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Exam 3 Cell Biology > photosynthesis > Flashcards

photosynthesis Flashcards

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1
Q

True or False. The two products of photosynthesis that exit a chloroplast are
oxygen and ATP.

A

False

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2
Q

• CO2 + H2O + light energy →(CH2O)n + O2

A

equasion for photosynthesis

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3
Q

In photosynthesis, where does oxygen gas come from?

A

The splitting of water

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4
Q

equasion for photosynthesis

A

• CO2 + H2O + light energy →(CH2O)n + O2

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5
Q

What is reduced in photsynthesis and what is it reduced to?

A

CO2 to glucose

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6
Q

What is oxidized in photosynthesis and what is it oxidized into?

A

H20 into O2

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7
Q

Where does photsynthesis occur in the plant

A

the chloroplast

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8
Q

what are grana

A

stacks of thylakoid membranes

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9
Q

what is a thylakoid membrane

A

internal membrane arranged in flattened sacs

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10
Q

What specific pigment does the thylakoid membrane contain

A

chlorophyll

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11
Q

What is stroma

A

semiliquid substance surrounding thylakoid membranes

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12
Q

what is lumen

A

interior of thylakoid: also called the thylakoid space

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13
Q

What is represented by the green “1”?

A

The Calvin Cycle

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14
Q

Is the calvin cycle a light dependent or a light independent reaction?

A

independent

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15
Q

What is represented by the yellow arrow?

A

light

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16
Q

What is represented by the yellow star?

A

ATP

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17
Q

What is represented by the yellow rectangle?

A

NADPH

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18
Q

What is represented by the blue circle?

A

H2O

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19
Q

What is represented by the gray circle?

A

CO2

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20
Q

What is the red arrow pointing to?

A

Thylakoid

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21
Q

What is represented by the green star?

A

ADP+P

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22
Q

What is represented by the green rectangle?

A

NADP+

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23
Q

What is represented by the red circle?

A

O2

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24
Q

Is the left side of the diagram a light depented or light independent reaction

A

Dependent

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25
Q

What is represented by the light blue box at the bottom of the diagram?

A

CH2O

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26
Q

During the light dependent reaction in photosynthesis, what is reduced and what is oxidized?

A

H2O is oxidized to O2 and NADP+ is redued to NADPH

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27
Q

During the light independent reaction in photosynthesis, what is reduced and what is oxidized?

A

Co2 is reduced to CH2O and NADPH is oxidzed to NADP+

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28
Q

The energy plants absorb from light is converted into what?

A

Potential energy

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29
Q

What is a photon?

A

a particle of light that acts as a discrete bundle of energy

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30
Q

Oxygen is a wate product of what reaction?

A

Light dependent

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31
Q

The light dependent reactions of photosynthesis are responsible for the production of

A

ATP and NADPH

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32
Q

Photons with shorter waveleghnths have what compared to photons with langer wavelegnths?

A

more energy

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33
Q

During photosynthesis, electrons extracted from ____ during the light reactions eventually turn up in the ____ made during the Calvin cycle.

A

Water; sugar

34
Q

Where do plants get the maority of their matter from?

A

the air

35
Q

True or False. Photosystem I produces ATP and Photosystem II produces NADPH

A

False

36
Q

Carbon fixation occurs when a molecule of CO2 reacts with a molecule of

A

RuBP

37
Q

Photoelectric effect

A

•A beam of light is able to remove electrons from certain molecules, creating an electrical current.

38
Q

What is a photosystem

A

A light-capturing system of molecules embedded in the thylakoid membrane

39
Q

What is represented by the highlighted arrow?

A

increasing energy of electrons

40
Q

Wht is represented by the purple a and the purple b?

A

Photosysem 2 and 1

41
Q

What is represented by the green dots?

A

electrons

42
Q

What is represented by the red lind and the red box?

A

The red line represents NADP+ and H+.

The red box represents NADP reductase

43
Q

What does the blue line and the blue oval represent?

A

The blue circle represents H20 and the blue line represents 2H+ and .5 O2

44
Q

What does the purple box represent?

A

NADPH

45
Q

•Photophosphorylation

A

–The phosphorylation of ADP to form ATP using the energy of sunlight

46
Q

What is 14?

A

Electrons lost by photosystem II are replaced by the oxidation of O2

47
Q

What is 15?

A

Photons of light hit Photosystem I and electrons are ejected out via photelectric effect

48
Q

What is 1?

A

photon

49
Q

What is 2?

A

electron

50
Q

What is 3?

A

H2O

51
Q

What is 4?

A

.5O2

52
Q

What is 5?

A

2 H+

53
Q

What is 6?

A

protons

54
Q

What is 7?

A

ADP +P

55
Q

What is 8?

A

ATP

56
Q

What is 9?

A

NADP+

57
Q

What is 10?

A

NADPH

58
Q

What is 11?

A

Photosystem II

59
Q

What is 12?

A

Photosystem I

60
Q

What is 13?

A

ATP Synthase

61
Q

What does the light independent reaction do to carbon?

A

fixates it into sugar

62
Q

What is the most important enzyme on earth?

A

Rubisco

63
Q

What fixes CO2 into sugar?

A

Rubisco

64
Q

What is 1?

A

Calvin Cycle

65
Q

What is 2?

A

carbon fixation

66
Q

What is 3?

A

Reduction

67
Q

What is 4?

A

Regeneration of RuBisco

68
Q

What is 5?

A

Rubisco

69
Q

What is 6?

A

Rubisco

70
Q

What is 7?

A

Regeneration of Rubisco

71
Q

What is 9?

A

(PGA) Photphoglycerate

72
Q

What is 8?

A

CO2

73
Q

What is 10?

A

ATP

74
Q

What is 11?

A

ADP+P

75
Q

What is 12?

A

NADPH

76
Q

What is 13?

A

G3P (PGA is reduced to G3P)

77
Q

What is 14?

A

G3P

78
Q

What is 15?

A

GLucose

79
Q

What is 16?

A

G3P

80
Q

What is 17?

A

ATP

81
Q

What is 18?

A

ADP+P

82
Q

3 phases of the calvin cycle

A
  1. Carbon fixation
  2. Reduction
  3. Regeneration of RuBP from G3P— requires ATP

Exam 3 Cell Biology (5 decks)

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