Q. What is the main function of gibberellins in plants?
-
A.
Promote flowering
-
B.
Inhibit growth
-
C.
Stimulate seed germination
-
D.
Enhance photosynthesis
Solution
Gibberellins primarily stimulate seed germination in plants.
Correct Answer:
C
— Stimulate seed germination
Learn More →
Q. What is the primary hormone responsible for promoting cell elongation in plants?
-
A.
Cytokinins
-
B.
Gibberellins
-
C.
Auxins
-
D.
Abscisic Acid
Solution
Auxins are the primary hormones that promote cell elongation in plants.
Correct Answer:
C
— Auxins
Learn More →
Q. What is the role of stomata in plant leaves?
-
A.
Water absorption
-
B.
Gas exchange
-
C.
Nutrient uptake
-
D.
Support
Solution
Stomata are responsible for gas exchange in plant leaves.
Correct Answer:
B
— Gas exchange
Learn More →
Q. What is the term for the growth response of a plant to light?
-
A.
Thigmotropism
-
B.
Phototropism
-
C.
Gravitropism
-
D.
Hydrotropism
Solution
Phototropism is the growth response of a plant to light.
Correct Answer:
B
— Phototropism
Learn More →
Q. What process do plants use to convert sunlight into chemical energy?
-
A.
Respiration
-
B.
Photosynthesis
-
C.
Transpiration
-
D.
Fermentation
Solution
Photosynthesis is the process by which plants convert sunlight into chemical energy.
Correct Answer:
B
— Photosynthesis
Learn More →
Q. Which nutrient is essential for the synthesis of chlorophyll?
-
A.
Nitrogen
-
B.
Phosphorus
-
C.
Potassium
-
D.
Calcium
Solution
Nitrogen is essential for the synthesis of chlorophyll in plants.
Correct Answer:
A
— Nitrogen
Learn More →
Q. Which part of the plant is primarily responsible for nutrient and water uptake?
-
A.
Leaves
-
B.
Stems
-
C.
Roots
-
D.
Flowers
Solution
Roots are primarily responsible for nutrient and water uptake in plants.
Correct Answer:
C
— Roots
Learn More →
Q. Which part of the plant is primarily responsible for photosynthesis?
-
A.
Roots
-
B.
Stems
-
C.
Leaves
-
D.
Flowers
Solution
Leaves are primarily responsible for photosynthesis in plants.
Correct Answer:
C
— Leaves
Learn More →
Q. Which plant hormone is involved in the response to drought stress?
-
A.
Gibberellins
-
B.
Ethylene
-
C.
Abscisic Acid
-
D.
Auxins
Solution
Abscisic Acid is involved in the plant's response to drought stress.
Correct Answer:
C
— Abscisic Acid
Learn More →
Q. Which process involves the movement of water through a plant?
-
A.
Transpiration
-
B.
Photosynthesis
-
C.
Respiration
-
D.
Germination
Solution
Transpiration involves the movement of water through a plant.
Correct Answer:
A
— Transpiration
Learn More →
Showing 1 to 10 of 10 (1 Pages)
