Quiz: Important Biology Trivia Questions

130 Questions | Total Attempts: 235

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Quiz: Important Biology Trivia Questions

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!


Questions and Answers
  • 1. 
    The inner wall of the gut, surrounding the lumen consists of
    • A. 

      Circular smooth muscle

    • B. 

      Epithlium

    • C. 

      Connective tissue

    • D. 

      Longitudinal smooth muscle

    • E. 

      Mesentry

  • 2. 
    Motility in the gut is controlled by
    • A. 

      The mesentery

    • B. 

      The submucosal plexus

    • C. 

      The myenteric plexus

    • D. 

      The Serosa

    • E. 

      The Mucosa

  • 3. 
    Which of the following statements are true concerning the lower oesophageal sphincter1 it is composed of skeletal muscle2 it is normally in the contracted state3 it controls the exit of materal from the stomach4 it prevents reflux of stomach acid into the oesophagus5, it relaxes during swallowing
    • A. 

      1 only

    • B. 

      1,2 and 4 only

    • C. 

      1, 3, and 5 only

    • D. 

      2,4. and 5 only

    • E. 

      All 5 of above

  • 4. 
    Rugae are
    • A. 

      Glands in the wall of the gastrointestinal tract

    • B. 

      Folds in the wall of the stomach

    • C. 

      Bands of longitudinal muscle in the duodenum

    • D. 

      Collections of villi in the small intestine

    • E. 

      Contraction of the oesophagus

  • 5. 
    Contraction of the circular muscle layer in the gut wall causes
    • A. 

      The gut to lengthen

    • B. 

      The gut to become narrower

    • C. 

      The gut to become shorter

    • D. 

      The gut to become wider

    • E. 

      No change in the dimensions of the gut

  • 6. 
    Which of the following are found in salvia
    • A. 

      Water

    • B. 

      Ions

    • C. 

      Mucus

    • D. 

      Enzymes

    • E. 

      All of the above

  • 7. 
    Which of the following statements about the oesophagus is FALSE
    • A. 

      Food is propelled by peristalsis

    • B. 

      Absorption of nutrients takes place

    • C. 

      There are no digestive enzymes secreted

    • D. 

      It transport food to the stomach

    • E. 

      It secretes mucus

  • 8. 
    Which one of the following is not a component of the hepatobiliary system
    • A. 

      Liver

    • B. 

      Pancreas

    • C. 

      Gallbladder

    • D. 

      Stomach

    • E. 

      Bile duct

  • 9. 
    In which part of the intestine does most digestion and absoption of nutrients take place
    • A. 

      Duodenum

    • B. 

      Jejunum

    • C. 

      Ileum

    • D. 

      Colon

    • E. 

      Caecum

  • 10. 
    Amylase is the enzyme respponsible for
    • A. 

      The breakdown of proteins to amino acids

    • B. 

      The breakdown of strach to monosaccharides

    • C. 

      The breakdown of lipids to fatty acids

    • D. 

      The synthesis of large polysaccharides in the gut

    • E. 

      The emulsification of fat droplets

  • 11. 
    Which one of the following statements is FALSE
    • A. 

      Fructose is absorbed by carrier - mediated diffusion

    • B. 

      Glucose is absorbed by secondary active transport with sodium ions

    • C. 

      Galactose is absorbed by simple diffusion

    • D. 

      Amino acids are absorbed by secondary active transport with sodium ions

    • E. 

      Lipids are absorbed with the aid of micelles

  • 12. 
    Chylomicrons are
    • A. 

      Partially digested protein

    • B. 

      The products of carbohydrate digestion

    • C. 

      Small electrically charged sugar molecules

    • D. 

      Formed by the combination of triglycerides and cholesterol

    • E. 

      Microscopic particles of faeces

  • 13. 
    Arteries carry blood ---------------------- from heart nd towards --------------------------
    • A. 

      Away, Tissue

    • B. 

      Towards, tissue

    • C. 

      Away, veins

    • D. 

      Towards, vein

  • 14. 
    What is exchanged between blood and tissue
    • A. 

      Oxygen

    • B. 

      Carbon-dioxide

    • C. 

      Nutreints

    • D. 

      Waste

    • E. 

      All of above

  • 15. 
    What differnet types of tissue are found in artery walls
    • A. 

      Epithielam

    • B. 

      Smooth muscle

    • C. 

      Connective

    • D. 

      All above

  • 16. 
    Which blood vessel : is site of gas exchange and waste exchange
    • A. 

      Capillary

    • B. 

      Artery

    • C. 

      Vein

    • D. 

      Ateriole

    • E. 

      Venule

  • 17. 
    Which blood vessel: reservoir for approx 60% of total blood
    • A. 

      Capillery

    • B. 

      Artery

    • C. 

      Vein

    • D. 

      Arteriole

    • E. 

      Venule

  • 18. 
    Which blood vessel: plays important role in regulating blood pressure and in distributing blood
    • A. 

      Cainpillary

    • B. 

      Artery

    • C. 

      Vein

    • D. 

      Arterole

    • E. 

      Venule

  • 19. 
    What does this descibe :these have thinner walls, it relates to the blood pressure is less, they have valves to prevent backflow
    • A. 

      Capillary

    • B. 

      Artery

    • C. 

      Vein

    • D. 

      Arterole

    • E. 

      Venule

  • 20. 
    The hollow centre of blood vessels through which blood flows is called the
    • A. 

      Lamina

    • B. 

      Lumen

    • C. 

      Tunica Interna

    • D. 

      Pre-capillary spincter

    • E. 

      Tunica adventitia

  • 21. 
    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
    • A. 

      Arteries

    • B. 

      Capillaries

    • C. 

      Veins

    • D. 

      Venules

    • E. 

      Arterioles

  • 22. 
    Relaxation or decrease in the amount of smooth muscle contraction results in --------------- & ---------------- in the size of arteriole
    • A. 

      Vasocontriction , increase

    • B. 

      Vasoconstriction, decrease

    • C. 

      Vasodilation , increase

    • D. 

      Casodilation , decrease

    • E. 

      None of these

  • 23. 
    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
    • A. 

      Arteriole

    • B. 

      Artery

    • C. 

      Venule

    • D. 

      Capillary

    • E. 

      Vein

  • 24. 
    Which of the following is NOT true of resistance
    • A. 

      The smaller the blood flow the greater the resistance

    • B. 

      The thicker the blood the higher the resistance

    • C. 

      The longer the vessel the greater the resistance

    • D. 

      The smaller the diameter the greater the resistance

    • E. 

      It is likely to increase by dehydration

  • 25. 
    The pulmonary circulation carries deoxgenated blood from the --------------------- to the lung and returns oxygenated blood from the lungs to the -------------
    • A. 

      Left ventricle, right atrium

    • B. 

      Right ventricle, left atrium

    • C. 

      Left atrium, right ventricle

    • D. 

      Right atrium, left ventricle

    • E. 

      Right ventricle, left ventricle

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