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Biology > Cellular Respiration > Flashcards

Cellular Respiration Flashcards

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1
Q

the first step in cellular respiration that beings releasing energy stored in glucose

A

gycolosis

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2
Q

the carriers for energy and high energy electrons during GLYCOLYSIS are

A

ATP, NADH, FADH2

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3
Q

if Oxygen is not present, glycolysis is followed by

A

fermentation

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4
Q

name the 3 carbon molecules produced when glucose is broken in half during glycolysis

A

pyruvic acid (pyruvate)

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5
Q

since fermentation doesn’t require oxygen it is said to be

A

anaerobic

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6
Q

since cellular respiration requires oxygen it is said to be

A

aerobic

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7
Q

which high energy electron carrier us regenerated during fermentation that allows cells to continue to make ATP using glycolysis

A

NAD+

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8
Q

complete overall chemical equation for cellular respiration

A

C6H12)6 + 6O2 —> 6CO2 + 6H2Oh + Energy(ATP)

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9
Q

how are the photosynthesis equation and cellular respiration equation related

A

they are the opposite of one another

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10
Q

alcohol fermentation equation

A

NADH + pyruvate —> CO2 + Ethanol

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11
Q

lactic acid fermentation equation

A

NADH & pyruvate —> NAD+ & lactate

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12
Q

yeast uses this kind of fermentation to make bread dough rise

A

alcoholic

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13
Q

your muscle cells use this during rapid exercise when oxygen is low

A

lactic acid

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14
Q

why don’t you become intoxicated from eating bread if yeast uses alcoholic fermentation

A

the ethanol evaporates because of the high temperatures while baking in the oven

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15
Q

correct sequence of AEROBIC cellular respiration

A

Glycolysis, Krebs Cycle, ETC

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16
Q

where do carbon atoms in pyruvic acid end up following the Krebs Cycle

A

they become part of the CO2 molecule and end up in the atmosphere

17
Q

how many total ATP molecules are produced by 1 molecule of glucose completing aerobic cellular respiration

A

36

18
Q

what is produced during the Krebs Cycle

A

ATP, NADH, FADH2

19
Q

What molecule is the final electron acceptor at the end of ETC

A

oxygen

20
Q

why is water a product of aerobic respiration

A

h+ (hydrogen) atoms are added to oxygen and it joins together to make water

21
Q

what moves across the membrane from the intermembrane space to the matrix causes ATP synthase to spin and make ATP

A

H+ ions

22
Q

What stage of cellular respiration produces the most ATP? How much do each of them produce?

A

***ETC=32
Krebs Cycle=2
Glycolysis=2

23
Q

what happens as electrons pass down the ETC

A
  1. energy from the moving electrons transport H+ ions into the intermembrane space
  2. energy from the H+ ions crossing back into the matrix causes ATP synthase to make ATP
  3. water is produced
24
Q

the process of splitting glucose molecule into 2 pyruvic acid molecules

A

glycolysis

25
Q

the molecule used by cells to store and transfer energy

A

ATP

26
Q

a process with oxygen

A

aerobic

27
Q

without oxygen

A

anaerobic

28
Q

type of fermentation used by human muscles in low oxygen conditions and microorganisms to make yogurt, cheese, sauerkraut and kimchi

A

lactic acid

29
Q

as electrons pass down the electron transport chain, H+ ions build up in the ________ space

A

inner membrane

30
Q

what cycle breaks down pyruvic acid into CO2 and produces FADH, NADH, and ATP

A

Krebs cycle

31
Q

the NADH and FADH2 produced during the Krebs cycle pass their electrons down ______ to produce ATP

A

the electron transport chain

32
Q

the passage of H+ ions through ______ causes it to spin and produce ATP

A

ATP synthase

33
Q

cell organelle that acts as the cell’s power plant to burn glucose and store energy as ATP

A

mitochondria

34
Q

if O2 is not present, Glycolysis is followed by what

A

fermentation

35
Q

the carbon atoms in pyruvic acid end up as ____ in the atmosphere following the Krebs cylce

A

CO2

36
Q

the area inside the *cristae where the krebs cycle happens

A

matrix

Biology (21 decks)

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