Free Printable Photosynthesis

Worksheets

Photosynthesis

Total questions: 15

Worksheet time: 8mins

Name

Class

Date

What is the pigment in chloroplasts that performs photosynthesis?

Chlorosynthesis

Chlorophyll

ADP

Electron Transport

The stacks of disks in the chloroplast are called:

Lamellae

Grana

Stroma

Thylakoid

The interior space of the chloroplast is called:

Lamellae

Grana

Stroma

Thylakoids

What is the function of NADPH and ATP?

They absorb light

They power the light-dependent reactions

They are light-reflecting pigments

They are short term energy carriers

Where does the light independent reaction take place?

Matrix

Stroma

Thylakoid membrane

Cytoplasm

What reactants are needed for the Calvin cycle?

Carbon dioxide

Carbon dioxide, ATP and NADPH

Carbon dioxide and glucose

Oxygen and water

Where do the light reactions happen?

mitochondria membrane

thylakoid membrane

stroma

central vacuole

What are the two products of the light reactions that are needed for the calvin cycle?

NAD and NADPH

NADP + and Glucose

NADPH and ATP

Oxygen and NADPH

Which of the following equations represents the overall chemical reaction for photosynthesis?

6O₂+ 6H₂O → C₆H₁₂O₆+ 6O₂

C₆H₁₂O₆ + 6H₂O→ 6O₂+ 6O₂

6CO₂+ 6H₂O→ C₆H₁₂O₆+ 6O₂

6O₂ + 6H₂O→ C₆H₁₂O₆ + 6CO₂

10.

What happens to the O₂created in the light phase?

Is transferred to the Calvin Cycle

Donates its electrons to the Chlorophyll molecules

Provides a carbon to form the unstable 6-carbon molecule

Diffuses out through the stoma

11.

Water is split during

photophosphorylation

photolysis

calvin cycle

cell respiration

12.

The rate of photosynthesis can be influenced by...

Temperature

Carbon dioxide levels

Light intensity

Oxygen concentration

13.

Which of the following is true of the Calvin Cycle?

carbon dioxide and energy (ATP and NADPH) are used to make organic compounds

energy is absorbed from sunlight and converted to chemical energy stored in ATP and NADPH

Occurs in the thylakoid

Occurs in the cytoplasm

14.

Temperatures that are too high can slow photosynthesis because

stomata stay open

enzymes are ruined

there is not enough CO2

there is too much water

15.

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

CO₂

ATP

NADPH

H₂O

Reset

Photosynthesis

Total questions: 15

Worksheet time: 8mins

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