering. It has some of the hardest questions according to some students and therefore if you give it a try and get the top marks, you should consider yourself smart. Do give it a try and get to see just how well you will do!

Quiz: Important Biology Trivia Questions - Quiz

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  • 2. 

    Motility in the gut is controlled by

    • The mesentery

    • The submucosal plexus

    • The myenteric plexus

    • The Serosa

    • The Mucosa

    Correct Answer
    A. The myenteric plexus
  • 3. 

    Rugae are

    • Glands in the wall of the gastrointestinal tract

    • Folds in the wall of the stomach

    • Bands of longitudinal muscle in the duodenum

    • Collections of villi in the small intestine

    • Contraction of the oesophagus

    Correct Answer
    A. Folds in the wall of the stomach
  • 4. 

    Contraction of the circular muscle layer in the gut wall causes

    • The gut to lengthen

    • The gut to become narrower

    • The gut to become shorter

    • The gut to become wider

    • No change in the dimensions of the gut

    Correct Answer
    A. The gut to become narrower
  • 5. 

    Which of the following are found in salvia

    • Water

    • Ions

    • Mucus

    • Enzymes

    • All of the above

    Correct Answer
    A. All of the above
  • 6. 

    Which of the following statements about the oesophagus is FALSE

    • Food is propelled by peristalsis

    • Absorption of nutrients takes place

    • There are no digestive enzymes secreted

    • It transport food to the stomach

    • It secretes mucus

    Correct Answer
    A. Absorption of nutrients takes place
  • 7. 

    Which one of the following is not a component of the hepatobiliary system

    • Liver

    • Pancreas

    • Gallbladder

    • Stomach

    • Bile duct

    Correct Answer
    A. Stomach
  • 8. 

    In which part of the intestine does most digestion and absoption of nutrients take place

    • Duodenum

    • Jejunum

    • Ileum

    • Colon

    • Caecum

    Correct Answer
    A. Jejunum
  • 9. 

    Which one of the following statements is FALSE

    • Fructose is absorbed by carrier - mediated diffusion

    • Glucose is absorbed by secondary active transport with sodium ions

    • Galactose is absorbed by simple diffusion

    • Amino acids are absorbed by secondary active transport with sodium ions

    • Lipids are absorbed with the aid of micelles

    Correct Answer
    A. Galactose is absorbed by simple diffusion
  • 10. 

    Chylomicrons are

    • Partially digested protein

    • The products of carbohydrate digestion

    • Small electrically charged sugar molecules

    • Formed by the combination of triglycerides and cholesterol

    • Microscopic particles of faeces

    Correct Answer
    A. Formed by the combination of triglycerides and cholesterol
  • 11. 

    What is exchanged between blood and tissue

    • Oxygen

    • Carbon-dioxide

    • Nutreints

    • Waste

    • All of above

    Correct Answer
    A. All of above
  • 12. 

    What differnet types of tissue are found in artery walls

    • Epithielam

    • Smooth muscle

    • Connective

    • All above

    Correct Answer
    A. All above
  • 13. 

    Which blood vessel : is site of gas exchange and waste exchange

    • Capillary

    • Artery

    • Vein

    • Ateriole

    • Venule

    Correct Answer
    A. Capillary
  • 14. 

    Which blood vessel: plays important role in regulating blood pressure and in distributing blood

    • Cainpillary

    • Artery

    • Vein

    • Arterole

    • Venule

    Correct Answer
    A. Arterole
  • 15. 

    What does this descibe :these have thinner walls, it relates to the blood pressure is less, they have valves to prevent backflow

    • Capillary

    • Artery

    • Vein

    • Arterole

    • Venule

    Correct Answer
    A. Vein
  • 16. 

    The hollow centre of blood vessels through which blood flows is called the

    • Lamina

    • Lumen

    • Tunica Interna

    • Pre-capillary spincter

    • Tunica adventitia

    Correct Answer
    A. Lumen
  • 17. 

    Blood vessels that are composed of only a single layer of cells and a basement membrane and that allow exchange of nutrients between the blood and tissues cells are called

    • Arteries

    • Capillaries

    • Veins

    • Venules

    • Arterioles

    Correct Answer
    A. Capillaries
  • 18. 

    Relaxation or decrease in the amount of smooth muscle contraction results in --------------- & ---------------- in the size of arteriole

    • Vasocontriction , increase

    • Vasoconstriction, decrease

    • Vasodilation , increase

    • Casodilation , decrease

    • None of these

    Correct Answer
    A. Vasodilation , increase
  • 19. 

    If blood vessels has a wall consisting of a layer of endothelium & a basement membrane and the diameter of the vessel is approximately the same as that of a red blood cell then the vessel is probadly a

    • Arteriole

    • Artery

    • Venule

    • Capillary

    • Vein

    Correct Answer
    A. Capillary
  • 20. 

    What method is used to calculate energy expenditure by measuring oxygen consumption

    • Bomb calorimetry

    • Basal calorimetry

    • Direct calorimetry

    • Indirect calorimetry

    • Excersice calorimetry

    Correct Answer
    A. Indirect calorimetry
  • 21. 

    What percentage of the day's total energy expenditure of the average person is represented by the basal metobolism

    • 10-15%

    • 30 -40%

    • 65 - 70%

    • Over 90%

    • Less than 5%

    Correct Answer
    A. 65 - 70%
  • 22. 

    What is the major factor that determine basal metabolic rate

    • Age

    • Gender

    • Body composition

    • Body weight

    • Activity levels

    Correct Answer
    A. Body composition
  • 23. 

    Which of the following is a feature of basal metabolic rate (bmr)

    • Fever decrease bmr

    • Fasting increase bmr

    • Hyperthyroidism increase bmr

    • Females have higher bmr than males on a body weight basis

    • Pregnancy decrease bmr

    Correct Answer
    A. Hyperthyroidism increase bmr
  • 24. 

    What is athe range of body fat content of normal weight young women

    • 9- 17%

    • 25-30%

    • 33 - 37%

    • 38 - 44%

    • 50 - 60%

    Correct Answer
    A. 25-30%
  • 25. 

    What is the range of body fat of normal weight young men

    • 5 -9%

    • 12 -15%

    • 15 - 22%

    • 23 - 28%

    • 35 - 40%

    Correct Answer
    A. 12 -15%
  • 26. 

    The recommended energy intake for an average 25yr old woman is

    • 15000kcals

    • 3200 kcals

    • 2000 kcals

    • 2700 kcals

    • 1000 kcals

    Correct Answer
    A. 2000 kcals
  • 27. 

    The thermic effect of food normally accounts for how much of TEE

    • 5- 10%

    • 15-30%

    • 35 -40%

    • MORE THAN 50%

    • LESS THAN 5%

    Correct Answer
    A. 5- 10%
  • 28. 

    Dietary guidelines recommend that carbohydrates contribute what percentage of the total energy intake

    • 25-30%

    • 55 -60%

    • 65 -75%

    • 85 - 90%

    • Less than 25%

    Correct Answer
    A. 55 -60%
  • 29. 

    Which of the following is a component of all 3 disaccharides

    • Sucrose

    • Glucose

    • Fructose

    • Galatose

    • Maltose

    Correct Answer
    A. Glucose
  • 30. 

    What is another name for lactose

    • Milk sugar

    • Table sugar

    • Fruit sugar

    • Artifical sugar

    • None of the above

    Correct Answer
    A. Milk sugar
  • 31. 

    Glycogen is stored mainly in which of the following tissue

    • Pancreas and kidney

    • Stomach and intestine

    • Muscle and liver

    • Brain and red blood cells

    • Adipose tissue

    Correct Answer
    A. Muscle and liver
    Explanation
    400g stored in muscle , 100g in liver

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  • 32. 

    Which of the following in not a function of fat

    • Carrier of fat - soluble vitamins

    • Adds favour to food

    • Best source of energy for the brain

    • Essential constituent of body tissue

    • Provides a long term energy store

    Correct Answer
    A. Best source of energy for the brain
    Explanation
    glucose is energy for brain

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  • 33. 

    Current recommendation for the percentage contribution of fat in the diet are

    • 40-45%

    • Less than 20%

    • 30 - 35%

    • 55 -60%

    • 25 - 30%

    Correct Answer
    A. 30 - 35%
  • 34. 

    What compound is composed of 3 fatty acids attached to a molecule of glycerol

    • Steroid

    • Triglyceride

    • Phospholipid

    • Monoglyceride

    • Glycogen

    Correct Answer
    A. Triglyceride
  • 35. 

    A primary function of fat in the body is to

    • Build muscle tissue

    • Protect vital organs

    • Regulate body processes

    • Provide the nervous system with energy

    • Provide a rapid supply of energy during intense excersice

    Correct Answer
    A. Protect vital organs
  • 36. 

    How many differnet kinds of amino acids make up proteins

    • 8

    • 10

    • 14

    • 26

    • 20

    Correct Answer
    A. 20
  • 37. 

    What is the process by which heat or acidity disrupts the normal shape of a protein chain

    • Digestion

    • Condensation

    • Denaturation

    • Hydrogenation

    • Mutation

    Correct Answer
    A. Denaturation
  • 38. 

    Which of the following proteins inactivate foreign bacteria and viruses

    • Enzymes

    • Hormones

    • Antibodies

    • Callagen

    • Naemoglobin

    Correct Answer
    A. Antibodies
  • 39. 

    Most enzymes are

    • Fibrous protein

    • Globular proteins

    • Polysacchardes

    • Lipoproteins

    • Co-enzymes

    Correct Answer
    A. Globular proteins
  • 40. 

    Which of the following characteristics of enzymes is not true

    • They are all catalysts

    • They have a protein structure

    • They are destroyed by excess heat

    • They are destoyed by cold temperature

    • They are specific to one substrate

    Correct Answer
    A. They are destoyed by cold temperature
  • 41. 

    What is the major energy carrier in most cells

    • ATP

    • Glucose

    • Pyruvic acid

    • A kilocalorie

    • Oxygen

    Correct Answer
    A. ATP
  • 42. 

    Glycolsis is the conversion of

    • Glycogen to fat

    • Glucose to glycogen

    • Glucose to pyruvic acid

    • Glycogen to protein

    • Glucose to acetyl coa

    Correct Answer
    A. Glucose to pyruvic acid
  • 43. 

    The sucssive stages in the breakdown of glucose in the cell are

    • Glycolsis, acetyl coa formation, etc krebs cycle

    • Krebs cycle, glycolsis, acetyl coa formation etc

    • Acetyl coa formation etc glycolsis krebs cycle

    • Glycolysis acetyl coa formation krebs etc

    • Glycolsis krebs cycle acetyl coa formation etc

    Correct Answer
    A. Glycolysis acetyl coa formation krebs etc
  • 44. 

    Glycolysis is a way of producing ATP anaerobically if there were 4 glucose molecules available for glycolysis how many ATP will be produced

    • 6

    • 16

    • 152

    • 8

    • 4

    Correct Answer
    A. 8
  • 45. 

    If there were 6 molecules of glucose available how many ATP ould be produced if they were completely oxidised to carbon dioxide and water

    • 24

    • 12

    • 228

    • 380

    • 180

    Correct Answer
    A. 228
  • 46. 

    When a person is performing intense physical excercise and begins to feel fatigue and burning pain in the muscle it is most likely due to the muscle accumulation of

    • Citric acid

    • Pyruvic acid

    • Lactic acid

    • Calcium

    • Acetyl coa

    Correct Answer
    A. Lactic acid
  • 47. 

    The partial pressure of carbon dioxide in the alveolia is

    • 159 mmhg

    • 40mmhg

    • 46mmhg

    • 105mmhg

    • 0.3mmhg

    Correct Answer
    A. 40mmhg
  • 48. 

    The partial pressure of oxygen in the arteriol blood is

    • 159mmhg

    • 40mmhg

    • 46mmhg

    • 105mmhg

    • 0.3mmhg

    Correct Answer
    A. 105mmhg
  • 49. 

    Partial pressure of oxygen in the alveolia is less than in the atmostphere because

    • Oxygen leaks across the walls of the bronchi

    • Carbon doixide and water vapour are present in the alveolia in higher concentration than the atmosphere

    • Atmospheric pressure is much less in the alveoli

    • The lungs compress alveolar gas

    • There is more nitrogen in the alveoli

    Correct Answer
    A. Carbon doixide and water vapour are present in the alveolia in higher concentration than the atmosphere

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  • Current Version
  • Mar 19, 2022
    Quiz Edited by
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  • Feb 21, 2010
    Quiz Created by
    Littletough

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