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Bio Test Revison Flash Cards Ai > B6 - Photosynthesis > Flashcards

B6 - Photosynthesis Flashcards

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Biology 101 flashcards
1
Q

What is photosynthesis?

A

The process of making glucose using light, carbon dioxide, and water.

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2
Q

True or False: Photosynthesis occurs only in plants.

A

False

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3
Q

What is the primary pigment involved in photosynthesis?

A

Chlorophyll

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4
Q

Fill in the blank: Photosynthesis converts __________ energy into chemical energy.

A

light

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5
Q

What are the raw materials needed for photosynthesis?

A

Carbon dioxide, water, and light energy.

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6
Q

What is the main product of photosynthesis?

A

Glucose

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7
Q

In what organelle does photosynthesis take place?

A

Chloroplast

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8
Q

What gas is released as a byproduct of photosynthesis?

A

Oxygen

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9
Q

Multiple Choice: Which of the following is NOT a stage of photosynthesis? A) Light-dependent reactions B) Calvin cycle C) Krebs cycle

A

C) Krebs cycle

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10
Q

What is the role of sunlight in photosynthesis?

A

To provide the energy needed to convert carbon dioxide and water into glucose.

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11
Q

True or False: The Calvin cycle occurs during the night.

A

False

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12
Q

Fill in the blank: The __________ cycle is also known as the light-independent reactions.

A

Calvin

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13
Q

What is the formula for photosynthesis?

A

6CO2 + 6H2O + light energy → C6H12O6 + 6O2

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14
Q

What type of organisms perform photosynthesis?

A

Autotrophs

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15
Q

What is the significance of photosynthesis to life on Earth?

A

It produces oxygen and organic compounds that serve as food for other organisms.

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16
Q

Multiple Choice: Which part of the plant is primarily responsible for photosynthesis? A) Roots B) Leaves C) Stem

A

B) Leaves

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17
Q

What are thylakoids?

A

Membrane-bound structures within chloroplasts where the light-dependent reactions take place.

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18
Q

True or False: Photosynthesis is an endothermic reaction.

A

True

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19
Q

What is the role of water in photosynthesis?

A

It provides electrons and protons for the synthesis of glucose.

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20
Q

Fill in the blank: The __________ stage of photosynthesis captures sunlight.

A

light-dependent

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21
Q

What is the main function of the Calvin cycle?

A

To convert carbon dioxide into glucose.

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22
Q

Multiple Choice: What is produced during the light-dependent reactions? A) Glucose B) Oxygen C) Carbon dioxide

A

B) Oxygen

23
Q

What is the role of NADPH in photosynthesis?

A

It carries electrons and hydrogen ions to the Calvin cycle.

24
Q

True or False: Only green plants can perform photosynthesis.

A

False

25
Q

Fill in the blank: The __________ is the site of the Calvin cycle.

A

stroma

26
Q

What effect does increased carbon dioxide have on photosynthesis?

A

It generally increases the rate of photosynthesis, up to a certain point.

27
Q

What is photolysis?

A

The process of splitting water molecules using light energy during photosynthesis.

28
Q

Multiple Choice: Which of the following is a light-absorbing pigment? A) Carotenoids B) Hemoglobin C) Myoglobin

A

A) Carotenoids

29
Q

What are the two main stages of photosynthesis?

A

Light-dependent reactions and the Calvin cycle.

30
Q

True or False: Plants can perform photosynthesis without sunlight.

A

False

31
Q

Fill in the blank: The __________ reaction of photosynthesis requires light.

A

light-dependent

32
Q

What is the role of ATP in photosynthesis?

A

It provides energy for the reactions in the Calvin cycle.

33
Q

What is a stoma?

A

A small opening on the leaf surface that allows gas exchange.

34
Q

Multiple Choice: Which gas is absorbed during photosynthesis? A) Oxygen B) Carbon dioxide C) Nitrogen

A

B) Carbon dioxide

35
Q

What is the relationship between photosynthesis and cellular respiration?

A

Photosynthesis produces glucose and oxygen, which are used in cellular respiration to produce energy.

36
Q

True or False: Photosynthesis can occur in the dark.

A

False

37
Q

Fill in the blank: The __________ is the fluid-filled space inside chloroplasts.

A

stroma

38
Q

What is the function of chloroplasts in plant cells?

A

To conduct photosynthesis.

39
Q

What happens to the glucose produced during photosynthesis?

A

It can be used for energy or stored as starch.

40
Q

Multiple Choice: Which of the following factors does NOT affect the rate of photosynthesis? A) Light intensity B) Temperature C) Soil type

A

C) Soil type

41
Q

What role do chloroplasts play in the color of leaves?

A

Chloroplasts contain chlorophyll, which reflects green light.

42
Q

True or False: All wavelengths of light are equally effective for photosynthesis.

A

False

43
Q

Fill in the blank: The __________ reaction produces ATP and NADPH.

A

light-dependent

44
Q

What is the significance of the oxygen produced in photosynthesis?

A

It is essential for the respiration of most living organisms.

45
Q

Multiple Choice: During which phase of photosynthesis is glucose formed? A) Light-dependent reactions B) Calvin cycle C) Photolysis

A

B) Calvin cycle

46
Q

What is the role of light in the light-dependent reactions?

A

To excite electrons and facilitate the conversion of light energy to chemical energy.

47
Q

True or False: All plants have the same efficiency in photosynthesis.

A

False

48
Q

Fill in the blank: __________ is the process by which plants convert light energy into chemical energy.

A

Photosynthesis

49
Q

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

A

To transfer electrons and generate ATP and NADPH.

50
Q

Multiple Choice: Which of the following is the end product of the Calvin cycle? A) Oxygen B) Glucose C) ATP

A

B) Glucose

51
Q

What is the primary source of energy for photosynthesis?

A

Sunlight

52
Q

True or False: The Calvin cycle can occur without light.

A

True

53
Q

Fill in the blank: __________ is produced during the light-dependent reactions and used in the Calvin cycle.

A

NADPH

54
Q

What is the role of RuBisCO in photosynthesis?

A

To catalyze the first step of the Calvin cycle by fixing carbon dioxide.

Bio Test Revison Flash Cards Ai (7 decks)

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