Biology Practice: Digestive System (Mock Test 1 - Basic Level)
1. The muscular tube that carries food from the mouth to the stomach is the:
2. Which enzyme is present in human saliva to begin the digestion of starch?
3. The hardest substance in the human body, covering the crown of the tooth, is:
4. Where is Bile juice produced in the human body?
5. The finger-like projections in the small intestine that increase the surface area for absorption are:
6. Hydrochloric acid (HCl) is secreted by the walls of the:
7. The wave-like muscular contractions that push food through the digestive tract are called:
8. Which part of the digestive system is primarily responsible for the absorption of water?
9. The semi-solid mass of partially digested food that leaves the stomach is called:
10. How many permanent teeth are found in a normal adult human?
11. Which teeth are used primarily for tearing food (flesh)?
12. The final products of protein digestion are:
13. The flap of tissue that prevents food from entering the windpipe (glottis) is the:
14. Bile juice helps in the digestion of fats through a process called:
15. The C-shaped first part of the small intestine is called the:
16. Pepsin is an enzyme that acts only in a/an ________ medium.
17. Which organ in the human body stores bile temporarily?
18. The digestive juice that contains no enzymes but is essential for digestion is:
19. Lacteals, found in the villi, are responsible for the absorption of:
20. The process of utilizing absorbed food for growth and energy is: