#1
Which of the following is not a primary tissue type in plants?
Mesophyll
ExplanationMesophyll is a leaf tissue, not a primary tissue type in plants.
#2
Where does photosynthesis primarily occur in a plant cell?
Chloroplasts
ExplanationPhotosynthesis primarily occurs in the chloroplasts of plant cells.
#3
What is the role of chlorophyll in photosynthesis?
Absorbing sunlight
ExplanationChlorophyll in photosynthesis plays a key role in absorbing sunlight.
#4
Which of the following is not a factor affecting the rate of photosynthesis?
Oxygen concentration
ExplanationOxygen concentration is not a factor affecting the rate of photosynthesis.
#5
Which part of the plant cell contains the pigment chlorophyll?
Chloroplast
ExplanationChlorophyll is contained in the chloroplasts of plant cells.
#6
What is the primary role of the root hairs in a plant?
Absorbing water and nutrients
ExplanationRoot hairs in a plant primarily function in absorbing water and nutrients.
#7
Which organelle is responsible for the synthesis of sugars during photosynthesis?
Chloroplast
ExplanationThe chloroplast is responsible for the synthesis of sugars during photosynthesis.
#8
What is the primary function of stomata in a leaf?
Exchange gases
ExplanationStomata in a leaf primarily function to facilitate the exchange of gases.
#9
Which molecule is the primary product of the Calvin cycle during photosynthesis?
G3P (Glyceraldehyde-3-phosphate)
ExplanationG3P is the primary product of the Calvin cycle in photosynthesis.
#10
Which plant tissue is responsible for secondary growth?
Cambium
ExplanationCambium is the plant tissue responsible for secondary growth.
#11
What is the primary function of the palisade mesophyll in a leaf?
Photosynthesis
ExplanationThe palisade mesophyll in a leaf primarily functions in photosynthesis.
#12
Which structure is responsible for the opening and closing of stomata?
Guard cells
ExplanationGuard cells are responsible for the opening and closing of stomata.
#13
What is the main purpose of the spongy mesophyll in a leaf?
Gas exchange
ExplanationThe spongy mesophyll in a leaf mainly facilitates gas exchange.
#14
In C3 plants, where does the Calvin cycle take place?
Stroma of the chloroplasts
ExplanationIn C3 plants, the Calvin cycle takes place in the stroma of the chloroplasts.
#15
What is the role of xylem in plants?
Transporting water and minerals
ExplanationXylem in plants is responsible for transporting water and minerals.
#16
What is the significance of the light-dependent reactions in photosynthesis?
They release oxygen
ExplanationLight-dependent reactions in photosynthesis release oxygen as a byproduct.
#17
What are the two main products of the light-dependent reactions in photosynthesis?
ATP and NADPH
ExplanationThe two main products of light-dependent reactions in photosynthesis are ATP and NADPH.
#18
Which molecule serves as the final electron acceptor in the electron transport chain during photosynthesis?
Oxygen
ExplanationOxygen serves as the final electron acceptor in the electron transport chain during photosynthesis.