Photosynthesis Flashcards

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1
Q

What is the overall chemical equation for photosynthesis?

A

6CO2 + 6H2O + light energy -> C6H12O6 + 6O2

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2
Q

Where does photosynthesis take place in a plant cell?

A

In the chloroplasts

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3
Q

What are the two stages of photosynthesis?

A

Light-dependent reactions and light-independent reactions (Calvin cycle)

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4
Q

What is the primary pigment involved in photosynthesis?

A

Chlorophyll

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5
Q

What is the role of chlorophyll in photosynthesis?

A

To absorb light energy for the process

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6
Q

What is the source of oxygen produced during photosynthesis?

A

Water

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7
Q

What is the purpose of the light-dependent reactions in photosynthesis?

A

To produce ATP and NADPH

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8
Q

What is the purpose of the Calvin cycle in photosynthesis?

A

To produce glucose using ATP and NADPH

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9
Q

What is the role of carbon dioxide in photosynthesis?

A

To provide carbon for glucose production

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10
Q

What is the role of water in photosynthesis?

A

To provide electrons for the light-dependent reactions

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11
Q

What is the function of ATP in photosynthesis?

A

To provide energy for cellular processes

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12
Q

What is the function of NADPH in photosynthesis?

A

To provide reducing power for glucose production

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13
Q

What is the significance of photosynthesis in the ecosystem?

A

It is the primary source of energy for most living organisms

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14
Q

What are the factors that can affect the rate of photosynthesis?

A

Light intensity, carbon dioxide concentration, and temperature

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15
Q

What is the relationship between photosynthesis and cellular respiration?

A

They are complementary processes where the products of one are the reactants of the other

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16
Q

What is the role of stomata in photosynthesis?

A

To allow for gas exchange (CO2 in, O2 out)

17
Q

What is photolysis in photosynthesis?

A

The splitting of water molecules to release oxygen, electrons, and protons

18
Q

What is the role of the electron transport chain in the light-dependent reactions?

A

To generate a proton gradient for ATP production

19
Q

What is the role of rubisco in the Calvin cycle?

A

To catalyze the fixation of carbon dioxide

20
Q

What is the significance of the Calvin cycle in photosynthesis?

A

It is responsible for the production of glucose

21
Q

What is the role of NADP+ in photosynthesis?

A

To accept electrons and hydrogen ions to form NADPH

22
Q

What is the role of the thylakoid membrane in photosynthesis?

A

To house the components of the light-dependent reactions

23
Q

What is the fate of the glucose produced in photosynthesis?

A

It can be used for energy production, stored as starch, or converted into other molecules

24
Q

What are the end products of the light-dependent reactions?

A

ATP, NADPH, and oxygen

25
Q

What are the end products of the Calvin cycle?

A

Glucose and ADP

26
Q

What is the role of light in photosynthesis?

A

To provide energy for the process

27
Q

What is the role of the antenna complex in photosynthesis?

A

To absorb and transfer light energy to the reaction center

28
Q

What is the role of the reaction center in photosynthesis?

A

To initiate the flow of electrons in the light-dependent reactions

29
Q

What is the significance of photosynthesis for humans?

A

It provides oxygen for respiration and food for sustenance

30
Q

What is the role of ATP synthase in photosynthesis?

A

To produce ATP from ADP and inorganic phosphate using the proton gradient

31
Q

What is the importance of the Z scheme in photosynthesis?

A

It describes the flow of electrons in the light-dependent reactions

32
Q

Why is photosynthesis considered an endothermic reaction?

A

Because it requires an input of energy in the form of light

33
Q

What is the role of the enzyme RuBisCO in photosynthesis?

A

To catalyze the carboxylation of ribulose-1,5-bisphosphate in the Calvin cycle

34
Q

What is the role of the stroma in photosynthesis?

A

To house the enzymes for the Calvin cycle

35
Q

What is the role of the granum in photosynthesis?

A

To house the thylakoid membranes where the light-dependent reactions occur

36
Q

What is the role of the cytochrome complex in photosynthesis?

A

To transfer electrons between photosystems in the light-dependent reactions