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PHOTOSYNTHESIS SB025

Total questions: 32

Worksheet time: 1hrs 12mins

Name
Class
Date
1.

During photosynthesis, the energy from the sun is used to split water molecules into hydrogen and oxygen.

a)

True

b)

False

2.

Which of the following is NOT needed for the process of photosynthesis?

a)

Water

b)

Oxygen

c)

Carbon dioxide

3.

Chlorophyll is:

a)

The substance that makes plants green.

b)

Found inside the chloroplast cells.

c)

Used to absorb energy from the sun.

d)

All of the above.

4.

The openings that are found in the leaves of plants are called:

a)

Stomata

b)

Chlorophyll

c)

Xylem

d)

Chloroplast

5.

Which of the following substances are needed to make carbohydrates?

a)

Hydrogen

b)

Oxygen

c)

Carbon

d)

All of the above.

6.

The process of photosynthesis takes place in the:

a)

Leaves of the Plant.

b)

Stem of the plant.

c)

Roots of the plant.

d)

All of the above.

7.

Plants store food in:

a)

Leaves

b)

Stems

c)

Roots

d)

All of the above.

8.

Which of the following is NOT a product of the light reactions?

a)

Oxygen

b)

NADPH

c)

ATP

d)

Glucose (Sugar)

9.
Where do the light reactions happen?
a)
mitochondria membrane
b)
thylakoid membrane
c)
stroma
d)
central vacuole
10.
Thylakoids are arranged in stacks called ____.
a)
Lamellae
b)
Stroma
c)
Granum
d)
Glucose
11.
The gel-like material that surrounds the grana is called ____
a)
lamellae
b)
granum
c)
thylakoid
d)
stroma
12.
In the ________________________, energy from the sun is used to make ATP 
a)
light-independent reaction
b)
dark reaction
c)
light-dependent reaction
d)
Calvin cycle
13.

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

14.

Match the reaction center in PSI & PSII with its name.

a)

PSI P700 ; PSII P780

b)

PSI P680; PSII P700

c)

PSII P680 ; PSI P700

d)

PSII P700; PSI P680

15.
How many G3P molecules make one molecule of glucose? 
a)
1
b)
2
c)
3
d)
4
16.
What happens to NADPH and ATP after they are used in the Calvin Cycle?
a)
they recycle back to the light reactions
b)
they are used to make G3P
17.
The Calvin Cycle occurs in the ___________.
a)
Stroma
b)
Thylakoid Membrane
c)
Enzyme ATP Synthase
d)
Chlorophyll
18.
The 5-Carbon molecules that the Calvin Cycle starts and ends with, is called _____________.
a)
PGA
b)
G3P
c)
RuBP
d)
RuDp
19.
After 12 G3P molecules are created, 10 are used to regenerate _________, while the other 2 are used to create __________.
a)
RuBP, C6H12O6
b)
Glucose, CO2
c)
ATP, Glucose
d)
Glucose, RUBP
20.
How many carbons does G3P have?
a)
1
b)
2
c)
3
d)
6
21.

To bring in nonliving carbon (CO2) and use it to make organic compounds is a process called _______________.

a)

carbon fixation

b)

cellular respiration

c)

catabolic reactions

d)

mitosis

22.
What Does CAM stand for
a)
Crassulacean Acid Metabolism
b)
Carbon Acid Metabolism
c)
Canvas Acid Metabolism
d)
Core Acid Metabolism
23.
True or False CAM plants open their stomata at night
a)
true
b)
false
24.

C4 &CAM plants have a different adaptation to what climate

a)

cold and wet

b)

hot and dry

c)

both

d)

none of the above

25.
Why do CAM plants open their stomata at night
a)
It just happens
b)
To reduce evaporation
c)
To collect Carbon Dioxide
d)
None of the above
26.
True or False c4 plants use the c4 pathway
a)
true
b)
false
27.

What are C3 plants?

a)

These plants are the best when it comes to storing water due to their extremely dry environments

b)

These plants mostly just reduce the rate of photorespiration

c)

plants that do the calvin cycle in the mesophyll cells

28.

In C4 plants, the Calvin cycle....

a)

Takes place at night

b)

Only occurs when the stomata are closed

c)

Takes place in the mesophyll

d)

Takes place in the bundle-sheath cells

29.

The main problem encountered by C3 plants in hot conditions is:

a)

Transpiration

b)

Photorespiration

c)

Dehydration

d)

Starvation

30.

The enzyme responsible for Carbon Fixation in C4 plant

a)

Rubisco

b)

PEP Carboxylase

c)

Hexokinase

d)

Pyruvate Dehydrogenase

31.

Which of these would be considered a C4 Pathway plant?

a)

cactus

b)

sugar cane

c)

oak tree

d)

aglae

32.

Which of these would be considered a CAM pathway plant?

a)

cactus

b)

corn

c)

elm tree

d)

algae

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