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WorksheetsAP Photosynthesis Review JM
Total questions: 34
Worksheet time: 35mins
Name
Class
Date
1.
Which of the following are products of the light reactions of photosynthesis that are utilized in the Calvin cycle?
a)
CO2 and glucose
b)
H2O and O2
c)
electrons and H+
d)
ATP and NADPH
2.
Where does the Calvin cycle take place?
a)
stroma of the chloroplast
b)
thylakoid membrane
c)
outer membrane of the chloroplast
d)
interior of the thylakoid membrane
3.
When oxygen is released as a result of photosynthesis, it is a direct by-product of
a)
reducing NADP+
b)
splitting water molecules
c)
chemiosmosis
d)
electron transfer in photosystem II and I
4.
Which of the following events occurs in the light reactions of photosynthesis?
a)
NADP+ is produced
b)
ATP is consumed to yield ADP
c)
carbon dioxide is fixed in organic molecules
d)
light is absorbed and funneled to reaction-center chlorophyll a
5.
Which of the following is directly associated with Photosystem I?
a)
harvesting light energy to make ATP
b)
receiving electrons from the thylakoid membrane ETC
c)
generation of molecular oxygen
d)
extraction of hydrogen electrons from the splitting of water
6.
What is the primary function of cyclic electron flow?
a)
to produce additional NADPH
b)
to produce additional ATP
c)
to produce additional oxygen
d)
to produce additional carbon dioxide
7.
Which of the following statements about the relationship between photosynthesis and cellular respiration is true?
a)
In cellular respiration the biochemical pathways
of photosynthesis run in reverse.
b)
In photosynthesis the biochemical pathways of
cellular respiration run in reverse.
c)
Cellular respiration occurs only in animals and
photosynthesis occurs only in plants.
d)
Cellular respiration is catabolic and
photosynthesis is anabolic.
8.
In photosynthetic cells, synthesis of ATP by chemiosmosis occurs during
a)
photosynthesis only
b)
cellular respiration only
c)
both photosynthesis and cellular respiration
d)
photophosphorylation only
9.
What is the relationship between wavelength of light and the quantity of energy per photon?
a)
they have a direct, linear relationship
b)
they are inversely related
c)
they are logarithmically related
d)
they are only related in certain parts of the spectrum
10.
What is the primary function of the Calvin cycle?
a)
regenerate
ATP for use in the light reactions of photosynthesis
b)
produce carbon dioxide for use in the light
reactions of photosynthesis
c)
produce oxygen by oxidizing water
d)
produce simple sugars from carbon dioxide
11.
In C3 photosynthesis, the reactions that require ATP take place in
a)
the light reactions alone
b)
the calvin cycle only
c)
both the light reactions and the calvin cycle
d)
the citric acid cycle
12.
Reactions that consume CO2 take place in
a)
the light reactions of photosynthesis only
b)
the calvin cycle only
c)
the light reactions and the calvin cycle
d)
the calvin cycle and the citric acid cycle
13.
CAM plants keep stomata closed in daytime, thus reducing loss of water. They can do this because they
a)
fix CO2 into
organic acids during the night when temperatures are cooler.
b)
fix CO2 into by
combining it with RuBP in the Calvin cycle.
c)
obtain CO2 through their roots during the day.
d)
fix
CO2 into organic acids in the mesophyll cells,
which do not rely on stomata.
14.
Compared to C3 plants, C4 plants
a)
) have higher rates of photorespiration.
b)
can
continue to fix CO2 even at relatively low CO2 concentrations and high oxygen concentrations.
c)
do not use rubisco for carbon fixation.
d)
grow better under cool, moist conditions.
15.
In chemiosmosis in mitochondria, protons flow from the intermembrane space into the matrix, whereas in chemiosmosis in chloroplasts, protons flow from
a)
stroma into the cytosol
b)
stroma to the thylakoid space
c)
thylakoid space to the stroma
d)
intermembrane space to the stroma
16.
In mitochondria, the electron transport chain pumps protons from the matrix into the intermembrane space, whereas in chloroplasts, the electron transport chain pumps protons from
a)
matrix to stroma
b)
stroma to thylakoid space
c)
intermembrane space to stroma
d)
thylakoid space to stroma
17.
If an aquatic plant is placed into a test tube with water near a light source, what will it produce?
a)
Glucose and Oxygen
b)
Carbon dioxide and ATP
c)
Water and Oxygen
d)
Glucose and ATP
18.
Most plants appear green because chlorophyll
a)
absorbs green light.
b)
absorbs violet light.
c)
does not absorb green light.
d)
does not absorb violet light.
19.
Which of the following molecules is not needed for the Calvin Cycle?
a)
CO2
b)
ATP
c)
NADPH
d)
H2O
20.
The enzyme responsible for Carbon Fixation in C3 Photosynthesis is
a)
RuBisCo
b)
PEP Carboxylase
c)
Hexokinase
d)
Pyruvate DeHydrogenase
21.
Plants with the largest amount of which pigment will be best suited for growing conditions where light has a green hue.
a)
Chlorophyll A
b)
Chlorophyll B
c)
Carotenoids
d)
A combination of all 3
22.
Which pigment is most efficient at higher energy areas of the electromagnetic spectrum?
a)
Chlorophyll A
b)
Chlorophyll B
c)
Carotenoids
d)
No pigment is efficient at high energies
23.
At which location are electrons energized and added to NADP+ ?
a)
Photosystem 1
b)
Photosystem 2
c)
Calvin Cycle
d)
ATP Synthase
24.
What supplies the electrons that are lost in PS I?
a)
the electrons from PS II
b)
water
c)
glucose
d)
oxygen
25.
How is a molecule oxidized?
a)
Electrons are added to the molecule
b)
Electrons are taken from the molecule
c)
Electrons are shared with the molecule
d)
Protons are added to the molecule
26.
How is a molecule reduced?
a)
electrons are given to the molecule
b)
electrons are taken from the molecule
c)
money is taken from the molecule
d)
protons are given to the molecule
27.
Which statement describes the functioning of photosystem II?
a)
Light energy excites electrons in the thylakoid membrane electron transport chain.
b)
Photons are passed along to a reaction�center chlorophyll.
c)
The P680 chlorophyll donates a pair of protons to NADP+, which is thus converted to NADPH.
d)
The electron vacancies in P680+ are filled by electrons derived from water.
28.
The accumulation of free oxygen in Earth's atmosphere began
a)
with the origin of life and respiratory metabolism.
b)
with the origin of photosynthetic bacteria that had photosystem I.
c)
with the origin of cyanobacteria that had both photosystem I and photosystem II.
d)
with the origin of chloroplasts in photosynthetic eukaryotic algae.
29.
Why are C4 plants able to photosynthesize with no apparent photorespiration?
a)
They do not participate in the Calvin cycle.
b)
They use PEP carboxylase to initially fix CO2.
c)
They are adapted to cold, wet climates.
d)
They conserve water more efficiently.
30.
CAM plants keep stomata closed in daytime, thus reducing loss of water. They can do this because they
a)
fix CO2 into organic acids during the night.
b)
fix CO2 into sugars in the bundle�sheath cells.
c)
fix CO2 into pyruvate in the mesophyll cells.
d)
use photosystem I and photosystem II at night.
31.
Where do the light-dependent reactions occur?
a)
thylakoid membrane
b)
stroma
c)
mesophyll
d)
mitochondria
32.
It is important to create a concentration of H+ in the thylakoid space so that the H+ can diffuse through_________ to create ______.
a)
ATP synthase, ATP
b)
NADH, NADPH
c)
proton pump, protons
33.
Which plant structure is extremely necessary for photosynthesis to take place?
a)
leaves
b)
flower petals
c)
anthers
d)
pistils
34.
Which of the following is the correct equation for PHOTOSYNTHESIS?
a)
6CO2 + 6H2O --> 6O2 + C6H12O6
b)
6CO2 + C6H12O6 + 6H2O --> O2
c)
6O2 + 6H2O --> 6CO2 + C6H12O6
d)
C6H12O6 + 6O2 ---> 6H2O + 6CO2
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