Photosynthesis

Which of the following happens in the light reaction?

• Water is split into hydrogen and oxygen.

• Organic molecules are formed.

• ATP is generated.

• NADPH is oxidized.

Where does the light reaction take place?

• Thylakoid

• Grana

• Stroma

• Stoma

Where does the Calvin Cycle take place?

• Thylakoid

• Grana

• Stroma

• Stoma

Chlorophyll absorbs all wavelengths of light.

• True

• False

It is the process where light splits water into hydrogen and oxygen.

• Carbon fixation

• Reduction

• Photolysis

• Hydrolysis

Which wavelength of light is reflected by the chlorophyll?

• Blue

• Green

• Yellow

• Red

Which of the following happens when the electron passes through the electron transport chain from photosystem II to photosystem I?

• NADP⁺ is reduced to NADPH.

• Light is harvested.

• Organic molecule is produced.

• ATP is generated.

Which are phases in the Calvin Cycle?

• Carbon fixation

• Reduction

• Electron Transport Chain

• Photolysis

Calvin cycle happens in which part?

• Stoma

• Granum

• Thylakoid

• Stroma

The Calvin cycle is also called the dark reaction because it does not need light energy, but it doesn't usually occur at night. Why?

• It is too cold for the reaction to take place.

• CO₂ concentrations decrease at night.

• The Calvin cycle depends on the products of the light reaction.

• Plants usually open their stomata at night.