Plant Biology Quiz 26 (20 MCQs)

Quiz Instructions

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1. Today scientists know that photoperiodicity in plants depends primarily on

Correct Answer: A) Hours of darkness.

2. Part of the plant that is colorfull

Correct Answer: C) Petals.

3. Phototropism is

Correct Answer: B) The plant response to light.

4. The male reproductive structure of the flower that produce pollen grains that contain male gametes *

Correct Answer: A) The stamen.

5. Which force causes water molecules to stick to each other by hydrogen bonds?

Correct Answer: C) Cohesion.

6. What part of the plant is responsible for making food?

Correct Answer: D) Leaves.

7. Which of the following is NOT specifically a plant adaptation for life on land?

Correct Answer: C) Auxins.

8. What is the function of NADP+?

Correct Answer: B) It is an electron carrier.

9. Growth of plant in response to touch

Correct Answer: C) Thigmotropism.

10. Dicotyledons have ..... seed leaves.

Correct Answer: C) 2.

11. Apical meristems are

Correct Answer: D) All of the choices.

12. The function of roots is

Correct Answer: D) Both B and C.

13. STACKS OF THYLAKOIDS ARE CALLED STROMA

Correct Answer: B) FALSE.

14. What cells allow the stomata to open and close

Correct Answer: C) Guard Cells.

15. Where could you find an angiosperm living?

Correct Answer: D) In wet or dry environments.

16. A type of gas needed by plants for photosynthesis. People and animals create much of this.

Correct Answer: A) Carbon dioxide.

17. Which force directly causes water molecules to stick to the xylem wall?

Correct Answer: C) Adhesion.

18. What is the tough layer of dead cells in the epidermis? *

Correct Answer: C) Cork.

19. What part of the female part of the flower is a tube that pollen travels through?

Correct Answer: B) Style.

20. A plant is a (n)

Correct Answer: D) Multicellular eukaryote.