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Biology 20 > Photosynthesis > Flashcards

Photosynthesis Flashcards

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1
Q

What is photosynthesis?

A

Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy into chemical energy stored in glucose.

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2
Q

What are the two main stages of photosynthesis?

A

The two main stages of photosynthesis are the light-dependent reactions and the light-independent reactions (Calvin cycle).

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3
Q

Where does photosynthesis take place in plants?

A

Photosynthesis takes place in the chloroplasts of plant cells.

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4
Q

What are the inputs of photosynthesis?

A

The inputs of photosynthesis are carbon dioxide, water, and light energy.

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5
Q

What are the outputs of photosynthesis?

A

The outputs of photosynthesis are oxygen and glucose.

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6
Q

What pigment is responsible for capturing light energy in photosynthesis?

A

Chlorophyll is the pigment responsible for capturing light energy in photosynthesis.

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7
Q

What is the primary function of the light-dependent reactions in photosynthesis?

A

The primary function of the light-dependent reactions is to capture and convert light energy into chemical energy in the form of ATP and NADPH.

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8
Q

What is the primary function of the Calvin cycle in photosynthesis?

A

The primary function of the Calvin cycle is to use ATP and NADPH to convert carbon dioxide into glucose.

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9
Q

True or False: Photosynthesis occurs only in plants.

A

False. Photosynthesis also occurs in algae and some bacteria.

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10
Q

What gas is released as a byproduct of photosynthesis?

A

Oxygen gas is released as a byproduct of photosynthesis.

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11
Q

What is the role of water in photosynthesis?

A

Water is split during the light-dependent reactions to provide electrons for the photosynthetic process.

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12
Q

What is the overall chemical equation for photosynthesis?

A

The overall chemical equation for photosynthesis is 6CO2 + 6H2O + light energy → C6H12O6 + 6O2.

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13
Q

What is the importance of photosynthesis in the ecosystem?

A

Photosynthesis is essential for producing oxygen, providing food for organisms, and maintaining the balance of carbon dioxide in the atmosphere.

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14
Q

Which part of the chloroplast is responsible for the light-dependent reactions?

A

The thylakoid membrane is responsible for the light-dependent reactions in photosynthesis.

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15
Q

What is the primary purpose of photosynthesis for plants?

A

The primary purpose of photosynthesis for plants is to produce glucose for energy and growth.

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16
Q

What is the role of ATP and NADPH in photosynthesis?

A

ATP and NADPH are used in the Calvin cycle to convert carbon dioxide into glucose.

17
Q

What factors can affect the rate of photosynthesis?

A

Factors that can affect the rate of photosynthesis include light intensity, temperature, and the availability of water and carbon dioxide.

18
Q

What is the function of the stomata in photosynthesis?

A

The stomata regulate the exchange of gases, such as carbon dioxide and oxygen, during photosynthesis.

19
Q

What is the role of rubisco in photosynthesis?

A

Rubisco is an enzyme that catalyzes the first step of the Calvin cycle, where carbon dioxide is fixed into a stable form.

20
Q

How does photosynthesis contribute to the carbon cycle?

A

Photosynthesis removes carbon dioxide from the atmosphere and converts it into organic compounds, playing a key role in the carbon cycle.

21
Q

What is the relationship between photosynthesis and cellular respiration?

A

Photosynthesis produces glucose and oxygen, which are used as inputs in cellular respiration to generate ATP for cellular energy.

22
Q

What environmental impact does photosynthesis have on reducing global warming?

A

Photosynthesis helps reduce global warming by removing carbon dioxide from the atmosphere and producing oxygen, which balances greenhouse gas levels.

23
Q

What is the significance of photosynthesis in agriculture?

A

Photosynthesis is crucial in agriculture as it provides the basis for plant growth, crop yield, and food production for human consumption.

24
Q

What is the role of light in photosynthesis?

A

Light energy is absorbed by chlorophyll and converted into chemical energy during photosynthesis.

Biology 20 (1 decks)

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