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Edi > Photosynthesis > Flashcards

Photosynthesis Flashcards

1
Q

What is photosynthesis?

A

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.

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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 Calvin cycle (light-independent reactions).

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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 is the primary pigment used in photosynthesis?

A

The primary pigment used in photosynthesis is chlorophyll.

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5
Q

What is the role of light in photosynthesis?

A

Light is required in photosynthesis to provide energy for the process.

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6
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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7
Q

What are the products of photosynthesis?

A

The products of photosynthesis are glucose (C6H12O6) and oxygen (O2).

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8
Q

What is the source of the oxygen released during photosynthesis?

A

The oxygen released during photosynthesis comes from the splitting of water molecules.

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9
Q

What is the role of ATP and NADPH in photosynthesis?

A

ATP and NADPH are energy-carrying molecules that provide the necessary energy for the Calvin cycle.

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10
Q

What is the function of the Calvin cycle?

A

The Calvin cycle is responsible for the synthesis of glucose from carbon dioxide using ATP and NADPH.

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11
Q

True or False: Photosynthesis only occurs in plants.

A

False. Photosynthesis also occurs in algae and some bacteria.

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12
Q

What is the role of stomata in photosynthesis?

A

Stomata are small openings on the surface of leaves that allow for the exchange of gases during photosynthesis.

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13
Q

What is the importance of photosynthesis in the ecosystem?

A

Photosynthesis is crucial in the ecosystem as it is the primary source of energy for most living organisms.

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14
Q

What factors can affect the rate of photosynthesis?

A

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

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15
Q

What is the role of the thylakoid membrane in photosynthesis?

A

The thylakoid membrane is where the light-dependent reactions of photosynthesis take place, including the synthesis of ATP and NADPH.

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16
Q

What is the significance of the Calvin cycle in photosynthesis?

A

The Calvin cycle is essential for converting carbon dioxide into glucose, which serves as a source of energy for the plant.

17
Q

What is the relationship between photosynthesis and cellular respiration?

A

Photosynthesis produces glucose and oxygen, which are used in cellular respiration to produce ATP and carbon dioxide.

18
Q

What role do pigments play in photosynthesis?

A

Pigments such as chlorophyll absorb light energy during photosynthesis and transfer it to the reaction center.

19
Q

What is the importance of photosynthesis in the carbon cycle?

A

Photosynthesis is crucial in the carbon cycle as it removes carbon dioxide from the atmosphere and converts it into organic compounds.

20
Q

How does the wavelength of light affect photosynthesis?

A

Different wavelengths of light can affect the rate of photosynthesis, with red and blue light being most effective due to their absorption by chlorophyll.

21
Q

What is the role of rubisco in photosynthesis?

A

Rubisco is an enzyme that catalyzes the fixation of carbon dioxide during the Calvin cycle.

22
Q

What is the role of the electron transport chain in photosynthesis?

A

The electron transport chain is responsible for generating ATP and NADPH during the light-dependent reactions of photosynthesis.

23
Q

What is the significance of photosynthesis in providing oxygen for aerobic respiration?

A

Photosynthesis produces oxygen as a byproduct, which is essential for aerobic respiration in plants and animals.

24
Q

What is the role of the light-harvesting complex in photosynthesis?

A

The light-harvesting complex is responsible for capturing light energy and transferring it to the reaction center in photosynthesis.

Edi (2 decks)

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