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4.2 - Photosynthesis

Total questions: 21

Worksheet time: 11mins

Name
Class
Date
1.

Where does Photosynthesis take place in a plant cell?

a)

Nucleus

b)

Chloroplast

c)

cytoplasm

d)

mitochondria

2.

The following are the raw materials needed for photosynthesis: Sunlight, Carbon dioxide and water

a)

False

b)

True

3.

Identify this molecule

a)

Oxygen

b)

carbon dioxide

c)

water

d)

glucose

4.

Plants or plant like organisms that make their own food using energy from the sunlight are called ____

a)

Heterotrophs

b)

photoautotrophs

c)

chemoautotrophs

5.

Plant leaves appear green due to the presence of

a)

xanthophyll

b)

carotene

c)

chlorophyll

6.

Where do the light independent reactions (Calvin Cycle) specifically occur?

a)

thylakoid membrane

b)

Stroma of the chloroplast

c)

Grana

d)

nuclear membrane

7.

What is the term for a stack of thylakoids?

a)

stroma

b)

granum

c)

stomata

d)

matrix

8.

T/F: Stomata / stoma close in hot, dry conditions to preserve water

a)

true

b)

false

9.

Which of the following are high energy molecules created by the light dependent reactions and used by the Calvin cycle? Select all that apply.

a)

NADPH

b)

NADP+

c)

ADP

d)

ATP

10.

Light-absorbing colored molecules called _____ are found in the thylakoid membranes.

a)

granum

b)

pigments

c)

stroma

d)

carotenoids

11.

_______ contain the light-capturing pigments and proteins that play important roles in the light reactions.

a)

ferredoxin

b)

photosystems

c)

stomata

d)

RuBisCO

12.

T/F: Light energy splits water at photosystem II into oxygen, electrons, and H+ ions.

a)

true

b)

false

13.

______ is the mechanism by which ATP is produced as a result of the flow of electrons down a concentration gradient.

a)

ATPosmosis

b)

Chemiosmosis

c)

Electromosis

d)

Energosis

14.

T/F: Desert plants, such as cacti, are CAM plants.

a)

true

b)

false

15.

Which enzyme converts the remaining G3P molecules into 5-carbon molecules called ribulose 1,5-bisphosphates (RuBP) to combine with new CO2 and continue the cycle?

a)

Carboxylase

b)

RuBisCO

c)

NaBisCO

d)

GluCo

16.

Where do the light dependent reactions take place specifically?

a)

thylakoid membrane

b)

stroma

c)

nucleus

d)

matrix

17.

T/F: The chemical equation for photosynthesis is

6CO2 + 6H2O --> C6H12O6 + 6O2

a)

true

b)

false

18.

In the second phase of photosynthesis, called the Calvin cycle, energy is stored in organic molecules such as _______.

a)

proteins

b)

sugars

c)

lipids

d)

nucleic acids

19.

What is the electron donor of photosynthesis?

a)

carbon dioxide

b)

oxygen

c)

water

d)

glucose

20.

What is the electron acceptor of photosynthesis?

a)

carbon dioxide

b)

oxygen

c)

water

d)

glucose

21.

What are the small openings in the underside of plant leaves that allow for gas exchange needed for photosynthesis (carbon dioxide, oxygen, and water vapor)?

a)

stroma

b)

thylakoid

c)

stomata