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Photosynthesis

Total questions: 66

Worksheet time: 2hrs 0mins

Name
Class
Date
1.

Select all that are raw materials for Photosynthesis.

a)

Water

b)

Carbon Dioxide

c)

Oxygen

d)

Sunlight (Light Energy)

e)

Glucose (Sugar/food)

2.

Select all that are products of Photosynthesis.

a)

Water

b)

Carbon Dioxide

c)

Oxygen

d)

Sunlight (Light Energy)

e)

Glucose (Sugar/food)

3.

Which organelle stores water for use in photosynthesis?

a)

Chloroplast

b)

Cell Membrane

c)

Vacuole

d)

Nucleus

4.

Is Glucose (C6H12O6) a Raw Material (Ingredient) or Product of Photosynthesis?

a)

Product

b)

Raw Material

c)

Neither

5.
Why do plants conduct photosynthesis?
a)
To make light
b)
To make mitochondria
c)
To make glucose
d)
To release carbon dioxide
6.
Which of these conditions would decrease the rate of photosynthesis in a plant?
a)
Above average precipitation
b)
Changing the daylight hours from 14 hrs to 10 hrs
c)
Changing the CO2 concentration from 380 ppm to 410 ppm
d)
All of these choices
7.
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
8.

Which of the following is the correct equation for PHOTOSYNTHESIS?

a)

light + carbon dioxide + water --> glucose + oxygen

b)

carbon dioxide + sugar + water --> oxygen + light

c)

oxygen + light + water --> carbon dioxide + sugar

d)

carbon dioxide + oxygen + water --> Light+ Sugar

9.
Which organisms perform Photosynthesis?
a)
Only Autotrophs
b)
Only Heterotrophs
c)
Autotrophs and Heterotrophs
10.
Which of the following is an example of an AUTOTROPH?
a)
Appletree
b)
Dog
c)
Mushroom
d)
Human
11.
Which organelle performs PHOTOSYNTHESIS?
a)
Chloroplast
b)
Mitochondria
12.
What is the ultimate ORIGINAL source of energy for living things
a)
Sugar
b)
Sun
c)
Moon
d)
Carbon Dioxide
13.
What is the pigment in chloroplasts that performs photosynthesis?
a)
Chlorosynthesis
b)
Chlorophyll
c)
ADP
d)
Electron Transport
14.
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
15.
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
16.

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

a)

thylakoid membrane

b)

lumen

c)

stroma

17.
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
18.
What is the main chemical compound that stores and releases energy?
a)
ATP
b)
Cytoplasm
c)
PTP
d)
Oxygen
19.
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
20.
The stacks of disks in the chloroplast are called:
a)
Lamellae
b)
Grana
c)
Stroma
d)
Thylakoid
21.
The interior space of the chloroplast is called:
a)
Lamellae
b)
Grana
c)
Stroma
d)
Thylakoids
22.
What is the main purpose of the light dependent reactions?
a)
To provide the energy for the calvin cycle
b)
To capture energy and make sugar
c)
To reflect green light
d)
To make sugars
23.
__________ energy from the sun is changed intto __________ energy during photosynthesis
a)
Chemical energy to light energy
b)
Light energy to chemical energy
c)
Thermal energy to light energy
d)
Electrical energy to chemical enerfy
24.
Which of the following statement is true regarding photosynthesis
a)
creates oxygen for animals to breath
b)
creates energy for consumers to use
c)
creates food for plants to use
d)
all of these are correct
25.
Why do producers need humans?
a)
Producers use the oxygen humans make
b)
Producers need someone to water them
c)
Producers use the carbon dioxide humans make and turn it into oxygen
d)
Producers use the glucose humans give them
26.
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
27.
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 (The Calvin Cycle)
c)
The electron transport chain
d)
ATP formation
28.
Where do the light-dependent reactions occur? 
a)
thylakoid membrane
b)
stroma
c)
mesophyll
d)
mitochondria
29.
Where does the Calvin Cycle occur?
a)
thylakoid
b)
stroma
c)
lumen
d)
mitochondria
30.
In the Calvin Cycle, which enzyme helps keep the cycle going?
a)
Hydrolase
b)
Rubisco
c)
Pepsisco
d)
Re-starterase
31.
Which term is the part of photosynthesis when light energy is captured and transferred to a molecule, such as ATP?
a)
light- independent reactions
b)
cellular respiration
c)
light- dependent reactions
d)
 photosynthesis
32.
What supplies the electron that is lost in PS II?
a)
oxygen
b)
water
c)
glucose
d)
rubisco
33.
Chlorophyll is green because
a)
it absorbs green wavelengths of light
b)
it absorbs blue and yellow wavelengths of light
c)
it reflects green wavelengths of light
d)
it is an optical illusion caused by the transmission of light
34.
This molecule helps add a phosphate do a depleted energy molecule.
a)
PS 2
b)
PS 1
c)
Electron Transport Chain
d)
ATP Synthase
35.
After the electron leave PS II, where does it go next?
a)
Electron Transport Chain
b)
NADPH Reductase
c)
PS I
d)
Stroma
36.
What is the first stop in photosynthesis process?
a)
Photosystem I
b)
Photosystem II
c)
Electron Transport Chain
d)
stroma
37.
This image shows the process of _____.
a)
Respiration
b)
Photosystem I
c)
Dark Reactions
d)
Photosynthesis
38.
__________ is a stack of thylakoids
a)
Granum
b)
Stomata
c)
Stroma
d)
Chloroplast
39.

Look at the diagram. Which gas would most likely be found in the greatest amount in the bubbles?
a)
oxygen
b)
nitrogen
c)
ozone
d)
carbon dioxide
40.
a)
Stroma
b)
Thylakoid
c)
Skittle
d)
Grana
41.
a)
Flapjack Stack
b)
Grana
c)
Thylakoid
d)
Stroma
42.
a)
Grana
b)
Thylakoid
c)
Stroma
d)
Jelly Filling
43.
If carbon dioxide is completely removed from a plant’s environment, what would you expect to happen to the plant’s production of high-energy sugars (rate of photosynthesis)?
a)
Sugar production will likely increase.
b)
Sugars will not be produced.
c)
The rate of sugar production will decrease .
d)
Fewer sugars will be produced at first, but then the plant will recover.
44.
The rate of photosynthesis is affected by all of the following except
a)
the amount of salt.
b)
the availability of water.
c)
light intensity.
d)
temperature (enzymes).
45.
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.
46.
Autotroph or heterotroph?
a)
Autotroph
b)
Heterotroph
47.
Autotroph or Heterotroph?
a)
Autotroph
b)
Heterotroph
48.
Autotroph or heterotroph?
a)
Autotroph
b)
Heterotroph
49.
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 
50.

Why are plants considered autotrophs

a)

They make their own food

b)

They provide food for others

51.

.


In the first stage of photosynthesis,

a)

carbon compounds are produced

b)

the Calvin cycle takes place

c)

sunlight is required to generate ATP

d)

carbon dioxide is utilized

52.

Why do some leaves turn from green to red, orange, or yellow in the fall?

a)

Chlorophyll breaks down and its stored

b)

Chlorophyll production increases

c)

Chlorophyll leaks out of the leaves

d)

Chlorophyll changes colors in cool weather

53.

What occurs in the Calvin Cycle of photosynthesis?

a)

nothing happens there is no energy

b)

glucose is synthesized from CO2

c)

Oxygen is being converted into sugar

54.
When bacteria use CO2 to make glucose and oxygen
a)
Cellular respiration
b)
fermentation
c)
photosynthesis
d)
chemosynthesis
55.

Plants need water, carbon dioxide, and light for photosynthesis. According to the diagram, how does the plant absorb water for photosynthesis?

a)

Through the chlorophyll

b)

Through the leaves

c)

Through the roots

d)

Through the sun

56.

According to the diagram, how does the plant absorb carbon dioxide?

a)

Through the chlorophyll

b)

Through the leaves

c)

Through the roots

d)

Through the sun

57.

The chemical formula for carbon dioxide is CO₂. What elements make up carbon dioxide?

a)

Carbon and hydrogen

b)

Hydrogen and oxygen

c)

Carbon

d)

Carbon and oxygen

58.

The chemical formula for glucose is C₆H₁₂O₆. What elements make up glucose?

a)

Carbon and hydrogen

b)

Hydrogen and oxygen

c)

Carbon, hydrogen, and oxygen

d)

Carbon and oxygen

59.

The chemical formula for carbon dioxide is CO₂. Based on what you know about chemical formulas, which is the correct model for CO₂?

a)

C - O

b)

H - C - H

c)

C - O - C

d)

O - C - O

60.

Cyclic photophosphorylation differs from non-cyclic photophosphorylation in that ___________ is not made from the process

a)

ATP

b)

PGAL

c)

NADH

d)

NADPH

61.

The role of water molecule in light dependent reaction is to

a)

Hydrolyse NADP+ at the end of the ETC

b)

Involve directly in the production of ATP

c)

Replace the excited electron of reaction centre molecule in photosystem II

d)

Involve directly in Calvin Cycle

62.

Which of the following molecule below is fixed during light dependent reaction?

a)

Oxygen

b)

Carbon dioxide

c)

ATP

d)

NADPH

63.

How many carbon dioxide molecule must be added to RuBP to make a single molecule of glucose?

a)

3

b)

4

c)

5

d)

6

64.

Intermediate metabolite which is formed during the light independent reaction in photosynthesis is

a)

NADH

b)

Oxygen

c)

Ribulose bisphosphate

d)

Water

65.

In green plant photosynthesis, the electron donor for the light dependent reaction is

a)

carbon dioxide

b)

oxygen

c)

RuBP

d)

water

66.

Which of the following does NOT occur during the Calvin Cycle

a)

carbon fixation

b)

oxidation of NADPH

c)

release of oxygen

d)

regeneration of the carbon dioxide acceptor

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