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Biology Unit 2 > Photosyntheses > Flashcards

Photosyntheses Flashcards

1
Q

What is the primary function of photosynthesis?

A

To convert light energy into chemical energy in the form of glucose.

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2
Q

Which organelle is responsible for photosynthesis in plant cells?

A

Chloroplast.

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3
Q

What are the two main stages of photosynthesis?

A

Light-dependent reactions and the Calvin cycle.

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4
Q

True or False: Photosynthesis occurs only during the day.

A

True.

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5
Q

What pigment is primarily responsible for capturing light energy?

A

Chlorophyll.

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6
Q

Fill in the blank: The overall equation for photosynthesis is 6CO2 + 6H2O + light energy → C6H12O6 + _____

A

6O2.

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7
Q

Where do the light-dependent reactions take place?

A

In the thylakoid membranes of the chloroplasts.

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8
Q

What is produced as a byproduct of the light-dependent reactions?

A

Oxygen.

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9
Q

Which gas is taken in by plants during photosynthesis?

A

Carbon dioxide.

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10
Q

What is the main product of the Calvin cycle?

A

Glucose.

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11
Q

True or False: ATP and NADPH are produced during the Calvin cycle.

A

False.

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12
Q

What is the role of water in photosynthesis?

A

It provides electrons and protons and releases oxygen.

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13
Q

Which type of light is most effective for photosynthesis?

A

Red and blue light.

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14
Q

What factors can affect the rate of photosynthesis?

A

Light intensity, carbon dioxide concentration, and temperature.

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15
Q

Fill in the blank: The process of converting light energy into chemical energy involves the formation of _____ and NADPH.

A

ATP.

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16
Q

What is photolysis?

A

The process of splitting water molecules during the light-dependent reactions.

17
Q

What is the significance of the stomata in photosynthesis?

A

They allow the exchange of gases, including the intake of CO2 and release of O2.

18
Q

True or False: All plants perform photosynthesis.

A

False; some plants, like parasitic plants, do not.

19
Q

What is the role of ribulose bisphosphate (RuBP) in the Calvin cycle?

A

It acts as a carbon dioxide acceptor.

20
Q

Which enzyme catalyzes the fixation of carbon dioxide in the Calvin cycle?

A

Rubisco.

21
Q

What happens to the glucose produced during photosynthesis?

A

It can be used for energy, stored as starch, or used to build other organic molecules.

22
Q

Fill in the blank: The light-dependent reactions convert _____ energy into chemical energy.

A

Solar.

23
Q

True or False: Photosynthesis is an endothermic process.

A

True.

24
Q

What is the role of NADP+ in photosynthesis?

A

It acts as a carrier for electrons and protons, becoming NADPH.

25
Q

What is the main purpose of the Calvin cycle?

A

To synthesize glucose from carbon dioxide using ATP and NADPH.

26
Q

Which plant structure is primarily responsible for photosynthesis?

A

Leaves.

Biology Unit 2 (1 decks)

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