PHOTOSYNTHESIS

How many molecules of carbon dioxide are used in the photosynthesis equation?

• 3

• 6

• 12

• 18

What is the primary product of photosynthesis that stores energy?

• Oxygen

• Water

• Glucose

• Carbon dioxide

What is the space surrounding the thylakoids in the chloroplast called?

• Stroma

• Matrix

• Cytoplasm

• Nucleoplasm

What do NADP+ molecules in the stroma accept to become NADPH?

• Two low-energy electrons

• Two high-energy electrons and a hydrogen ion (H+)

• Two oxygen molecules

• Two carbon atoms

What is the role of ATP in the Calvin cycle?

• To provide carbon

• To provide energy

• To provide oxygen

• To provide water

Which molecule is lower in energy, NADP+ or NADPH?

• NADPH

• NADP+

• Both have the same energy.

• Neither, they are not related.

How many G3P molecules are needed to create one glucose molecule?

• 1

• 2

• 3

• 4

What is the initial molecule that carbon dioxide is fixed into during the Calvin cycle?

• Glucose

• RuBP

• G3P

• ATP

What is the energy source for the Calvin cycle?

• Sunlight

• ATP and NADPH

• Oxygen

• Carbon dioxide

What is the role of NADPH in the Calvin cycle?

• It releases oxygen as waste.

• It provides energy to form glucose.

• It accumulates in the thylakoid space.

• It regenerates RuBP.