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WorksheetsPhotosynthesis
Total questions: 15
Worksheet time: 13mins
Name
Class
Date
1.
What type of energy gets electrons "excited" in photosystem II?
a)
Heat energy
b)
Light energy
c)
Electrical energy
d)
Thermal energy
2.
_____ are flattened, saclike membranes that are arranged in stacks in the chloroplast.
a)
Stroma
b)
Chlorophyll
c)
Carotenoids
d)
Thylakoids
3.
Light energy splits water molecules during which part of photosynthesis?
a)
Light-dependent reactions
b)
Light-independent reactions
c)
Calvin cycle
d)
Dark reactions
4.
The rate of photosynthesis decreases when...
a)
carbon dioxide levels rise.
b)
light intensity increases.
c)
stomata close.
d)
oxygen levels drop.
5.
What is the main purpose of the Calvin cycle?
a)
produce oxygen
b)
produce sugar
c)
produce ATP
d)
destruction of carbon dioxide
6.
Which product(s) of the light reactions are used during the dark reactions?
a)
oxygen
b)
carbon dioxide
c)
ATP and NADPH
d)
ADP and NADP+
7.
Which part of a plant is responsible for the majority of photosynthesis?
a)
leaves
b)
stem
c)
roots
d)
stomata
8.
Where is glucose made in plants?
a)
thylakoid
b)
thylakoid membrane
c)
stroma
d)
outside the chloroplast
9.
Where do the light reactions happen in the cell?
a)
stroma
b)
vacuole
c)
outside the chloroplast
d)
thylakoid membrane
10.
What is the chemical formula for glucose?
a)
C2H6O2
b)
C12H12O12
c)
C2H2O2
d)
C6H12O6
11.
The process of the water molecule being split is called
a)
carbon fixation
b)
photolysis
c)
chemiosmosis
d)
Calvin cycle
12.
The electron transport chain starts in
a)
photosystem I
b)
photosystem II
c)
ATP synthase
d)
stroma
13.
A group of accessory pigments responsible for the yellow and orange color in carrots and sweet potatoes are examples of
a)
chlorophyll a
b)
chlorophyll b
c)
chloroplast
d)
carotenoids
14.
An organism that utilizes light energy to create chemical energy to fuel itself is a(n)
a)
autotroph
b)
heterotroph
c)
chlorophyll
d)
human
15.
Which of the following is not a heterotroph?
a)
brown bear
b)
perch
c)
human
d)
oak tree
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