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Photosynthesis (Light reactions/Calvin Cycle)

Total questions: 46

Worksheet time: 2hrs 32mins

Name
Class
Date
1.
Which organelle performs PHOTOSYNTHESIS?
a)
Chloroplast
b)
Mitochondria
2.
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
3.
What process occurs when light energy is captured in autotrophs and converted into sugar?
a)
Photosynthesis
b)
Cellular Respiration
4.
What is the ultimate ORIGINAL source of energy for living things
a)
Sugar
b)
Sun
c)
Moon
d)
Carbon Dioxide
5.
Which organisms perform Photosynthesis?
a)
Only Autotrophs
b)
Only Heterotrophs
c)
Autotrophs and Heterotrophs
6.
Which of the following is an example of an AUTOTROPH?
a)
Appletree
b)
Dog
c)
Mushroom
d)
Human
7.
Which of the following is an example of a HETEROTROPH?
a)
Grass
b)
Algae
c)
Lemon Tree
d)
Bear
8.
What is the pigment in chloroplasts that performs photosynthesis?
a)
Chlorosynthesis
b)
Chlorophyll
c)
ADP
d)
Electron Transport
9.
Which gas is removed from the atmosphere during photosynthesis?
a)
hydrogen
b)
oxygen
c)
nitrogen
d)
carbon dioxide
10.
What are the products of photosynthesis?
a)
water and carbon dioxide
b)
oxygen and glucose
c)
oxygen and carbon dioxide
d)
oxygen and water
11.
Plants need ________ for photosynthesis
a)
oxygen
b)
soil
c)
carbon dioxide
d)
sugar
12.
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.
13.
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
14.

Leaves look green because.....

a)

they eat their vegetables

b)

to blend into their environment

c)

they contain xanthophils

d)

they absorb red and blue

15.

Protons (hydrogen ions) move into the thylakoid due to the

a)

concentration gradient in the stroma

b)

Brownian motion of the protons.

c)

peer pressure from the electrons in the stroma.

d)

movement of electrons through the electron transport chain

16.
Which of the following is NOT a product of the light reactions?
a)
ATP
b)
NADPH
c)
Oxygen
d)
Glucose
17.

What is the purpose of splitting water in the light dependent reaction?

a)

Provides electrons and H+

b)

To produce Oxygen for animals

c)

There is no purpose

d)

All of the above

18.

It is important to create a concentration of H+ in the thylakoid space so that the H+ can be transported through_________ to create ______.

a)

ATP synthase, ATP

b)

NADH, NADPH

c)

sodium potassium pump, protons

19.
Where do the light reactions happen?
a)
mitochondria membrane
b)
thylakoid membrane
c)
stroma
d)
central vacuole
20.
Where are photosystems located?
a)
thylakoid space
b)
thylakoid membrane
c)
central vacuole
d)
stroma
21.
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
22.
What gas does the process of photosynthesis release into the atmosphere?
a)
oxygen
b)
carbon dioxide
c)
water
d)
nitrogen
23.

In a light-dependent reaction, water and sunlight are needed to make oxygen and _____.

a)

carbon dioxide

b)

sugar

c)

ATP

d)

chlorophyll

24.
Thylakoids are arranged in stacks called ____.
a)
Lamellae
b)
Stroma
c)
Granum
d)
Glucose
25.
The gel-like material that surrounds the grana is called ____
a)
lamellae
b)
granum
c)
thylakoid
d)
stroma
26.

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

a)

thylakoid membrane

b)

lumen

c)

stroma

27.

What does NADPH do?

a)

carries electrons to the Calvin cycle

b)

carries electrons to the ETC (electron transport chain)

28.
The two main stages of photosynthesis are the
a)
light reactions and respiration
b)
dark reactions and the Calvin cycle 
c)
light reactions and the Calvin cycle
d)
dark reactions and fermentation
29.
In green plants, the primary function of the Calvin cycle is to
a)
Use ATP to release carbon
b)
Split water to release oxygen.
c)
Construct simple sugars from carbon dioxide.
d)
Use NADPH to release carbon
30.

Which of the following is NOT a reactant of the dark reactions (Calvin Cycle)?

a)

NADPH

b)

ATP

c)

Oxygen

d)

Carbon dioxide

31.

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

a)

NADP+

b)

NADPH

c)

ADP

d)

G3P (to form glucose)

32.
What is made during the light independent reactions?
a)
ATP
b)
NADPH
c)
sugar
d)
fat
33.
TRUE or FALSE.  The Calvin Cycle can happen during the day.
a)
True
b)
false
34.
To bring in nonliving carbon (CO2) and use it to make organic compounds is a process called _______________.
a)
carbon fixiation
b)
cellular respiration
c)
catabolic reactions
d)
mitosis
35.
Where do NADP+ and ADP produced in the Calvin cycle go? 
a)
Back to the light reactions
b)
out of the chloroplast
36.

Which of the following molecules is not needed directly for the Calvin Cycle?

a)

CO2

b)

ATP

c)

NADPH

d)

H2O

37.

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

38.
The stacks of disks in the chloroplast are called:
a)
Lamellae
b)
Grana
c)
Stroma
d)
Thylakoid
39.
The disks in the chloroplast are called:
a)
Lamellae
b)
Grana
c)
Stroma
d)
Thylakoids
40.
The interior space of the chloroplast is called:
a)
Lamellae
b)
Grana
c)
Stroma
d)
Thylakoids
41.
The electrons for the Light Reactions come from
a)
NADP+
b)
Water
c)
NADPH
d)
Glucose
42.
Chlorophyll gives leaves a green colour because it:
a)
Absorbs green light
b)
Reflects green light
43.
In the light reactions of photosynthesis, H+ are pumped:
a)
In from the stroma
b)
Out of the stroma
c)
Into the chloroplast
d)
Out of the thylakoid
44.
Bundles of pigments called photosystems absorb light and donate electrons to ETCs
a)
True
b)
False
45.

PSI is called like this because is the first photosystem in the light reaction

a)

True

b)

False

46.

Energy released from electrons during ETC, is used to ...

a)

Pump protons (H+) from the interior of thylakoids to the stroma

b)

Pump protons (H+) from the stroma to the interior of thylakoids

c)

Break a water molecule (photolysis)

d)

reduce the proton (H+) gradient inside the thylakoid

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