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1
What useful product is formed after six turns of the Calvin Cycle?
A)ATP
B)NADPH
C)Glucose
D)AMP
2
Photosynthesis occurs in all cells of a plant.
A)True
B)False
3
Chlorophyll pigments are grouped together in the membranes of _____________.
A)grana
B)thylakoids
C)stroma
D)all of the above
4
A green leaf reflects ___________ of the visible spectrum.
A)green wavelengths
B)all wavelengths except green wavelengths
C)only red and blue wavelengths
D)only yellow and orange wavelengths
5
Molecules that absorb light energy are called ____________.
A)pigments
B)enzymes
C)photosystems
D)photons
6
Plants need light to use ATP to synthesize plant molecules from carbon dioxide in the air.
A)True
B)False
7
Each photosystem consists of many chlorophyll molecules and several reaction centers.
A)True
B)False
8
The starting point of photosynthesis is the _______________.
A)chlorophyll a
B)chlorophyll b
C)stroma
D)photosystem
9
Electrons in pigment molecules become excited when exposed to _____________.
A)photons of light
B)chlorophyll a
C)chlorophyll b
D)carbon dioxide
10
Photosystem I captures the energy that is used to produce the ATP needed to build sugar molecules.
A)True
B)False
11
The photosystems are replenished with electrons obtained by the splitting of _________ molecules.
A)glucose
B)water
C)carbon dioxide
D)chlorophyll
12
About 25% of the radiant energy from the sun that reaches the earth each day is captured by photosynthesis.
A)True
B)False
13
Plants use chlorophyll to absorb primarily the green band of the visible spectrum.
A)True
B)False
14
The process of chemiosmosis is for making molecules of _____________.
A)ATP
B)water
C)carbon dioxide
D)glucose
15
Photorespiration involves the competitive inhibition of the enzyme rubisco, effectively short circuiting the light dependent reactions of photosynthesis.
A)True
B)False
16
A waste product of the light-dependent reactions is _____________.
A)carbon dioxide
B)oxygen
C)water
D)glucose
17
Carbon fixation attaches a carbon atom that was in a gas into an organic molecule.
A)True
B)False
18
C4 photosynthesis involves only light-independent reactions for plants in hot climates.
A)True
B)False
19
Photosynthesis occurs in which of the following?
A)bacteria
B)algae
C)plants
D)all of the above
20
In a high school biology class, students observe that plants grown with a green filter in front of the light source grow better than plants with a red filter in front of the light source. Why is this?
A)plants do not absorb the red wavelengths of light for photosynthesis
B)plants do not absorb the green wavelengths of light for photosynthesis
C)plants reflect the red wavelengths of light during photosynthesis
D)plants cannot reflect light during photosynthesis





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