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G6 PLANTS AND PHOTOSYNTHESIS

Total questions: 130

Worksheet time: 2hrs 10mins

Name
Class
Date
1.
What is the pigment in chloroplasts that performs photosynthesis?
a)
Chlorosynthesis
b)
Chlorophyll
c)
ADP
d)
Electron Transport
2.
The stacks of disks in the chloroplast are called:
a)
Lamellae
b)
Grana
c)
Stroma
d)
Thylakoid
3.
The interior space of the chloroplast is called:
a)
Lamellae
b)
Grana
c)
Stroma
d)
Thylakoids
4.
Where does the light independent reaction take place?
a)
Matrix
b)
Stroma
c)
Thylakoid membrane
d)
Cytoplasm
5.
What reactants are needed for the Calvin cycle?
a)
Carbon dioxide
b)

Carbon dioxide, ATP and NADPH

c)
Carbon dioxide and glucose
d)
Oxygen and water
6.
Where do the light reactions happen?
a)
mitochondria membrane
b)
thylakoid membrane
c)
stroma
d)
central vacuole
7.
What are the two products of the light reactions that are needed for the calvin cycle?
a)
NAD and NADPH
b)
NADP + and Glucose
c)
NADPH and ATP
d)
Oxygen and NADPH
8.

Which of the following equations represents the overall chemical reaction for photosynthesis?

a)

6O2+ 6H2O → C6H12O6+ 6O2

b)

C6H12O6 + 6H2O→ 6O2+ 6O2

c)

6CO2+ 6H2O→ C6H12O6+ 6O2

d)

6O2 + 6H2O→ C6H12O6 + 6CO2

9.
What happens to the O2 created in the light phase?
a)
Is transferred to the Calvin Cycle
b)
Donates its electrons to the Chlorophyll molecules
c)
Provides a carbon to form the unstable 6-carbon molecule
d)
Diffuses out through the stoma
10.
Water is split during
a)

photophosphorylation

b)

photolysis

c)
calvin cycle
d)
cell respiration
11.

The rate of photosynthesis can be influenced by...

a)

Temperature

b)

Carbon dioxide levels

c)

Light intensity

d)

Oxygen concentration

12.

Which of the following is true of the Calvin Cycle?

a)

carbon dioxide and energy (ATP and NADPH) are used to make organic compounds

b)

energy is absorbed from sunlight and converted to chemical energy stored in ATP and NADPH

c)

Occurs in the thylakoid

d)

Occurs in the cytoplasm

13.

Temperatures that are too high can slow photosynthesis because

a)

stomata stay open

b)

enzymes are ruined

c)

there is not enough CO2

d)

there is too much water

14.
Which of the following molecules is not needed for the Calvin Cycle?
a)
CO2
b)
ATP
c)
NADPH
d)
H2O
15.
Which of the following is the correct equation for PHOTOSYNTHESIS?
a)
CO2 + light + H2O --> O2 + Sugar
b)
CO2 + sugar + H2O --> O2 + light
c)
O2 + light + H2O --> CO2 + Sugar
d)
CO2 + O2 + H2O --> Light+ Sugar
16.
The process whereby plants capture energy and make complex molecules is
a)
chemosynthesis
b)
cell respiration
c)
photosynthesis
d)
homeostasis
17.

Which organelle is responsible making food (Glucose) using sunlight?

a)

Cell Membrane

b)

Nucleus

c)

Chloroplast

d)

Mitochondria

18.
Which of the following is the correct equation for PHOTOSYNTHESIS?
a)
CO2 + light + H2O --> O2 + Sugar
b)
CO2 + sugar + H2O --> O2 + light
c)
O2 + light + H2O --> CO2 + Sugar
d)
CO2 + O2 + H2O --> Light+ Sugar
19.
Which of the following is the correct equation for PHOTOSYNTHESIS?
a)
CO2 + light + H2O --> O2 + Sugar
b)
CO2 + sugar + H2O --> O2 + light
c)
O2 + light + H2O --> CO2 + Sugar
d)
CO2 + O2 + H2O --> Light+ Sugar
20.
What are the two products of the light reactions that are needed for the calvin cycle?
a)
NAD and NADPH
b)
NADP + and Glucose
c)
NADPH and ATP
d)
Oxygen and NADPH
21.

Select all that are raw materials for Photosynthesis.

a)

Water

b)

Carbon Dioxide

c)

Oxygen

d)

Sunlight (Light Energy)

e)

Glucose (Sugar/food)

22.

Select all that are products of Photosynthesis.

a)

Water

b)

Carbon Dioxide

c)

Oxygen

d)

Sunlight (Light Energy)

e)

Glucose (Sugar/food)

23.
Which choice correctly shows the gases that enter and exit plants during photosynthesis?
a)
Enter: Oxygen
Exit: Carbon dioxide
b)
Enter: Water vapor
Exit: Glucose
c)
Enter: Carbon dioxide
Exit: Oxygen
d)
Enter: Light
Exit: Water vapor
24.
Which of the following is an example of an AUTOTROPH?
a)
Appletree
b)
Dog
c)
Mushroom
d)
Human
25.
What is the ultimate ORIGINAL source of energy for living things
a)
Sugar
b)
Sun
c)
Moon
d)
Carbon Dioxide
26.

What is the pigment in chloroplasts that performs photosynthesis?

a)

Chlorosynthesis

b)

Chlorophyll

c)

Chloroplast

d)

Green

27.
Plants need ________ for photosynthesis
a)
oxygen
b)
soil
c)
carbon dioxide
d)
sugar
28.
The ____________ is the most photosynthetic part of a plant.
a)
leaf
b)
flower
c)
roots
d)
stem
29.
Leaves look green because.....
a)
they eat their vegetables
b)
to blend into their environment
c)
they contain a molecule named chlorophyll
d)
they are sick
30.
Glucose is a ...
a)
sugar
b)
carbohydrate
c)
source of quick energy
d)
all are correct
31.
The formula for glucose is...
a)
C12 H22 O11
b)
NaCl
c)
NaOH
d)
C6 H12 O6
32.

What role does NADPH play in cellular respiration

a)

It is long term energy storage

b)

it is a high-energy hydrogen carrier

c)

it breaks down glucose

d)

it is an enzyme

33.

what are the products of the light reactions

a)

thylakoid

b)

oxygen

c)

ATP

d)

NADPH

34.

what are the inputs of the calvin cycle?

a)

NADPH

b)

ATP

c)

CO2

d)

H2O

e)

chlorophyll

35.
What is photosynthesis?
a)
The process in which humans eat their food
b)
When a photographer takes a photo.
c)
To get your pictures from the photo lab.
d)
The process in which plants make their food.
36.
Which organisms perform Photosynthesis?
a)
Only Autotrophs
b)
Only Heterotrophs
c)
Autotrophs and Heterotrophs
37.
Which of the following is the correct equation for PHOTOSYNTHESIS?
a)
CO2 + light + H2O --> O2 + Sugar
b)
CO2 + sugar + H2O --> O2 + light
c)
O2 + light + H2O --> CO2 + Sugar
d)
CO2 + O2 + H2O --> Light+ Sugar
38.
Which organelle performs PHOTOSYNTHESIS?
a)
Chloroplast
b)
Mitochondria
39.
What is the pigment in chloroplasts that performs photosynthesis?
a)
Chlorosynthesis
b)
Chlorophyll
c)
ADP
d)
Electron Transport
40.
What is the ultimate ORIGINAL source of energy for living things
a)
Sugar
b)
Sun
c)
Moon
d)
Carbon Dioxide
41.
What do plants need for the photosynthesis process?
a)
a camera and tripod
b)
light, carbon dioxide, and water
c)
roots, flowers, and bees
d)
soil, air, and oxygen
42.
What are the reactants of photosynthesis?
a)
carbon dioxide and oxygen
b)
water and oxygen
c)
carbon dioxide and water
d)
water and glucose
43.
What are the products of photosynthesis?
a)
water and carbon dioxide
b)
oxygen and glucose
c)
oxygen and carbon dioxide
d)
oxygen and water
44.

How does most of the water needed by the plant get into its leaves?

a)

It enters through the stomata

b)

The roots absorb it and then it travels up the stem

c)

It's made during a chemical reaction in the leaf

d)

The flowers capture water and deliver it to the leaves

45.
How does carbon dioxide get into the leaves of a plant?
a)
It's absorbed by the roots
b)
It's made in a chemical reaction in the stem
c)
It enters through the stomata
d)
It goes through the flowers
46.
The stacks of disks in the chloroplast are called:
a)
Lamellae
b)
Grana
c)
Stroma
d)
Thylakoid
47.
The interior space of the chloroplast is called:
a)
Lamellae
b)
Grana
c)
Stroma
d)
Thylakoids
48.
What is the main purpose of the light reactions?
a)
To provide the energy and electrons for the calvin cycle
b)
To capture energy and make sugar
c)
To reflect green light
d)
To make sugars
49.
What is the function of NADPH and ATP?
a)
They absorb light
b)
They power the light-dependent reactions
c)
They are light-reflecting pigments
d)
They are short term energy carriers
50.

Where do the dark reactions (Calvin cycle) take place?

a)

thylakoid membrane

b)

lumen

c)

stroma

51.
What are the two products of the light reactions that are needed for the calvin cycle?
a)
NAD and NADPH
b)
NADP + and Glucose
c)
NADPH and ATP
d)
Oxygen and NADPH
52.
After photosynthesis, plants store their energy as _________ .
a)
chlorophyll
b)
pigment
c)
glucose (sugar)
d)
Oxygen
53.

2.The function accomplished by the light-dependent reactions is ______________.

a)

Energy and electron storage

b)

Sugar production

c)

Carbon fixation

d)

Conversion of sugar

54.

Where does dark reaction or light independent specifically occur?

a)

thylakoid membrane

b)

Stroma of the chloroplast

c)

Grana

d)

nuclear membrane

55.

Which of the following light color is absorbed by plants?

a)

Red

b)

Green

c)

yellow

d)

Light green

56.

Which of the following statements does not describe Light independent reaction?

a)

aka Calvin cycle

b)

Produce ATP and NADPH

c)

Produce glucose

d)

Occur in the stroma of the chloroplast

e)

Use ATP and NADPH for the reaction

57.

•An enzyme that fixes carbon from atmosphere to convert it to complex macromolecule glucose.

a)

RuBP (Ribulose bisphosphate)

b)

RuBisCo (Ribulose Bisphosphate Carboxylase)

c)

PGA (3-Phosphoglycerate)

d)

G3P (Glyceraldeyhyde 3-Phosphate)

58.

How many G3P is needed to convert to a one molecule of glucose?

a)

1

b)

2

c)

3

d)

4

e)

5

59.

•Photosynthesis is a type of anabolic and exergonic reaction.

a)

True

b)

False

60.
What leaf structure prevents water loss?
a)
spongy mesophyll
b)
cuticle
c)
stoma
d)
phloem
61.

What enzyme fixes CO2 in C4 and CAM plants?

a)

ATP synthase

b)

rubisCO

c)

PEP carboxylase

d)

lactase

62.
Most plants appear green because chlorophyll
a)
absorbs green light.
b)
absorbs violet light.
c)
reflects green light.
d)
does not absorb violet light.
63.
Which conclusion best matches the trends shown on the graph?
a)
Bean plants produce more ATP than corn plants.
b)
Corn plants require more oxygen than bean plants.
c)
Corn plants release more carbon dioxide than bean plants.
d)
Corn plants produce sugars at a faster rate than bean plants.
64.
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
65.
In a plant cell, where are ATP synthase complexes located?
a)
thylakoid membranes only
b)
inner mitochondrial membranes only
c)
thylakoid membrane and inner mitochondrial membranes
d)
thylakoid membrane and plasma membranes
66.
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.
67.
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
68.
Where do the enzymatic reactions of the Calvin cycle take place?
a)
stroma of the chloroplast
b)
thylakoid membranes
c)
matrix of the mitochondria
d)
thylakoid space
69.
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
70.
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.
71.
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.
72.
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
73.

What is the overall goal of a plant conducting photosynthesis?

a)

To create oxygen

b)

To create energy molecules for heterotrophs

c)

To create sugar for it's own selfish purposes

d)

To absorb sunlight and reduce global temperatures

74.

What are the reactants of photosynthesis?

a)

oxygen and water

b)

carbon dioxide and sugar

c)

water and carbon dioxide

d)

carbon dioxide and sunlight

75.

What are the products of photosynthesis?

a)

carbon dioxide, water, and sunlight

b)

oxygen gas and glucose

c)

starch and cellulose

d)

carbon dioxide and water

76.

What begins the process of photosynthesis?

a)

carbon dioxide is diffused into the stroma to, in a series of reactions, create sugar

b)

Water is split apart to release electrons and create a hydrogen concentration gradient

c)

ATP and NADPH energize reactants to produce oxygen and glucose

d)

Light energy is absorbed by pigments to energize the electron transport chain

77.

What is water's role in photosynthesis?

a)

To create a liquid solute for oxygen to be made.

b)

To provide electrons and hydrogen, to energize ATP and NADPH.

c)

To help plants with gas exchange, such as diffusion of CO2.

d)

To hydrate plants and removes harmful waste products.

78.

What do pigments do?

a)

Absorb specific wavelengths(color) of visible light for energy.

b)

Absorb CO2 in the Stroma to create sugar.

c)

Transports e- in the electron transport chain.

d)

Transports energy between plant cells.

79.

What are the two main energy carrying molecules used to create glucose?

a)

ADP and ADNH+

b)

ATP and NADPH

c)

Starch and Cellulose

d)

Glucose and Hydrogen

80.

Do you even Bioterm? What is it called when sunlight breaks apart water?

a)

intrahydrate

b)

synthohydrosis

c)

hydroluminize

d)

photolysis

81.

What molecule contributes to the majority of a plant's mass?

a)

Water

b)

Soil nutrients

c)

Carbon Dioxide

d)

Oxygen

82.

When glucose is produced in the dark reactions, what molecules provided this sugar with the energy it carries?

a)

ATP and NADPH

b)

Sunlight

c)

ADP and NADP+

d)

H2O and CO2

83.

Where is energy absorbed and released in the molecules of photosynthesis?

a)

In the molecules bonds

b)

Energy is transferred freely

c)

Energy radiates into or out of molecules

d)

Enzymes carry the energy in vacuoles

84.

What are the primary ways glucose is stored in plants?

a)

As glycogen and fat

b)

As starch, cellulose, and oils

c)

In the stroma of the chloroplast

d)

As glycogen and cellulose

85.

Humans primarily store short term energy molecules in their skeletal muscles and liver. How is energy stored in the human body?

a)

As starch and cellulose.

b)

As glucose and fat.

c)

As glycogen and fat

d)

As starch, cellulose, and oils.

86.

What organelle is responsible for photosynthesis in plants?

a)

endoplasmic reticulum

b)

chloroplast

c)

mitochondria

d)

golgi complex

87.

In an experiment, the oxygen level inside closed containers is changed to determine the impact on the rate of a tulip's photosynthesis.

a)

Oxygen levels will not effect the rate of photosynthesis

b)

CO2 will diffuse at a decreased rate

c)

Glucose production will decrease.

d)

Electrons will no longer be donated to run the electron transport chain

88.

As the intensity of light increases, the rate of photosynthesis will...

a)

steadily increase

b)

increase exponentially

c)

increase, then level off, then decrease

d)

decrease at first, then increase

89.

Which of the following statements is true about pigments?

a)

Chlorophyll is best at absorbing green and yellow light

b)

Chlorophyll a makes plants either violet or red

c)

Carotenoid is best at absorbing yellow, orange, and red light

d)

Carotenoid is best at absorbing blue-violet light

90.

Which of the following statements about pigments is true?

a)

Chlorophyll A is much better at absorbing light than Chlorophyll B

b)

Phycocyanin would make a plant look blue or violet

c)

Yellow light is reflected by phycoerythrin

d)

Carotenoids would make a plant look a lighter shade of blue or green

91.

Which of the following organisms would NOT utilize photosynthesis for energy?

a)

Oak tree

b)

Holly bush

c)

Trout

d)

Red algae

e)

Spinach

92.

Which of the following best explains why the rate of photosynthesis dramatically drops off at extreme temperatures (hot and cold)?

a)

there is not enough CO2 to fuel the reaction

b)

there is not enough light to power the reaction

c)

the shape of enzymes involved in the reaction denature

d)

the mitochondria cannot function at these temperatures

e)

all of the above could explain why the rate drops off

93.

What is the source of activation energy to drive the photosynthetic reaction?

a)

Bonds in carbon dioxide being broken apart

b)

Glucose being broken down

c)

Sunlight being captured by chlorophyll

d)

Water being split into H+ ions

e)

Combustion of oxygen gas

94.

The graph above has oxygen as the DV and light intensity as the IV. According to the graph, at what point is carbon dioxide being absorbed at the maximum rate?

a)

0 units

b)

5 units

c)

12 units

d)

16 units

e)

The graph does not give this information

95.

Where is the energy stored in ATP that will be used to energize the Calvin Cycle?

a)

In the ribose sugar

b)

In the bonds between ribose and adenine

c)

In the adenine base

d)

In the phosphates

e)

In the bonds between the phosphates

96.

What happens during photosynthesis?

a)

Heterotrophs produce ATP

b)

Heterotrophs consume ATP.

c)

Autotrophs consume carbohydrates.

d)

Autotrophs produce carbohydrates.

97.

In the autumn, the green leaves of sugar maples turn orange. Which explanation is true?

a)

The leaves increase their production of carotenoids to adjust to the autumn light.

b)

The colors of carotenoids are no longer masked by the color of chlorophyll.

c)

The autumn light has more orange wavelengths than the summer light has.

d)

The autumn light lacks the blue and orange-red wavelengths found in the summer light.

98.

Which of the following is NOT a true statement about ATP?

a)

Used ATP is discarded by the cell as waste.

b)

ATP provides energy for the mechanical functions of cells.

c)

ATP consists of ribose, adenine, and three phosphate groups.

d)

ADP is produced when ATP releases energy.

99.

Plants gather the sun’s energy using molecules called...

a)

glucose

b)

chloroplasts

c)

thylakoids.

d)

pigments

100.

Organisms, such as plants, that make their own food are called..

a)

heterotrophs

b)

autotrophs

c)

thylakoids

d)

pigments

101.

Energy is released from ATP when...

a)

a phosphate group is added

b)

adenine bonds to ribose

c)

ATP is exposed to sunlight

d)

a phosphate group is removed

102.

Photosynthesis uses sunlight to convert water and carbon dioxide into..

a)

oxygen and carbon.

b)

high-energy sugars and proteins

c)

ATP and oxygen

d)

oxygen and high-energy sugars

103.

Plants get the energy they need for photosynthesis by absorbing

a)

high-energy sugars

b)

chlorophyll a

c)

energy from the sun.

d)

chlorophyll b

104.

Most plants appear green because chlorophyll...

a)

absorbs violet light.

b)

absorbs green light.

c)

does not absorb green light.

d)

does not absorb violet light.

105.

The stroma is the region outside the

a)

chloroplasts

b)

thylakoids

c)

plant cells

d)

all of the above

106.

Where do the light-dependent reactions take place?

a)

in the stroma of the chloroplast

b)

within the thylakoid membranes

c)

within the mitochondria membranes

d)

in the outer membrane of the chloroplasts

107.

What are the products of the light-dependent reactions?

a)

ATP, NADPH, and oxygen gas

b)

ATP, carbon dioxide gas, and NADPH

c)

carbon dioxide gas, oxygen gas, and NADPH

d)

oxygen gas and glucose

108.

Which of the following activities happens within the stroma?

a)

Photosystem I absorbs light.

b)

ATP synthase produces ATP.

c)

Electrons move through the electron transport chain.

d)

The Calvin cycle produces sugars.

109.

The Calvin cycle is another name for the...

a)

light-independent reactions.

b)

light-dependent reactions.

c)

photosynthesis reaction.

d)

electron transport chain.

110.

Plants gather energy with light-absorbing molecules called pigments.

a)

True

b)

False

111.

The light reactions of photosynthesis provides the Calvin cycle with...

a)

protons and electrons.

b)

ATP and NADPH

c)

CO2 and glucose.

d)

light and chlorophyll.

112.

The plants’ principal pigment is carotene.

a)

True

b)

False

113.

ATP is NOT a good molecule for storing large amounts of energy over the long term.

a)

True

b)

False

114.

Organisms that make their own food are called heterotrophs.

a)

True

b)

False

115.

During the light-dependent reactions, plants use the energy in ATP and NADPH to build high-energy sugars.

a)

True

b)

False

116.
Which structures shown in the Figure make up the ADP molecule?
a)
A and B
b)
A, B and C
c)
A, B, C, and D
d)
C and D
117.
Using the figure, which parts of the molecule must the bonds be broken to form an ADP molecule?
a)
A and B
b)
B and C
c)
C and D
d)
all of the above
118.
Energy is released from ATP when
a)
a phosphate group is added
b)
adenine bonds to ribose
c)
ATP is exposed to sunlight
d)
a phosphate group is removed
119.
Which of the following can be compared to a battery in need of recharging?  (empty wallet)
a)
ADP
b)
ATP
c)
Ribose
d)
Adenosine
120.
Which contains the most energy?
a)
carbohydrates
b)
lipids
c)
proteins
d)
nucleic acids
121.
What does the "TP" in ATP stand for?
a)
2 phosphates
b)
tri (3) phosphates
c)
Two proteins
d)
tri (3) proteins
122.
What are the products of photosynthesis?
a)
water and carbon dioxide
b)
oxygen and glucose
c)
oxygen and carbon dioxide
d)
oxygen and water
123.
What molecule absorbs sunlight for photosynthesis?
a)
chloroplast
b)
thylakoid
c)
grana
d)
chlorophyll
124.
Plants need carbon dioxide from their environment to produce glucose during which stage of photosynthesis? 
a)
The light-dependent stage
b)
The light-independent stage 
c)
The electron transport chain
d)
ATP formation
125.
Where do the light-dependent reactions occur? 
a)
thylakoid 
b)
stroma
c)
mesophyll
d)
mitochondria
126.
What is the source of energy for photosynthesis?
a)
carbohydrates-chemical
b)
sunlight
c)
heat-thermal
d)
electrical
127.
Which of the following is the correct equation for PHOTOSYNTHESIS?
a)
carbon dioxide + water --> oxygen + glucose
b)
carbon dioxide + glucose + water --> oxygen 
c)
oxygen + water --> carbon dioxide + glucose
d)
glucose+ oxygen ---> water + carbon dioxide 
128.
What are the products of photosynthesis?
a)
Carbon dioxide and water
b)
Carbon dioxide and oxygen
c)
Glucose and oxygen
d)
Glucose and water
129.
Which organelle does photosynthesis take place in?
a)
Mitochondrion
b)
Chloroplast
c)
Cytoplasm
d)
Nucleus
130.
Which term is the part of photosynthesis which uses ATP from the first stage in order to produce glucose? Hint:  Occurs in the stroma!
a)
light- independent reactions
b)
cellular respiration
c)
light- dependent reactions
d)
 photosynthesis

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