Crop Physiology Quiz 10 (20 MCQs)

Quiz Instructions

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1. A rise of 10$^ \circ$C up to the Optimum temperature (35$^ \circ$C) ..... the rate of photosynthesis.

Correct Answer: A) Doubles.

2. Which structure controls what enters and leaves the cell?

Correct Answer: C) Plasma membrane.

3. Phytochrome is a

Correct Answer: C) Chromoprotein.

4. CORTEX IS THE REGION FOUND BETWEEN .....

Correct Answer: C) EPIDERMIS & STELE.

5. What are the elements that are essential for plant growth?

Correct Answer: C) Nitrogen phosphorus and potassium.

6. The study of structural and functional relationship of plant is known as .....

Correct Answer: B) Plant physiology.

7. There are two types of Angiosperms; the type of Angiosperm that contain a seed with two cotyledons.

Correct Answer: B) Dicot.

8. Helps fruit ripen

Correct Answer: D) Ethylene.

9. Grains containing the male sex cells

Correct Answer: B) Pollen.

10. The process which makes major difference between C3 and C4 plants is ;

Correct Answer: B) Photorespiration.

11. Light energy captured by photosynthesis is used in a plant for the synthesis of

Correct Answer: B) Carbohydrate, fatty acids and proteins.

12. Water soluble pigment found in plant cell vacuoles are;

Correct Answer: C) Anthocyanins.

13. Biennial

Correct Answer: A) Last for two years.

14. THE VASCULAR CAMBIUM NORMALLY GIVES RISE TO .....

Correct Answer: B) SECONDARY XYLEM.

15. What is the process where living cells take in oxygen and give off carbon dioxide?

Correct Answer: C) Cellular Respiration.

16. Which hormone causes internodes to lengthen?

Correct Answer: A) Gibberelins.

17. Which of the following is a water soluble pigment?

Correct Answer: D) Phycobilins.

18. The photosynthetic pigments are located in .....

Correct Answer: A) Thylakoid membrane.

19. To express the relationship between the number of molecules reacting with the number of photons absorbed, the concept of ..... was introduced.

Correct Answer: A) Quantum efficiency.

20. What is the definition of day neutral plants?

Correct Answer: D) Plants that don't require a specific photoperiod.