Life Science 4

25 Questions | Total Attempts: 33

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Life Science Quizzes & Trivia

Digestive system


Questions and Answers
  • 1. 
     Which of the following would not be covered externally by peritoneum?
    • A. 

      Heart

    • B. 

      Stomach

    • C. 

      Intestine

    • D. 

      Liver

  • 2. 
    What is the main digestive function occurring in the stomach?
    • A. 

      Absorption of the end products of digestion

    • B. 

      Protein digestion

    • C. 

      Emulsification of fats;

    • D. 

      Starch digestion

  • 3. 
    Of the following selections, the one which contains only digestive system accessory organs is:
    • A. 

      Salivary glands, pancreas, liver, gall bladder

    • B. 

      oral cavity, stomach, pancreas and liver

    • C. 

      Tongue, teeth, stomach,small and large intestine

    • D. 

      Pharynx, oesophagus, stomach, intestine

  • 4. 
    The breakdown of food by mechanical and chemical means is known as:
    • A. 

      Elimination

    • B. 

      Absorption

    • C. 

      Ingestion

    • D. 

      Digestion

  • 5. 
    Nutrients absorbed by the gastrointestinal system are transported to the cells of the body by:
    • A. 

      Blood

    • B. 

      lymph

    • C. 

      Blood and lymph

    • D. 

      carrier molecules

  • 6. 
    The main function or functions of the large intestine is/are:
    • A. 

      Storage of faeces

    • B. 

      Digestion and absorption

    • C. 

      Absorption and concentration

    • D. 

      Transport and lubrication

  • 7. 
     What is the name of the condition affecting new born babies which obstructs movement of food from the stomach to the small intestine?
    • A. 

      Phenylketonuria

    • B. 

      Pyloric stenosis

    • C. 

      Blue baby syndrome

    • D. 

      haemolytic disease of the newborn

  • 8. 
    Bile is produced in the:
    • A. 

      Pancreas

    • B. 

      Small intestine

    • C. 

      liver

    • D. 

      Gall bladder

  • 9. 
    An extra layer of oblique muscle is found in the
    • A. 

      Oesophagus

    • B. 

      Stomach

    • C. 

      Small intestine;

    • D. 

      large intestine

  • 10. 
    The location of the taste buds is on the
    • A. 

      Epiglottis

    • B. 

      oesophagus

    • C. 

      Tongue

    • D. 

      Salivary glands

  • 11. 
    Mucus in the stomach is:
    • A. 

      Alkaline

    • B. 

      Digestive in function

    • C. 

      Produced by bacteria

    • D. 

      Acid

  • 12. 
    The pancreas empties its products directly into the:
    • A. 

      liver

    • B. 

      Stomach

    • C. 

      Large intestine

    • D. 

      Small intestine

  • 13. 
    An important function of the small intestine is:
    • A. 

      Production of bile

    • B. 

      Absorption

    • C. 

      Formation of faecal material

    • D. 

      Production of hydrochloric acid

  • 14. 
    The major enzyme produced by the stomach is
    • A. 

      Amylase

    • B. 

      Chyme

    • C. 

      Mucus

    • D. 

      pepsin

  • 15. 
    An enzyme from the salivary glands breaks down:
    • A. 

      Starch

    • B. 

      Protein

    • C. 

      Glucose

    • D. 

      Lipids

  • 16. 
    Ingested food proceeds as follows through the digestive tract:
    • A. 

      Mouth, stomach , oesophagus, large intestine small intestine;

    • B. 

      Mouth,oesophagus, stomach, small intestine, large intestine;

    • C. 

      Mouth, small intestine, oesophagus, stomach, large intestine

    • D. 

      Mouth, large intestine, small intestine, stomach, oesophagus

  • 17. 
    Which of the following statements about gut motility is FALSE?
    • A. 

      Peristalsis involves stationary contractions of the muscle layers

    • B. 

      Segmentation does not propel food along the gut;

    • C. 

      Segmentation mixes food with gut secretions;

    • D. 

      Peristalsis involves contraction of muscles "upstream" from food, and relaxation of muscle "downstream".

  • 18. 
     Most food material is absorbed into the blood stream from the
    • A. 

      Stomach

    • B. 

      Small intestine

    • C. 

      Large intestine

    • D. 

      Oesophagus.

  • 19. 
     A function of hydrochloric acid in the stomach is to
    • A. 

      break down lipids

    • B. 

      kill bacteria

    • C. 

      Accelerate peristalsis

    • D. 

      Digest carbohydrates

  • 20. 
    The function of microvilli is to:
    • A. 

      Push food along the intestine

    • B. 

      Remove bacteria from the stomach

    • C. 

      break down starches;

    • D. 

      Increase surface area in the intestine

  • 21. 
     The function of sodium bicarbonate in the pancreatic juice is to:
    • A. 

      Destroy bacteria

    • B. 

      Neutralise acids

    • C. 

      Break down proteins;

    • D. 

      Digest starch

  • 22. 
    A major function of the large intestine is to
    • A. 

      Absorb amino acids

    • B. 

      Absorb nucleic acids;

    • C. 

      kill bacteria

    • D. 

      Absorb water

  • 23. 
     The pyloric sphincter releases …………… from the stomach into the duodenum:
    • A. 

      Intestinal juice

    • B. 

      pancreatic juice

    • C. 

      Bile

    • D. 

      Acid chyme

  • 24. 
    The layers of the gut wall, starting from the outside and working inwards towards the gut cavity are:
    • A. 

      Muscle layer, submucosa, mucosa, adventitia;

    • B. 

      Muscle layer, mucosa, submucosa, lumen;

    • C. 

      Adventitia, muscle layer, submucosa, mucosa

    • D. 

      Mucosa, submucosa, mucosa, adventitia

  • 25. 
     Movement of food from the stomach into the oesophagus is normally prevented by:
    • A. 

      Reverse peristalsis

    • B. 

      The pyloric sphincter

    • C. 

      a sphincter

    • D. 

      The pharynx