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Freshman year > Cellular Respiration Quiz > Flashcards

Cellular Respiration Quiz Flashcards

1
Q

ATP

A

Adenosine Triphosphate

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2
Q

CR equation

A

glucose + 6O2 –> —> —> 6CO2 + 6H2O + ATP

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3
Q

max ATP CR can produce

A

38 ATP

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4
Q

is glycolysis aerobic or anaerobic?

A

anaerobic

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5
Q

where does glycolysis take place?

A

cytoplasm

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6
Q

1 glucose forms how many pyruvate in glycolysis?

A

2 pyruvate

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7
Q

Where is krebs cycle?

A

mitochondrial matrix

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8
Q

pyruvate is ______ to be converted to acetic acid

A

oxidized - remove oxygen in form of CO2

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9
Q

How does NAD+ become NADH?

A

when bonds of pyruvic acid are broken, the electrons are donated to it and it becomes NADH

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10
Q

acetic acid + _____ = Acetyl-CoA

A

coenzyme A

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11
Q

is krebs cycle aerobic or anaerobic?

A

aerobic

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12
Q

yield of krebs cycle

A

2 ATP, 6 NADH, 2 FADH2 (coenzyme) and 4C02 released

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13
Q

input of krebs cycle

A

Acetyl CoA

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14
Q

what is released during krebs cycle?

A

4 CO2

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15
Q

ETC location

A

inner mitochondrial membrane

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16
Q

is ETC aerobic or anaerobic?

A

aerobic

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17
Q

Does NADH or FADH2 produce more ATP?

A

NADH- electrons are dropped off earlier in the ETC

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18
Q

what pulls electrons down the ETC

A

oxygen

19
Q

what is the energy released during the “fall” of electrons used for?

A

pumping hydrogen ions across the membrane (creates gradient)

20
Q

how is ATP formed?

A

Hydrogen ions moving from high to low concentration thru enzyme ATP synth. create ATP from ADP by adding a phosphate

21
Q

chemiosmosis

A

protons travel down electrochemical gradient thru ATP synth. —> ATP

22
Q

what is the FINAL electron acceptor in aerobic CR?

A

oxygen

23
Q

oxygen combines with two hydrogens to make…

A

6 water (H2O)

24
Q

range of ATP made/glucose

A

30-38

25
Q

substrate level phosphorylation

A

direct production of ATP - when phosphate is transferred from substrate —> ADP —> ATP
- in glycolysis and Krebs

26
Q

ADP

A

adenosine diphosphate

27
Q

AMP

A

adenosine monophosphate (looks very sim to a nucleotide)

28
Q

glycolysis reactants and products

A

reactants: 1 glucose
products: 2 ATP, 2 NAD+, 2 pyruvate

29
Q

transition reaction

A

in between step of glycolysis and Krebs
location: cytoplasm
reactants: pyruvate and coenzyme A
products: acetyl CoA and NADH

30
Q

ETC reactants and products

A

reactants: NADH, FADH2, 6O2, H+ ions, ATP synthase
products: 6H20, 30-38 ATP

31
Q

chemiosmosis in ETC

A

electrons moving down ETC release energy —> energy used to pump H+ ions out. THEN with diffusion they travel ACROSS membrane thru ATP synthase - ATP

32
Q

true/false - fermentation does not perform glycolysis

A

false- both alcoholic and lactic acid fermentation ONLY perform glycolysis

33
Q

alcoholic fermentation’s reactants and products

A

glucose —-> 2 pyruvate + 2 ATP + 2 NADH —> 2 ethanol (alcohol) and Co2

34
Q

lactic acid fermentation happens when?

A

when muscle cells are not getting enough oxygen

35
Q

lactic acid fermentation reactants and products

A

glucose —> 2 pyruvate + 2 ATP + 2 NADH —> 2 lactate (lactic acid)

36
Q

what does lactic acid do to your muscles?

A

makes them sore bc it is a toxin that builds up during anaerobic respiration and needs to be browk down

37
Q

is lactic acid fermentation efficient?

A

no- it only makes 2 ATP so it will not allow muscles to keep performing for very long after this process has started

38
Q

what is final electron acceptor in lactic acid fermentation?

A

pyruvate

39
Q

kinetic energy

A

energy of motion

40
Q

potential energy

A

energy that is STORED for usage later
e.g. H+ gradient

41
Q

conservation of energy states…

A

energy cannot be created nor destroyed

42
Q

oxidation-reduction-reactions (RedOx reactions)

A

loss/gain of electrons

43
Q

What part of CR releases THE MOST c02?

A

krebs cycle

44
Q
A

Freshman year (28 decks)

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