Photosynthesis MCQs
Photosynthesis MCQs
Answer these Photosynthesis MCQs and see how sharp is your knowledge of Photosynthesis. Scroll down and let's start!
1: The _____ reaction of photosynthesis produces oxygen and atp.
A. Light
B. Cytoplasm
C. Krebs Cycle
D. Decreases
2: In c3 plants the conservation of water promotes _____.
A. Photosynthesis
B. A shift to C4 photosynthesis
C. The opening of stomata
D. Photorespiration
3: What is photosynthesis?
A. The breakdown of glucose to produce energy
B. The synthesis of proteins from amino acids
C. The process by which plants convert light energy into chemical energy
D. The production of oxygen from carbon dioxide
4: What are the primary pigments involved in photosynthesis?
A. Chlorophyll a and chlorophyll b
B. Xanthophylls and carotenoids
C. Anthocyanins and phycobilins
D. Melanin and eumelanin
5: In which organelle does photosynthesis occur?
A. Nucleus
B. Mitochondria
C. Chloroplast
D. Endoplasmic reticulum
6: What are the products of photosynthesis?
A. Oxygen and glucose
B. Carbon dioxide and water
C. Glucose and water
D. Oxygen and water
7: During photosynthesis, light energy is absorbed by:
A. Stomata
B. Chloroplasts
C. Thylakoid membranes
D. Xylem cells
8: What is the primary source of energy for photosynthesis?
A. Sunlight
B. ATP
C. Glucose
D. Water
9: The light-dependent reactions of photosynthesis take place in the:
A. Stroma
B. Thylakoid membranes
C. Chloroplasts
D. Grana
10: What is the role of NADPH in photosynthesis?
A. To absorb light energy
B. To transfer electrons during the light-dependent reactions
C. To synthesize ATP
D. To convert carbon dioxide into glucose
11: What is the Calvin cycle?
A. The light-dependent reactions of photosynthesis
B. The breakdown of glucose to produce energy
C. The synthesis of glucose from carbon dioxide during the light-independent reactions
D. The synthesis of ATP from ADP and phosphate
12: Which wavelengths of light are most effectively absorbed by chlorophyll?
A. Blue and red
B. Green and yellow
C. Orange and violet
D. Ultraviolet and infrared
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Photosynthesis MCQs
