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Total questions: 45

Worksheet time: 29mins

Name
Class
Date
1.

During photosynthesis, the light-dependent phase only takes place in the presence of light and the dark phase, also known as the light-independent phase, only takes place in the absence of light.

a)

True

b)

False

2.

Which of the following is not an example of a way in which ATP is used? 

a)

  • ATP provides energy for the beating of cilia and flagella, which are the hair-like organelles found in some microorganisms that help with movement or mobility.

b)

  • ATP is used for the breaking down of macromolecules such as nucleic acids, proteins and fats. 

c)

  • ATP is used for active transport or movement of substances across cell membranes. 

d)

  • ATP is used in animals for the contraction of muscle cells.

3.

With low levels of light, a plant cannot photosynthesise, even if there is plenty of water and carbon dioxide available.

a)

  • True

b)

  • False

4.
Which organelle performs PHOTOSYNTHESIS?
a)
Chloroplast
b)
Mitochondria
5.

Which of the following is the correct equation for PHOTOSYNTHESIS?

a)

CO2 + H2O + light --> Sugar + O2

b)

CO2 + sugar + H2O --> O2 + light

c)

O2 + H2O + light --> CO2 + Sugar

d)

CO2 + O2 + H2O --> light + Sugar

6.
What is the ultimate ORIGINAL source of energy for living things
a)
Sugar
b)
Sun
c)
Moon
d)
Carbon Dioxide
7.
Which gas is removed from the atmosphere during photosynthesis?
a)
hydrogen
b)
oxygen
c)
nitrogen
d)
carbon dioxide
8.
What are the products of photosynthesis?
a)
water and carbon dioxide
b)
oxygen and glucose
c)
oxygen and carbon dioxide
d)
oxygen and water
9.
Plants need ________ for photosynthesis
a)
oxygen
b)
soil
c)
carbon dioxide
d)
sugar
10.
Chloroplasts are...
a)
Structures of animal cells to produce ATP
b)
Organelles where lipids are elaborated
c)
Specialized structures of plants where food is made
d)
Waste organelle of plants
11.

All living things do which of the following?

a)

photosynthesis

b)

cell respiration

12.

What is a high energy molecule with 3 phosphates?

a)

ATP

b)

ADP

c)

ribose

d)

adenine

13.

What are the products of the light DEPENDENT reactions?

a)

Glucose and Oxygen

b)

NADPH/ATP and Oxygen

c)

Glucose and Carbon Dioxide

d)

NADP+/ADP and Glucose

14.

Where do the light-dependent reactions occur?

a)

thylakoid

b)

stroma

c)

mesophyll

d)

mitochondria

15.

ATP is used as...

a)

The building block of proteins

b)

An energy source for diffusion

c)

The building block of DNA and RNA molecules

d)

An energy source for cell processes

16.

Chloroplasts in a plant cell contain a light absorbing molecule called what?

a)

Stroma

b)

Carotenoid

c)

Chloroplast

d)

Chlorophyll

17.

Plants absorb green light.

a)

True

b)

False

18.

What are stacks of flattened sacs that contain the pigment chlorophyll called?

a)

Stroma

b)

Thylakoids

c)

Chemiosmosis

d)

Chlorophyll

19.

In addition to sunlight, what else is required for photosynthesis to take place?

a)

Sugar and water

b)

Water and oxygen

c)

Oxygen and Carbon Dioxide

d)

Carbon Dioxide and Water

20.

What are the products of the light INDEPENDENT reactions?

a)

Glucose and Oxygen

b)

NADPH/ATP and Oxygen

c)

Glucose and Carbon Dioxide

d)

NADP+/ADP and Glucose

21.

Where do the light-independent reactions occur?

a)

thylakoid

b)

stroma

c)

mesophyll

d)

mitochondria

22.

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

23.

Which of the following is the correct structure of ATP?

a)
b)
c)
d)
24.

Using the figure, between which two 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

25.

What is a low energy molecule with 2 phosphates?

a)

ATP

b)

ADP

c)

Ribose

d)

Adenine

26.
The ____________ is the most photosynthetic part of a plant.
a)
leaf
b)
flower
c)
roots
d)
stem
27.
The formula for glucose is...
a)
C12 H22 O11
b)
NaCl
c)
NaOH
d)
C6 H12 O6
28.
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
29.
Which of the following can be compared to a battery in need of recharging?  (empty wallet)
a)
ADP
b)
ATP
c)
Ribose
d)
Adenosine
30.
What does the "TP" in ATP stand for?
a)
2 phosphates
b)
tri (3) phosphates
c)
Two proteins
d)
tri (3) proteins
31.

Which bond of the ATP molecule is broken in order to release energy?

a)

A

b)

B

c)

C

d)

D

32.

What substance helps in removing a phosphate?

a)

Adenosine

b)

Water

c)

Hydrogen

d)

Phosphates

33.
This image shows the process of _____.
a)
Respiration
b)
Photosystem I
c)
Dark Reactions
d)
Photosynthesis
34.
__________ is a stack of thylakoids
a)
Granum
b)
Stomata
c)
Stroma
d)
Chloroplast
35.
a)
Stroma
b)
Thylakoid
c)
Skittle
d)
Grana
36.
a)
Flapjack Stack
b)
Grana
c)
Thylakoid
d)
Stroma
37.
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.
38.
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.
39.

An enzyme that has a channel through which the H+ flows back out of the thylakoids.

a)

ATP synthase

b)

ADP catalazye

c)

thylakoidase

d)

photosystems

40.

Two groups of molecules, photosystem 1 and photosystem 2, that absorbs light during the light-dependent reactions.

a)

photosynthesis

b)

photosystems

c)

light reactions

d)

light independent reactions

41.

A chain of proteins in the thylakoid membranes that moves electrons. The electrons have energy that helps pump hydrogen ions into the thylakoids.

a)

electron disappearing chain

b)

electron transport chain

c)

electron creating chain

d)

electron hydrogen chain

42.

This is a molecule that is similar to ATP

a)

NADPH

b)

NADP+

c)

NADPY

d)

ATP-Y

43.

Red and blue light support the highest rates of photosynthesis because …

a)

Chlorophylls absorb light of these wavelengths more than other wavelengths.

b)

These are the only wavelengths that carotenoids cannot absorb.

c)

Light of these wavelengths have the highest energy in the visible spectrum.

d)

Light of these wavelengths activate the ATP synthase enzyme.

44.

The role of water molecule in light dependent reaction is to …

a)

Hydrolyse NADP+ at the end of the electron transport chain.

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.

45.

Which of the following are products of the light reactions of photosynthesis that are utilised in the Calvin cycle?

a)

Electrons and H+

b)

CO2 and glucose

c)

ATP and NADPH

d)

ADP, Pi and NADPH

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