11/10 EXAM Flashcards

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1
Q

Which of the following is NOT a stage of cellular respiration?

A

Fermentation

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2
Q

Which of the following is the correct sequence of events in cellular respiration?

A

glycolysis–> Krebs cycle–> electron transport

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3
Q

Which of the following is released during cellular respiration?

A

Energy

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4
Q

Cellular respiration uses one molecule of glucose to produce___

A

36 ATP molecules

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5
Q

What is the correct equation for cellular respiration?

A

6O2+ C6H12O6–> 6CO2+6H20+ Energy

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6
Q

Cellular respiration releases energy by breaking down

A

food molecules

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7
Q

What are the reactants in the equation for cellular respiration?

A

glucose and oxygen

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8
Q

Which of these is a product of cellular respiration?

A

water

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9
Q

Which of these processes takes place in the cytoplasm of a cell?

A

glycolysis

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10
Q

Glycolysis provides a cell with a net gain of

A

2 ATP molecules

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11
Q

The starting molecule for glycolysis is

A

glucose

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12
Q

Glycolysis requires

A

an energy input

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13
Q

Which of the following is NOT a product of glycolysis?

A

Glucose

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14
Q

Which of the following acts as an electron carrier in cellular respiration?

A

NAD+

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15
Q

Lactic Acid fermentation occurs in

A

muscle cells

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16
Q

The two main types of fermentation are called

A

alcoholic and lactic acid

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17
Q

One cause of muscle soreness is

A

lactic acid fermentation

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18
Q

Which process is used to produce beer and wine?

A

alcoholic fermentation

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19
Q

Milk is converted to yogurt under certain conditions when the microorganisms in the milk produce acid. Which of these processes would you expect to be key in production of yogurt?

A

lactic acid fermentation

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20
Q

During lactic acid fermentation, ____

A

NAD+ is regenerated, allowing glycolysis to continue

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21
Q

The conversion of pyruvic acid into lactic acid requires

A

NADH

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22
Q

In the presence of oxygen, glycolysis is followed by

A

the Krebs cycle

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23
Q

Cellular respiration is called an aerobic process because it requires

A

Oxygen

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24
Q

Which organism is NOT likely to carry out cellular respiration?

A

anaerobic bacterium

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25
Q

The starting molecules for the Krebs cycle is

A

Pyruvic acid

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26
Q

The Krebs cycle does not occur if

A

fermentation occurs

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27
Q

The Krebs cycle produces

A

electron carriers

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28
Q

The Krebs cycle starts with

A

pyruvic acid and yields carbon dioxide

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29
Q

The electron transport chain can be found in

A

all of the above
Prokaryotes, Animals, Plants

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30
Q

In eukaryotes, electron transport occurs in the

A

mitochondria

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31
Q

Which of the following passes high-energy electrons into the electron transport chain?

A

NADH and FADH2

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32
Q

Each pair of high-energy electrons that moves down the electron transport chain provides enough energy to

A

convert 3 ADP molecules into 3 ATP molecules

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33
Q

The energy of electrons passing along the electron transport chain is used to make

A

ATP

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34
Q

Breathing heavily after running a race is your body’s way of

A

repaying an oxygen debt

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35
Q

When the body needs to exercise for longer than 90 seconds, it generates ATP by carrying out

A

cellular respiration

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36
Q

If you want to control your weight, how long should you exercise aerobically each time that you exercise?

A

more than 20 minutes

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37
Q

The energy needed to win a 2-minute footrace is produced mostly by.

A

lactic acid fermentation

38
Q

Which statement mainly explains why even well-conditioned athletes have to pace themselves for athletic events that last several hours?

A

cellular respiration releases energy more slowly than fermentation does.

39
Q

All of the following are sources of energy during exercise EXCEPT

A

alcoholic fermentation

40
Q

Which process does NOT release energy from glucose

A

photosynthesis

41
Q

How are cellular respiration and photosynthesis almost opposite processes?

A

Photosynthesis removes carbon dioxide from the atmosphere, and cellular respiration puts it back.

42
Q

Photosynthesis is to chloroplasts as cellular respiration is to

A

mitochondria

43
Q

Unlike photosynthesis, cellular respiration occurs in

A

all eukaryotic cells

44
Q

Plants cannot release energy from glucose using

A

photosynthesis

45
Q

The products of photosynthesis are the

A

reactants of cellular respiration

46
Q

An oxidation-reduction reaction involves the transfer of a(n)

A

electron

47
Q

Which of the following is NOT a way that a molecule releases energy gained by absorption of a photon?

A

nuclear decay

48
Q

Oxygen is highly corrosive; therefore, which of the following would provide definitive evidence of large amounts of O2 in the atmosphere?

A

rust

49
Q

What are grana?

A

stacks of membranous sacs

50
Q

What is responsible for the yellow-orange coloration of leaves in the fall?

A

carotenoids

51
Q

The shorter the wavelength of visible light, the

A

greater the energy

52
Q

In photosynthesis, a H+ ion gradient forms across the

A

thylakoid membrane

53
Q

The products of the light reactions of photosynthesis is(are)

A

ATP and NADPH

54
Q

How many times must the Calvin cycle turn for the plant cell to be able to produce one molecule of glucose?

A

Six

55
Q

How do CAM plants conserve water?

A

by growing very deep roots

56
Q

Which reaction of cellular respiration is analogous to the light reaction of photosynthesis?

A

electron transport chain

57
Q

______ is to photosynthesis as ______ is to cellular respiration.

A

NADP+ . . . NAD+

58
Q

The ultimate source of (nearly) all energy in food produced on Earth is

A

sunlight

59
Q

What name is given to a discrete packet of light?

A

photon

60
Q

What is the primary mechanism by which CO2 contributes to global warming

A

by preventing the radiation of heat from Earth to space

61
Q

The energy of wavelengths that appear _____ are LEAST useful to photosynthesis

A

green

62
Q

_____ cells in leaves are specialized for photosynthesis

A

mesophyll

63
Q

Which of the following is the source of electrons for the light reactions?

A

H2O

64
Q

Where are the photosystems located?

A

thylakoid membrane

65
Q

How many molecules of glucose is (are) produced by each cycle of the light reaction?

A

zero

66
Q

Under arid conditions, C4 plants fix carbon dioxide more efficiently than C3 plants because C4 plants_________.

A

use ATP to fix carbon dioxide

67
Q

What is the function of stomata?

A

gas exchange

68
Q

Which of the following is NOT an autotroph?

A

mushroom

69
Q

The first cells to split water ______.

A

were prokaryotes

70
Q

The light reactions of photosynthesis convert ____ energy into _____ energy.

A

solar… chemical

71
Q

What name is given to the membranous sacs found within a chloroplast?

A

thylakoids

72
Q

Cutting down trees _____.

A

increases the amount of CO2 released into the atmosphere.

73
Q

The last stage of one complete turn of the Calvin cycle involves______.

A

regeneration of RuBP

74
Q

Through what structure do plants obtain most of their water?

A

roots

75
Q

How do C4 plants conserve water?

A

keeping their stomata closed for most of the time.

76
Q

A concentration gradient is a form of

A

potential energy

77
Q

In which organelle does photosynthesis take place?

A

chloroplast

78
Q

Plant cells that contain the organelle responsible for photosynthesis are concentrated in cells of the

A

mesophyll

79
Q

______ is the source of the oxygen gas released by a photosystem.

A

H2O

80
Q

When a molecule absorbs a photon, one of its electrons is raised to the _____ state.

A

exited

81
Q

One of the compounds that is a direct output of the Calvin cycle is ____.

A

G3P

82
Q

In photosynthesis, what is the immediate source of energy used to produce a proton gradient?

A

energy released as electrons are transferred from one carrier to another

83
Q

In photosynthesis, redox reactions ultimately transfer electrons from ____ to ______.

A

H2O….CO2

84
Q

The first step of the Calvin cycle is the incorporation of _____ into _____.

A

CO2…. RuBP

85
Q

Which of the following equations best summarizes photosynthesis?

A

6 CO2 + 6 H2O –> C6 H12 O6 + 6 CO2

86
Q

The first cells to release oxygen gas into the atmosphere were _____.

A

cyanobacteria

87
Q

What compound is found at the reaction center of a photosystem?

A

chlorophyll a

88
Q

Which of these colors contributes the LEAST amount of energy to photosynthesis?

A

green

89
Q

the light reactions of photosynthesis take place ____.

A

in the thylakoid membrane

90
Q

The Calvin cycle makes direct use of ____ to make _____.

A

CO2, ATP, and NADPH….. sugar