#1
Which pigment primarily absorbs light for photosynthesis?
Chlorophyll
ExplanationChlorophyll absorbs light energy.
#2
In which organelle does photosynthesis occur?
Chloroplast
ExplanationPhotosynthesis occurs in the chloroplast.
#3
What is the main product of the light-dependent reactions in photosynthesis?
Oxygen
ExplanationOxygen is the main product of the light-dependent reactions.
#4
What is the primary source of energy for photosynthesis?
Light
ExplanationLight is the primary source of energy for photosynthesis.
#5
What is the function of the Calvin cycle in photosynthesis?
Fixing carbon dioxide
ExplanationThe Calvin cycle fixes carbon dioxide into organic molecules.
#6
Which photosystem comes first in the light-dependent reactions of photosynthesis?
Photosystem II
ExplanationPhotosystem II comes first in the light-dependent reactions.
#7
What wavelengths of light are most effective for photosynthesis?
Red and blue
ExplanationRed and blue wavelengths of light are most effective for photosynthesis.
#8
What is the significance of the light-independent reactions in photosynthesis?
To produce glucose
ExplanationThe light-independent reactions produce glucose.
#9
Which molecule is reduced during the light-dependent reactions of photosynthesis?
NADP+
ExplanationNADP+ is reduced during the light-dependent reactions.
#10
Which part of the chloroplast contains the chlorophyll pigments?
Thylakoid membrane
ExplanationChlorophyll pigments are located in the thylakoid membrane.
#11
What is photophosphorylation?
The synthesis of ATP using light energy
ExplanationPhotophosphorylation is the synthesis of ATP using light energy.
#12
What is the role of water in photosynthesis?
To act as an electron donor
ExplanationWater acts as an electron donor in photosynthesis.
#13
What is the primary function of the antenna complex in photosynthesis?
To absorb photons of light
ExplanationThe antenna complex absorbs photons of light.
#14
What role does rubisco play in photosynthesis?
It catalyzes the fixation of carbon dioxide
ExplanationRubisco catalyzes the fixation of carbon dioxide.
#15
What is the primary purpose of the electron transport chain in photosynthesis?
To transfer electrons and create a proton gradient
ExplanationThe electron transport chain transfers electrons and creates a proton gradient.
#16
Which molecule serves as the final electron acceptor in the electron transport chain of photosynthesis?
NADP+
ExplanationNADP+ serves as the final electron acceptor.
#17
What is the primary function of the light-harvesting complexes in photosynthesis?
To absorb and transfer light energy to reaction centers
ExplanationLight-harvesting complexes absorb and transfer light energy to reaction centers.