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Photosynthesis Review

Total questions: 144

Worksheet time: 3hrs 39mins

Name
Class
Date
1.
What is the primary function of the light reactions of photosynthesis?
a)
To produce glucose
b)
To produce NADPH and ATP
c)
To use ATP
d)
To produce RuBP
2.
What supplies the electrons that are lost in PS I?
a)
the electrons from PS II
b)
water
c)
glucose
d)
oxygen
3.
What is the function of NADP+?
a)
It absorbs light
b)
It is an electron carrier
c)
It is a light-reflecting pigment
d)
It acts as long-term energy storage
4.
Which of the following molecules is not needed for the Calvin Cycle?
a)
CO2
b)
ATP
c)
NADPH
d)
H2O
5.
Green plants reflect ________ light.
a)
Red
b)
Green
c)
All
d)
Red and Violet
6.
The light reactions occur in the ________ and the dark reactions take place in the ________.
a)
Chloroplast / thylakoid membrane
b)
stroma / thylakoid
c)
mesophyl / stomata
d)
thylakoid membrane / stroma
7.
Where does the carbon come from that is used to form glucose?
a)
The soil
b)
CO2 in the air
c)
From other carbohydrates
d)
Calvin Cycle
8.
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
9.
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
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.

How many 6-carbon sugar molecules are produced from every six molecules of carbon dioxide that enter the Calvin cycle?

a)

1

b)

3

c)

6

d)

12

12.

The H+ concentration gradient is formed to

a)

make NADPH

b)

split a water molecule

c)

generate ATP

d)

form water

13.

Rubisco is important in which step of photosynthesis

a)

energizing the electrons in chlorophyll

b)

carbon fixation when CO2 is connected to RUBP during calvin cycle

c)

regeneration phase as RUBP is made during calvin cycle

d)

reduction of the carbon chain during the calvin cycle

14.

If the proton (H+) pump in the thylakoid was not working which molecule could not be made during the light reaction?

a)

NADPH

b)

ATP

c)

Water

d)

Oxygen gas

15.

Which of the following would have the least affect on photosynthetic rate?

a)

increase the temp from 20°C to 30°C

b)

increasing the CO2 from 400 ppm to 600ppm

c)

increasing the light intesity from 40 Watts to 60 Watts

d)

increasing the amount of O2 from 20% to 30% in the air

16.

Plants obtain CO2 into the chloroplast by

a)

active transport

b)

diffusion

c)

facilitated diffusion

d)

endocytosis

17.

ATP is made during the light reaction using all of the following EXCEPT

a)

proton pump

b)

hydrogen ion gradient

c)

electron energy from photosystem II

d)

NADPH donating electrons

18.

During noncyclic photophosphorylation all of the following occur EXCEPT

a)

ATP is made using electron energy that will leave on NADPH

b)

results in oxygen gas being produced

c)

water is split (photolysis)

d)

electrons from photosystem 1 return back to photosystem 1

19.

Predict which of the following plants would have the most oxygen produced in 1 hour?

a)

A plant given red light only

b)

A plant given blue light only

c)

A plant given white light

d)

A plant given green light only

20.

Where does the oxygen produced in the light dependent reactions of photosynthesis come from?

a)

chlorophyll

b)

carbon dioxide

c)

the atmosphere

d)

water

21.

What is the primary source of energy for life on Earth?

a)

Wind energy

b)

Solar energy

c)

Geothermal energy

d)

Nuclear energy

22.

Where does photosynthesis occur in plant cells?

a)

Mitochondria

b)

Nucleus

c)

Chloroplasts

d)

Ribosomes

23.

What are autotrophs?

a)

Organisms that consume other organisms for energy

b)

Organisms that produce their own food

c)

Organisms that decompose organic material

d)

Organisms that rely on sunlight for warmth

24.

Through which structures do gases enter and exit a leaf?

a)

Veins

b)

Mesophyll

c)

Stomata

d)

Epidermis

25.

What is the fluid inside the chloroplast called?

a)

Cytoplasm

b)

Matrix

c)

Stroma

d)

Plasma

26.

What are thylakoids?

a)

Fluid inside the chloroplast

b)

Stacks of membranous sacs

c)

Outer membrane of the chloroplast

d)

Type of chlorophyll

27.

Where is chlorophyll located within the chloroplast?

a)

Stroma

b)

Thylakoids

c)

Outer membrane

d)

Intermembrane space

28.

What are the products of photosynthesis?

a)

CO2 and H2O

b)

Organic molecules and O2

c)

ATP and heat energy

d)

Light energy and ATP

29.

In the process of photosynthesis, what happens to CO₂?

a)

It is oxidized to form O₂

b)

It gains electrons and is reduced to form C₆H₁₂O₆

c)

It loses electrons and is oxidized to form C₆H₁₂O₆

d)

It gains electrons and is oxidized to form O₂

30.

During photosynthesis, what happens to H₂O?

a)

It gains electrons and is reduced to form O₂

b)

It loses electrons and is oxidized to form O₂

c)

It gains electrons and is oxidized to form C₆H₁₂O₆

d)

It loses electrons and is reduced to form C₆H₁₂O₆

31.

Which of the following is produced during the light reactions of photosynthesis?

a)

Glucose

b)

NADPH

c)

Carbon dioxide

d)

Pyruvate

32.

What molecule is used along with light energy in the light reactions?

a)

CO₂

b)

O₂

c)

H₂O

d)

Glucose

33.

Which of the following is NOT required for the Calvin Cycle to occur?

a)

ATP

b)

NADPH

c)

Light

d)

CO₂

34.

What is produced by the Calvin Cycle?

a)

Oxygen (O₂)

b)

Sugars (C₆H₁₂O₆)

c)

Water (H₂O)

d)

Carbon dioxide (CO₂)

35.

What is the role of pigments in photosynthesis?

a)

They reflect all light.

b)

They absorb and reflect light, appearing a certain color.

c)

They only absorb light.

d)

They convert light directly into oxygen.

36.

Which colors of light does chlorophyll a mostly reflect?

a)

Violet and blue

b)

Red and orange

c)

Green and yellow

d)

Blue and red

37.

What happens to electrons when a pigment absorbs a photon?

a)

They are excited to a higher energy level.

b)

They are absorbed by the nucleus.

c)

They are converted into protons.

d)

They remain in the ground state.

38.

What occurs when an excited electron falls back to its ground state?

a)

It absorbs energy.

b)

It releases energy.

c)

It becomes a photon.

d)

It splits into two electrons.

39.

What are photosystems?

a)

Light-capturing units of proteins and pigments

b)

Energy storage molecules

c)

Enzymes for cellular respiration

d)

DNA replication sites

40.

Where are photosystems located?

a)

In the nucleus of the cell

b)

In the thylakoid membrane of chloroplasts

c)

In the cytoplasm

d)

In the cell wall

41.

What happens when a photon strikes pigments in light-harvesting complexes during the light reactions?

a)

The photon is absorbed and stored as chemical energy.

b)

The photon excites an electron, which then falls back and releases energy.

c)

The photon is reflected back into the environment.

d)

The photon is converted into heat energy.

42.

What happens to the excited electron in the light reactions of photosynthesis?

a)

It is transferred to the primary electron acceptor.

b)

It is absorbed by water molecules.

c)

It is converted into ATP.

d)

It is released as oxygen.

43.

After electrons are removed from the chlorophyll molecules in Photosystem II, how are they replaced?

a)

By breaking down water molecules

b)

Through the oxidation of NADPH

c)

From the ETC before Photosystem I

d)

Through the reduction of ATP

44.

After electrons are removed from the chlorophyll molecules in Photosystem I, how are they replaced?

a)

By breaking down water molecules

b)

Through the oxidation of NADPH

c)

From the ETC before Photosystem I

d)

Through the reduction of ATP

45.

What is the purpose of the ETC between Photosystem II and Photosystem I?

a)

To pump additional H+ into the stroma

b)

To move electrons from Photosystem I to Photosystem II

c)

To build up a higher concentration of H+ in the thylakoids

d)

To reduce NADP+ into NADPH

46.

What is the purpose of the short ETC after Photosystem I?

a)

To pump additional H+ into the stroma

b)

To move electrons from Photosystem I to Photosystem II

c)

To build up a higher concentration of H+ in the thylakoids

d)

To reduce NADP+ into NADPH

47.

Similar to cellular respiration, the H+ gradient created by the light reactions is used to _____.

a)

Reduce NADP+ into NADPH

b)

Combine electrons, H+, and oxygen to create water

c)

Oxidize water into e-, H+, and oxygen

d)

Create ATP with ATP synthase

48.

During which phase of the Calvin cycle is inorganic carbon dioxide combined to an existing organic sugar (RuBP) in the chloroplast?

a)

Carbon fixation

b)

Reduction

c)

Regeneration

49.

During which phase of the Calvin cycle do several 3-carbon sugars receive inorganic phosphates from ATP and electrons and H+ from NADPH to create G3P molecules?

a)

Carbon fixation

b)

Reduction

c)

Regeneration

50.

During which phase of the Calvin cycle are several G3P molecules converted back into RuBP sugars?

a)

Carbon fixation

b)

Reduction

c)

Regeneration

51.

How many times must the whole Calvin cycle occur in order to create 1 glucose molecule?

a)

Once

b)

Twice

c)

Three times

d)

Six times

52.

Which type of plant has a two-step carbon fixation process based on the time of day? They only open their stomata at night to absorb carbon dioxide.

a)

C3 plants

b)

C4 plants

c)

CAM plants

53.
What is the ultimate ORIGINAL source of energy for living things
a)
Sugar
b)
Sun
c)
Moon
d)
Carbon Dioxide
54.
Which of the following is NOT a product of the light reactions?
a)
ATP
b)
NADPH
c)
Oxygen
d)
Glucose
55.

Which substance from the light-dependent reactions of photosynthesis is a source of energy for the light-independent (Calvin) reactions?

a)

ADP

b)

H2O

c)

NADPH

d)

pyruvic acid

56.
What is the purpose of splitting water in PS2 of the light dependent reaction?
a)
Provides e- for PS2 and H+ for the thylakoid space
b)
To produce Oxygen for animals
c)
There is no purpose
57.
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
58.
Where do the light reactions happen?
a)
mitochondria membrane
b)
thylakoid membrane
c)
stroma
d)
central vacuole
59.
According to this absorption spectrum, what color is not used by the chlorophyll pigments?
a)
green
b)
blue
c)
yellow
d)
red
60.
The interior space of the chloroplast is called:
a)
Lamellae
b)
Grana
c)
Stroma
d)
Thylakoids
61.
Use the diagram to answer the question. Between which parts of the molecule must the bonds be broken to form an ADP molecule?
a)
A and B
b)
A and C
c)
B and C
d)
C and D
62.
When carbon first enters the Calvin cycle, what molecule does it combine with? 
a)
PGA
b)
G3P
c)
RuBP
d)
ATP
63.
What is the name of the enzyme that fixes carbon in photosynthesis?
a)
Rubisco
b)
NADPH reductase
c)
Carbon Fixase
d)
Calvinase
64.
What is the product of the Calvin Cycle?
a)
Rubisco
b)
Glyceraldehyde 3-Phosphate (G3P)
c)
Oxygen
d)
Starch
65.
How many carbons does G3P have?
a)
1
b)
2
c)
3
d)
6
66.
Where do the light-independent reactions occur?
a)
thylakoid
b)
stroma
c)
lumen
d)
mitochondria
67.
Which of the following is NOT a reactant of the dark reactions?
a)
NADPH
b)
ATP
c)
Oxygen
d)
Carbon dioxide
68.
Which of the following are products of the light reactions of photosynthesis that are utilized in the Calvin Cycle?
a)
CO2 and glucose
b)
ATP and NADPH
c)
ADP, P and NADP+
d)
H2Oand O2
69.
Where does the Calvin cycle take place?
a)
Stroma
b)
thylakoid
c)
thylakoid space
d)
matrix
70.
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 1
71.
Which of the following processes is most directly driven by light energy?
a)
carbon fixation in stroma
b)
reduction of NADP molecules
c)
ATP Synthesis
d)
removal of electrons from membrane-bound chlorophyll molecules
72.
What is the primary function of the light reactions of photosynthesis?
a)
To produce glucose
b)
To produce NADPH and ATP
c)
To use ATP
d)
To produce RuBP
73.
What supplies the electrons that are lost in PS I?
a)
the electrons from PS II
b)
water
c)
glucose
d)
oxygen
74.
The light reactions occur in the ________ and the dark reactions take place in the ________.
a)
Chloroplast / thylakoid membrane
b)
stroma / thylakoid
c)
mesophyl / stomata
d)
thylakoid membrane / stroma
75.
Where does the carbon come from that is used to form glucose?
a)
The soil
b)
CO2 in the air
c)
From other carbohydrates
d)
Calvin Cycle
76.
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
77.

The H+ concentration gradient is formed to

a)

make NADPH

b)

split a water molecule

c)

generate ATP

d)

form water

78.

Rubisco is important in which step of photosynthesis

a)

energizing the electrons in chlorophyll

b)

carbon fixation when CO2 is connected to RUBP during calvin cycle

c)

regeneration phase as RUBP is made during calvin cycle

d)

reduction of the carbon chain during the calvin cycle

79.

If the proton (H+) pump in the thylakoid was not working which molecule could not be made during the light reaction?

a)

NADPH

b)

ATP

c)

Water

d)

Oxygen gas

80.

ATP is made during the light reaction using all of the following EXCEPT

a)

proton pump

b)

hydrogen ion gradient

c)

electron energy from photosystem II

d)

NADPH donating electrons

81.
An _____  can make its own food, while a _____ cannot make its own food.
a)
Autotroph, Heterotroph 
b)
Heterotroph, Autotroph
c)
Chlorophyll, Chloroplast 
82.
Endergonic reactions require:
a)
an input of energy
b)
a release of energy
c)
do not change energy
83.
Where is the most easily accessible energy stored in an ATP molecule?
a)
between the 1st and 2nd phosphate groups
b)
between the adenine and ribose groups
c)
between the 2nd and 3rd phosphate groups
d)
between the ribose and the 1st phosphate groups
84.
The process of using electrons to pump H+ to create an electrochemical gradient that must flow through a protein is called:
a)
Chemiosmosis
b)
Fantasia
c)
Induced Fit
d)
Electrolysis
85.

_________________ are the products of the light-dependent reactions.

a)

chloroplast and light

b)

water and sugars

c)

ATP, NADPH and OXYGEN

86.

The electrons travel though the ___________, a series of electron carrier proteins.

a)

stroma

b)

electron transport chain

c)

chloroplasts

87.

ATP Synthase is a membrane protein, through which excess __________ escape the thylakoid in a process that makes ATP.

a)

water ions

b)

NADPH ions

c)

Hydrogen ions

88.

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 land plants

89.

A molecule that has been phosphorylated

a)

has a decreased chemical reactivity; it is less likely to provide energy for cellular work

b)

has been oxidized as a result of a redox reaction involving the gain of an inorganic phosphate.

c)

has an increased chemical potential energy; it is primed to do cellular work.

d)

has less energy than before its phosphorylation and therefore less energy for cellular work.

90.

A student does an experiment to measure the rate of photosynthesis of spinach leaf disks. She decides to compare different colors of water to see if they affect the rate. Which color would you expect to have the highest rate of photosynthesis based on your knowledge of light and photosynthesis?

a)

Green

b)

Blue

c)

Red

d)

Clear

91.

The graph shows the absorption spectrum for chlorophyll a and the action spectrum for photosynthesis. Based on the information in the graph, which wavelengths lead to the least absorbance?

a)

400-500

b)

500-600

c)

600-700

d)

700-750

92.

Which wavelength of light in the figure is most effective for absorbance of chlorophyll a?

a)

400 nm

b)

450 nm

c)

600 nm

d)

675 nm

93.

During photosynthesis, electrons travel downhill in which sequence?

a)

food → NADH → electron transport chain → oxygen

b)

glucose → pyruvate → ATP → oxygen

c)

water → photosystem II → electron transport chain → NADPH

d)

light → electron transport chain → chlorophyll --> ATP

94.

Where are the proteins of the electron transport chain used in photosynthesis located?

a)

thylakoid membrane

b)

stroma

c)

chloroplast outer membrane

95.

The primary role of water in photosynthesis is to

a)

act as an acceptor for electrons and hydrogen, forming water.

b)

Be split and act as a source of electrons.

c)

combine with carbon, forming CO2.

d)

combine with lactate, forming NADPH.

96.

Assume a thylakoid is somehow punctured so that the interior of the thylakoid is no longer separated from the stroma. This damage will have the most direct effect on which of the following processes?

a)

the splitting of water

b)

the flow of electrons from photosystem II to photosystem I

c)

the synthesis of ATP

d)

the reduction of NADP+

97.

To test the hypothesis that a particular plant synthesizes storage lipids by using G3P from photosynthesis, a researcher plans to use radiolabeled precursors to track the molecules through the biosynthetic pathway. Which of the following radiolabeled precursors is most appropriate for the research to use?

a)

15Nitrogen-labeled N2, because atmosphere nitrogen is fixed to amino acids by photosynthesis.

b)

14Carbon-labeled CO2, because atmosphere carbon is fixed to carbohydrates by photosynthesis.

c)

35Sulfur-labeled methionine, because amino acids are incorporated into lipids during photosynthesis.

d)

32Phosphorous-labeled phosphate, because lipids are stored in plants as phospholipids.

98.
Green plants reflect ________ light.
a)
Red
b)
Green
c)
All
d)
Red and Violet
99.

A stack of thylakoids is called:

a)

Granum

b)

Stomata

c)

Stroma

d)

Chloroplast

100.

The light reactions occur in the ________ and the light-independent reactions take place in the ________.

a)
Chloroplast / thylakoid membrane
b)
stroma / thylakoid
c)
mesophyl / stomata
d)
thylakoid membrane / stroma
101.
What is represented by "E" in this image?
a)

RuBP

b)
NADPH
c)

3-PGA

d)

GP3

102.
This image shows the process of _____.
a)
Respiration
b)
Photosystem I
c)
Dark Reactions
d)
Photosynthesis
103.

Where is glucose synthesized?

a)
Photosystem II
b)
Photosystem I
c)
Calvin Cycle
d)
Glycolysis
104.
Organisms, such as plants, that make their own food are called
a)
autotrophs
b)
heterotrophs.
c)
thylakoids.
d)
pigments.
105.
What are the products of photosynthesis?
a)
Carbon dioxide and water
b)
Carbon dioxide and oxygen
c)
Glucose and oxygen
d)
Glucose and water
106.
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 
107.
Which of the following is NOT a product of the light reactions?
a)
ATP
b)
NADPH
c)
Oxygen
d)
Glucose
108.

Which substance from the light-dependent reactions of photosynthesis is a source of energy for the light-independent (Calvin) reactions?

a)

ADP

b)

H2O

c)

NADPH

d)

pyruvic acid

109.
What is the purpose of splitting water in PS2 of the light dependent reaction?
a)
Provides e- for PS2 and H+ for the thylakoid space
b)
To produce Oxygen for animals
c)
There is no purpose
110.
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
111.
Where do the light reactions happen?
a)
mitochondria membrane
b)
thylakoid membrane
c)
stroma
d)
central vacuole
112.
According to this absorption spectrum, what color is not used by the chlorophyll pigments?
a)
green
b)
blue
c)
yellow
d)
red
113.

The interior liquid space of the chloroplast is called:

a)
Lamellae
b)
Grana
c)
Stroma
d)
Thylakoids
114.
What is the name of the enzyme that fixes carbon in photosynthesis?
a)
Rubisco
b)
NADPH reductase
c)
Carbon Fixase
d)
Calvinase
115.
Where do the light-independent reactions occur?
a)
thylakoid
b)
stroma
c)
lumen
d)
mitochondria
116.
Which of the following is NOT a reactant of the dark reactions?
a)
NADPH
b)
ATP
c)
Oxygen
d)
Carbon dioxide
117.
What is the primary function of the light reactions of photosynthesis?
a)
To produce glucose
b)
To produce NADPH and ATP
c)
To use ATP
d)
To produce RuBP
118.
What is the function of NADP+?
a)
It absorbs light
b)

It is an electron carrier and is reduced to form NADPH

c)
It is a light-reflecting pigment
d)
It acts as long-term energy storage
119.

The splitting/breaking of water

a)

occurs during Cellular Respiration

b)

is called hydrolysis

c)

produces oxygen, electrons and hydrogens

d)

occurs during fermentation

120.

Carbon fixation

a)

is part of the Krebs Cycle

b)

is part of the Calvin Cycle

c)

is part of the ETC

d)

is part of the Light Reactions

121.

Electrons become energized during photosynthesis when

a)

they are absorbed by water

b)

they undergo carbon fixation

c)

they absorb light energy

d)

they are incorporated into oxygen

122.
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
123.
Which of the following statements best represents the relationships between the light reactions and the Calvin cycle?
a)

The light reactions provide ATP and NADPH to the Calvin cycle, and the Calvin cycle returns ADP, P(i), and NADP+ to the light reactions.

b)
The light reactions provide ATP and NADPH to the carbon fixation step of the Calvin cycle, and the Calvin cycle provides water and electrons to the light reactions.
c)
The light reactions supply the Calvin cycle with CO2 to produce sugars, and the Calvin cycle supplies the light reactions with sugars to produce ATP.
d)
The light reactions provide the Calvin cycle with oxygen for carbon fixation, and the Calvin cycle provides the light reactions with sugars to produce ATP.
124.
During which phase of photosynthesis is O2 created?
a)
Light dependent reactions
b)
Calvin Cycle
c)
Citric Acid Cycle
d)
Glycolysis
125.
Which of the following molecules is not needed for the Calvin Cycle?
a)
CO2
b)
ATP
c)
NADPH
d)
H2O
126.
Cyclic electron flow in the cloroplast produces________
a)
ATP
b)
NADPH
c)
both ATP and NADPH
d)
glucose
127.

True or False: The light reactions of Photosynthesis requires ATP.

a)

True

b)

False

128.

An organic product of photosynthesis is:

a)

oxygen

b)

Sugar

c)

Water

d)

Carbon dioxide

e)

NADPH

129.

A waste product released by photosynthesis is:

a)

Oxygen

b)

Sugar

c)

Water

d)

Carbon dioxide

e)

NADPH

130.

A reactant of photosynthesis is:

a)

Chlorophyll

b)

Sugar

c)

Water

d)

Thylakoid membrane

e)

NADPH

131.

Site of light independent reactions:

a)

Chlorophyll

b)

Stomate

c)

Stroma

d)

Thylakoid membrane

e)

Matrix

132.

The site of light dependent reactions is

a)

Chlorophyll

b)

Stomate

c)

Stroma

d)

Thylakoid membrane

e)

Matrix

133.

The molecule that absorbs solar energy is:

a)

Chlorophyll

b)

NADPH

c)

Stroma

d)

Thylakoid membrane

e)

Matrix

134.

In the dark reactions of photosynthesis

a)

3-PGA is synthesized

b)

Water is split

c)

Oxygen is produced

d)

ATP is synthesized

e)

Two answers are correct

135.

Each is a product of the light dependent reactions EXCEPT

a)

NADPH

b)

ATP

c)

Oxygen

d)

Sugar

136.

Photosynthesis occurs best at wavelengths that are

a)

red and blue

b)

green and yellow

c)

infra red and gamma

d)

ultra violet and micro

137.

When a molecule is reduced (select all that apply)

a)

it gains electrons

b)

it loses electrons

c)

it stores energy

d)

its oxidation number increases

138.

What uses CO2 ?

a)

Cyclic photophosphorylation

b)

Noncyclic photophosphorylation

c)

Both light reactions

d)

Calvin cycle (dark reactions)

e)

Both light and dark reactions

139.

The production of NADPH occurs in:

a)

Cyclic photophosphorylation

b)

Noncyclic photophosphorylation

c)

Both light reactions

d)

Calvin cycle (dark reactions)

e)

Both light and dark reactions

140.

The production of NADP+ occurs in:

a)

Cyclic photophosphorylation

b)

Noncyclic photophosphorylation

c)

Both light reactions

d)

Calvin cycle (dark reactions)

e)

Both light and dark reactions

141.

The splitting of water occurs in:

a)

Cyclic photophosphorylation

b)

Noncyclic photophosphorylation

c)

Both light reactions

d)

Calvin cycle (dark reactions)

e)

Both light and dark reactions

142.

What is represented by "C" in this image?

a)

ATP

b)

NADPH

c)

Oxygen

d)

Glucose

143.

What is represented by "D" in this image?

a)

ATP

b)

NADPH

c)

Oxygen

d)

Carbon dioxide

144.

The splitting of water occurs in:

a)

Cyclic photophosphorylation

b)

Noncyclic photophosphorylation

c)

Both light reactions

d)

Calvin cycle (dark reactions)

e)

Both light and dark reactions

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