Biology Practice: The Digestive System (Mock Test 3 - Moderate)
1. In Holozoic nutrition, what is the correct sequence of the five major steps?
2. Which method of digestion involves the chemical breakdown of food using enzymes?
3. How does the nutrition of a tapeworm (parasite) differ from a human (holozoic)?
4. The dental formula 2123 / 2123 tells us that in each half of the jaw, there are:
5. Which part of the tooth provides the structural foundation buried inside the gums?
6. Tooth decay is caused when bacteria break down sugar from leftover food and release:
7. The tongue helps in mixing food with saliva. What other major function does it perform?
8. Which of the following is a common passageway for both food and air?
9. What happens to the trachea (wind pipe) when we swallow food?
10. Food stays in the stomach for about how long during the churning process?
11. In the stomach, which enzyme is responsible for breaking down proteins into polypeptides?
12. The first part of the small intestine where the maximum digestion occurs is called the:
13. Bile juice is essential for digestion even though it contains no enzymes. Why?
14. Which enzyme in pancreatic juice specifically targets the digestion of starch into maltose?
15. The digestion of fats finally results in the production of:
16. What was William Beaumont's major discovery regarding the stomach?
17. In the parchment paper activity, why could sugar pass through the membrane while starch could not?
18. The process of transport of nutrients from the small intestine to cells via blood is:
19. Which organ regulates the level of sugar in our blood along with aiding digestion?
20. What is the approximate length of the human oesophagus?