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Biol Midterm 2 > Lecture 10-Glycolysis > Flashcards

Lecture 10-Glycolysis Flashcards

1
Q

Where does glycolysis occur?

A

Cytoplasm

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2
Q

Write the overall equation of cellular respiration

A

C6H12O6 + 6O2–> 6CO2 +6H2O+Energy

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3
Q

What is the main goal of glycolysis?

A

Load electron carriers with potential

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4
Q

Why does respiration work in small steps?

A

To not waste energy

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5
Q

Name the 4 stages of cell respiration

A
  1. glycolysis
  2. pyruvate oxidation
  3. citric acid cycle
  4. oxidative phosphorylation
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6
Q

What are the three substrate-level phosphorylation stages?

A
  1. glycolysis
  2. pyruvate oxidation
  3. citric acid cycle
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7
Q

What is the oxidative phosphorylation stage?

A

electron transport chain

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8
Q

How many steps does glycolysis have?

A

10 redox reactions

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9
Q

How many steps does phase 1 of glycolysis have?

A

3

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10
Q

Write out the first three steps of glycolysis

A

Glucose—(ATP->ADP + P + ENERGY)–> SMTH—->SMTH—(ATP->ADP + P + ENERGY)—> SMTH

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11
Q

What is the outcome of phase 1 of glycolysis?

A

Added phosphate to glucose

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12
Q

Is the outcome of phase 1 of glycolysis endergonic or exergonic?

A

endergonic

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13
Q

What is the name for phase 2 of glycolysis?

A

cleavage

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14
Q

What steps are in phase 2 of glycolysis?

A

4 and 5

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15
Q

What is the outcome of phase 2 of glycolysis?

A

the 6 carbon sugar becomes 2 3-carbon molecules

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16
Q

What steps are in phase 3 of glycolysis?

A

6-10

17
Q

What happens to NAD+ in phase 3 of glycolysis?

A

Added phosphate energy turns NAD+ to NADH

18
Q

What happens to ADP from phase 1 in phase 3 of glycolysis?

A

Turns back into ATP

19
Q

What is the final outcome of phase 3 of glycolysis?

A

2 pyruvate, 4 ATP, 2 NADH

20
Q

Where does pyruvate oxidation happen?

A

matrix

21
Q

What does pyruvate turn into?

A

Acetyl COA

22
Q

What are the outputs of pyruvate?(3)

A

CO2, NADH, Acetyl COA

23
Q

What is the input for pyruvate oxidation?

A

coenzyme A

24
Q

What structure converts pyruvate to Acetyl COA?

A

pyruvate dehydrogenase complex

25
Q

Define oxidized

A

Lose electron

26
Q

Define reduced

A

Gain electron

27
Q

What does the structure of NAD+ and NADH resemble?

A

nucleotide structure

28
Q

Name all the inputs of the citric acid cycle(6)

A

H2O, NAD+, FAD, ADP+ P, Acetyl COA, enzymes

29
Q

What is the most important outputs of the citric acid cycle?

A

NADH and FADH2

30
Q

How are the intermediates of certain amino acids in the citric acid cycle determined?

A

by feedback loop

31
Q

What is PFK

A

Enzyme that catalyzes step 3 of glycolysis

Biol Midterm 2 (9 decks)

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