Life process in Animals and Plants – Online MCQs Test – Biology MCAT

1. Wilting of leaves in hot weather is due to

2. Hepatic and Pancreatic secretions are also stimulated by a hormone produced by the intestinal mucosa. The hormone is

3. The principal transpiring organ of a plant is

4. Absorption of water by root is increased by

5. Pharynx of planaria opens in

6. Insectivorous plants obtain _____ by digestion of insects.

7. Root system in a plant is well developed

8. Blocking of arteries is due to deposition of fats and calcium is called

9. All of the following are correct about gas exchange in humans EXCEPT

10. By nature, ribulose is

11. Digestion occurs in gut cavity in.

12. Which condition is required for proper function of pancreatic enzymes?

13. The first preferred respiratory substrate is

14. Sites of gaseous exchange in human lungs are:

15. The carbohydrates synthesized in the leaves are transported through sieve tubes most commonly in the form of

16. Carbon dioxide is carried as bicarbonate ions combined with ___ plasma:

17. In amphibians and reptiles, the left atrium receives oxygenated blood from the gills/lungs skin and the right atrium receives gets the deoxygenated blood from other body parts. However, its gets mixed up in the single ventricle which pumps out mixed blood called

18. The conditions under which transpiration would be most rapid

19. Purkinje fibres mainly help in contraction of

20. Gastric enzymes work best in an environment with a pH of