Plant Biology Quiz 25 (20 MCQs)

Quiz Instructions

Select an option to see the correct answer instantly.

1. When a plant responds to touch such as a grape vine wrapping around a branch.

Correct Answer: C) Thigmotropism.

2. What are leaves for?

Correct Answer: A) Helping the plant do photosynthesis.

3. The water pressure inside plant cell vacuoles is called .....

Correct Answer: B) Turgor Pressure.

4. Pores in the cuticle of a plant through which gas exchange occurs.

Correct Answer: A) Stomata.

5. The plant roots grow towards gravity is known as

Correct Answer: B) Geotropism.

6. Why do plants do photosynthesis? ? ? ? ?

Correct Answer: A) To make food.

7. If carbon dioxide is completely removed from a plants environment, what would you expect to happen to the plants production of high energy sugars?

Correct Answer: A) No sugars will be produced.

8. Why are mosses so small?

Correct Answer: D) They do not have vascular tissue.

9. Nonvascular plants get their water by .....

Correct Answer: D) Osmosis.

10. What is process of water moving through plants and evaporating from the leaves and stems into the atmosphere?

Correct Answer: A) Transpiration.

11. In complete flowers, the entire male reproductive structure is called the ....., and the entire female reproductive structure is called the .....

Correct Answer: C) Stamen, pistil.

12. Plants and how they Breathe? ? ? ? ? ? ? ?

Correct Answer: D) They breathe in carbon dioxide and they breathe out oxygen.

13. Which are the products of photosynthesis

Correct Answer: A) Glucose and oxygen.

14. Small openings in the epidermis that allows oxygen, water, and carbon dioxide to enter and leave are called

Correct Answer: C) Stomata.

15. What does the word GERMINATE mean?

Correct Answer: C) Begins to grow.

16. How do minerals enter into plant cells? I. Active transportII. Bulk flow (with water)III. Transport by Phloem

Correct Answer: B) I and II only.

17. A pollen grain landing near an ovule produces a

Correct Answer: B) Pollen tube.

18. In plant transport, the movement of liquid in response to the pressure gradient is which of the following?

Correct Answer: B) Bulk flow.

19. Water has many unique properties. The attraction of water molecules to other kinds of molecules is called

Correct Answer: C) Adhesion.

20. What does phloem carry up the stem

Correct Answer: A) Sugar.