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Bio 141 > Bio 141 Notes (3/04/14) > Flashcards

Bio 141 Notes (3/04/14) Flashcards

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1
Q

Glycolysis

A

Glucose - > 2 pyruvate (2x 3-C)

Sugar breaking down

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2
Q

Step 1 of Glycolysis

A

energy investment phase
energy source - phosphate
phosphates are added to glucose

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3
Q

Step 2 of Glycolysis

A

sokit one 6-C molecule into two 3-C molecules

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4
Q

Where does gylcolysis take place?

A

Cytoplasm

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5
Q

Glycolysis yields…

A

2 NADH

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6
Q

Glycolysis genetates ____ ATP?

A

4

net gain - 2

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7
Q

Substrate - level Phosphorylation

A

involves the immediate transfer of phosphate between molecules via an enzyme

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8
Q

Step 3 of Glycolysis

A

NADH - temporary carrier
energy payoff phase
-yields 2 NADH
-substrate level phosphorylation

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9
Q

Cellular Respiration

A

Glycolysis
Pyruvate Oxidation
Citric Acid Cycle
Oxidative Phosphorylation

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10
Q

Pyruvate oxidation

A

starts in cytoplasm
transport into mitochondrial matrix
One NADH produced
One carbon released as CO2

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11
Q

Pyruvate Oxidation Formula

A

Pyruvate (3-C) -> aceyl CoA + CO2 +NADH

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12
Q

Citric Acid Cycle

A

takes place in mitochondrial matrix

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13
Q

What releases electrons to membrane proteins?

A

NADH and FADH2

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14
Q

Oxidative Phosphorylation

A

NADH and FADH2 release electrons to membrane proteins
electron energy powers active transport
establishes a proton gradient

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15
Q

Electron Transport Chain

A

First Step of oxidative phsophorylation
makes the proton gradient
electons join with O2 and H+ to form water
oxygen serves as the ulltimate electron receptor

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16
Q

ATP Synthesis

A

Second Step of oxidative phsophorylation
uses the proton graident
fuels the major ATP yield of cellular respiration
one ATP produced for each H+ that crosses the membrane

17
Q

Oxidation Phosphorylation

A

oxidation coupled with ATP production

18
Q

Energy Carrier

A

NADH, FADH, NADPH

19
Q

Energy carriers in oxidized forms

A

NAD+, FAD, NADP+

20
Q

Potential for energy

A

High concentration

hydrogen ions are mutually repulsive

Bio 141 (46 decks)

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