About this Study Set
This study set covers Biology through
29 practice questions.
This study material covers the fundamental process of photosynthesis, including its reactants, products, and the organelles involved. Every question includes the correct answer so you can learn as you go — pick any format above to get started.
Questions & Answers
Browse all 29 questions from the
Photosynthesis Study Material study set below.
Each question shows the correct answer — select a study format above to practice interactively.
1
What is the primary purpose of photosynthesis for plants?
-
A
To produce energy for growth and reproduction
-
B
To release oxygen into the atmosphere
-
C
To absorb water from the soil
-
D
To create carbon dioxide
2
Which organelle is the main site of photosynthesis in plant cells?
-
A
Mitochondria
-
B
Nucleus
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C
Chloroplast
-
D
Ribosome
3
What gas do plants absorb from the atmosphere for photosynthesis?
-
A
Oxygen
-
B
Nitrogen
-
C
Carbon Dioxide
-
D
Hydrogen
4
What is the main pigment that absorbs light energy during photosynthesis?
-
A
Carotene
-
B
Xanthophyll
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C
Chlorophyll
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D
Anthocyanin
5
What are the main products of photosynthesis?
-
A
Carbon dioxide and water
-
B
Glucose and oxygen
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C
Light and heat
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D
Nitrogen and minerals
6
What is the chemical formula for glucose?
-
A
CO2
-
B
H2O
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C
C6H12O6
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D
O2
7
In which part of the chloroplast does the light-dependent reaction of photosynthesis occur?
-
A
Stroma
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B
Thylakoid membranes
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C
Outer membrane
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D
Inner membrane
8
What is the role of sunlight in photosynthesis?
-
A
To break down water molecules
-
B
To convert carbon dioxide into sugars
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C
To provide the energy to drive the process
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D
To release oxygen
9
What is the process by which plants convert light energy into chemical energy?
-
A
Respiration
-
B
Transpiration
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C
Photosynthesis
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D
Fermentation
10
Where does the Calvin cycle (light-independent reactions) take place within the chloroplast?
-
A
Thylakoid lumen
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B
Intermembrane space
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C
Stroma
-
D
Granum
11
What is a byproduct of photosynthesis that is essential for most animal life?
-
A
Glucose
-
B
Water
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C
Carbon Dioxide
-
D
Oxygen
12
What are the reactants needed for photosynthesis?
-
A
Glucose and oxygen
-
B
Carbon dioxide and water
-
C
Light and heat
-
D
Nitrogen and minerals
13
Which of the following is NOT a requirement for photosynthesis?
-
A
Sunlight
-
B
Water
-
C
Oxygen
-
D
Carbon Dioxide
14
What is the term for the sugar produced during photosynthesis?
-
A
Fructose
-
B
Sucrose
-
C
Glucose
-
D
Lactose
15
What are the two main stages of photosynthesis?
-
A
Glycolysis and Krebs Cycle
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B
Light-dependent reactions and Light-independent reactions
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C
Fermentation and Aerobic Respiration
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D
Absorption and Translocation
16
What molecule is split during the light-dependent reactions to release electrons and oxygen?
-
A
CO2
-
B
Glucose
-
C
H2O
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D
ATP
17
What is the primary energy-carrying molecule produced during the light-dependent reactions?
-
A
ADP
-
B
NADPH
-
C
ATP
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D
G3P
18
What is the main function of NADPH in photosynthesis?
-
A
To store light energy
-
B
To carry electrons and hydrogen ions
-
C
To release oxygen
-
D
To produce glucose
19
What is the process called when plants release water vapor into the atmosphere?
-
A
Photosynthesis
-
B
Respiration
-
C
Absorption
-
D
Transpiration
20
What type of organisms perform photosynthesis?
-
A
Animals
-
B
Fungi
-
C
Plants and some algae
-
D
Bacteria
21
What color of light is least absorbed by chlorophyll?
-
A
Red
-
B
Blue
-
C
Green
-
D
Yellow
22
What is the source of carbon for glucose synthesis in photosynthesis?
-
A
Water
-
B
Oxygen
-
C
Atmospheric carbon dioxide
-
D
Sunlight
23
How is energy transferred from the light-dependent reactions to the light-independent reactions?
-
A
Through the movement of water
-
B
Via ATP and NADPH
-
C
By releasing oxygen
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D
Through the absorption of CO2
24
What is the overall equation for photosynthesis?
-
A
6CO2 + 6H2O + Light Energy → C6H12O6 + 6O2
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B
C6H12O6 + 6O2 → 6CO2 + 6H2O + Energy
-
C
6O2 + 6H2O + Light Energy → C6H12O6 + 6CO2
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D
C6H12O6 + 6H2O + Light Energy → 6CO2 + 6O2
25
What are the two types of chlorophyll found in plants?
-
A
Alpha and Beta
-
B
Chlorophyll a and Chlorophyll b
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C
Red and Blue
-
D
Primary and Secondary
26
What is the function of the stroma in the chloroplast?
-
A
To absorb light energy
-
B
To conduct the light-dependent reactions
-
C
To house the enzymes for the Calvin cycle
-
D
To store water
27
What is the primary role of accessory pigments in photosynthesis?
-
A
To produce oxygen
-
B
To absorb light energy that chlorophyll cannot
-
C
To transport glucose
-
D
To release carbon dioxide
28
What is the process of converting light energy into chemical energy called?
-
A
Chemosynthesis
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B
Photolysis
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C
Photosynthesis
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D
Respiration
29
Which of the following is a sugar that is a direct product of the Calvin cycle?
-
A
Sucrose
-
B
Starch
-
C
Glyceraldehyde-3-phosphate (G3P)
-
D
Fructose
