#1
Which of the following is a primary function of plant roots?
Nutrient absorption
ExplanationRoots primarily absorb nutrients from the soil.
#2
Which part of a plant is responsible for producing pollen?
Anther
ExplanationThe anther is the part of the flower where pollen is produced.
#3
Which gas is primarily involved in the process of photosynthesis?
Carbon dioxide
ExplanationCarbon dioxide is the primary gas used in photosynthesis.
#4
What is the purpose of the cuticle on the surface of plant leaves?
Preventing water loss
ExplanationThe cuticle acts as a waterproof barrier, reducing water loss from leaves.
#5
Which plant structure is responsible for the production of seeds?
Flower
ExplanationThe flower produces seeds through sexual reproduction.
#6
What is the main purpose of stomata in plant leaves?
Gas exchange
ExplanationStomata regulate gas exchange, facilitating photosynthesis.
#7
Which plant hormone is responsible for promoting fruit ripening?
Ethylene
ExplanationEthylene is crucial for fruit ripening.
#8
What is the term for the process of water movement through a plant from roots to leaves?
Transpiration
ExplanationTranspiration is the movement of water from roots to leaves.
#9
Which plant structure is responsible for anchoring the plant in the soil and absorbing water?
Root
ExplanationRoots anchor plants and absorb water and nutrients from the soil.
#10
What is the role of mycorrhizal associations in plant roots?
Enhancing water absorption
ExplanationMycorrhizal associations increase the surface area of roots, aiding water absorption.
#11
Which part of the flower contains the female reproductive organs?
Carpel
ExplanationThe carpel contains the female reproductive structures of the flower.
#12
What is the process by which plants convert light energy into chemical energy?
Photosynthesis
ExplanationPhotosynthesis converts light energy into chemical energy, producing glucose.
#13
In which plant cell organelle does photosynthesis occur?
Chloroplast
ExplanationPhotosynthesis primarily occurs in chloroplasts.
#14
What is the primary function of the xylem in a plant?
Transporting water and minerals
ExplanationXylem primarily transports water and minerals from roots to the rest of the plant.
#15
Which plant adaptation helps in reducing water loss in arid environments?
Succulent tissues
ExplanationSucculent tissues store water, reducing water loss in arid conditions.
#16
What is the function of the phloem in a plant?
Carrying sugars produced during photosynthesis
ExplanationPhloem transports sugars produced in photosynthesis to various parts of the plant.
#17
Which plant hormone is associated with the inhibition of stem elongation?
Ethylene
ExplanationEthylene inhibits stem elongation, controlling plant growth.