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Biology Module 4 > Cellular Respiration > Flashcards

Cellular Respiration Flashcards

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1
Q

What is cellular respiration

A

aerobic harvesting of energy from food molecules by cells

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2
Q

What is the controlled breakdown of organic molecules

A

cellular respiration

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3
Q

Where is the energy used in cellular respiration stored>

A

ATP

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4
Q

What is it called when an molecule receives electrons

A

reduction

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5
Q

what is it called when a molecule gives away electrons

A

oxidation

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6
Q

whenever one molecule becomes oxidized another becomes …

A

reduced

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7
Q

What happens in dehydrogenase

A

coenzyme that removes hydrogen from an organic molecule

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8
Q

What is the first step of ATP

A

energy from food is used to push a third phosphate group into ADP

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9
Q

How is the energy from food stored in ATP

A

as a phosphate bond

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10
Q

What happens when the phosphate bond is broken

A

energy is released and ATP turns back to ADP

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11
Q

What is fermentation

A

an anaerobic energy generating process

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12
Q

What does fermentation produce

A

2 ATP and 1 NADH

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13
Q

What are the three steps of cellular respiration

A

Glycolysis
Citric Acid Cycle
ETC and chemoiosmosis

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14
Q

Where does glycolysis occur

A

in cytoplasm

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15
Q

What does glycolysis mark the start of?

A

cellular respiration

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16
Q

what does glycolysis break down glucose into

A

2 molecules of pyruvate

17
Q

Where does the citric acid cycle occur/

A

in the mitochondria

18
Q

what does the citric acid cycle generate?

A

NADH and FADH2

19
Q

What completes the oxidation of organic molecules

A

citric acid cycle

20
Q

What includes electron transport and chemoiosmosis

A

oxidative phosphorylation

21
Q

What does oxidative phosphorylation require (4)

A

adequate supply of oxygen
NADH and FADH2
Inner membrane of mitochondria
H+ ion gradient

22
Q

About how much ATP molecules does cell repiration produce

A

32 ATP per glucose molecule

23
Q

What compounds are produced form cell repiration

A

H2O and CO2

24
Q

Is Aerobic respiration highly efficient or less efficient

A

highly efficient

25
Q

Is anaerobic respiration highly efficient or less efficient

A

less efficient

26
Q

What type of cellular respiration requires oxygen

A

aerobic respiration

27
Q

what type of cellular respiration does not require oxygen

A

Anaerobic respiration

28
Q

What type of cellular respiration is used as a backup ATP method

A

anaerobic

29
Q

how is glucose used

A

primary source of sugar for respiration and fermentation

Biology Module 4 (6 decks)

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