Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

AAA BIO108: General Physiology > 2c. Cellular Respiration > Flashcards

2c. Cellular Respiration Flashcards

(52 cards)

Start Studying
1
Q

Anaerobic respiration that happens in cytosol

A

glycolysis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

4 metabolic stages

A

glycolysis
pyruvate oxidation
krebs cycle
electron transport chain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

happens in mitochondria and requires oxygen

A

aerobic respiration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

C6H12O6 + 6O2 =

A

ATP + 6H2O (+heat)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

step-by-step breakdown of high energy glucose molecules to release energy

A

cellular respiration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

splitting of sugar

A

glycolysis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

migration from cytosol to matrix

A

grooming phase

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

also called chemiosmosis and happens in inner mitochonrial membrane

A

Electron Transport Chain and Oxidative Phosphorylation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

energy currency of cells

A

ATP

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What happens when a phosphate group is pulled away during a chemical reaction?

A

energy is released

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

this cycle is the fundamental mode of energy exchange in biological systems

A

ATP-ADP Cycle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

how many ATP is produced for every 1 glucose

A

2 ATP

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

first cells had no organelles

A

prokaryotes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

glycolysis
convert:
produces:
consumes:
net:

A

convert glucose (6C) to 2 pyruvate (3C)
prduces 4 ATP & 2 NADH
consumes 2 ATP
net 2 ATP & 2 NADH

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

1st half of glycolysis is called

A

glucose “priming”

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

what happens during priming

A
  • get glucose ready to split
  • split destabilized gl
    ucose
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

what is the 2nd half of glycolysis

A

energy harvest

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

what happens during energy harvest

A
  • NADH production
  • ATP production
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

what happens during NADH production

A
  • G3P donates H
  • oxidize sugar
  • reduce NAD+
  • NAD+ to NADH
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

what happens during ATP production

A
  • G3P to pyruvate
  • PEP sugar donates P
    *ADP to ATP
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

DHAP

Study These Flashcards
A

dihydroxyacetone phosphate

22
Q

G3P

Study These Flashcards
A

glyceraldehyde-3-phosphate

23
Q

In the last steps of glycolysis, where did the P
come from to make ATP?

Study These Flashcards
A

the sugar substrate (PEP)

24
Q

P is transferred
from
§ kinase enzyme
§ ADP - ATP

25
26
5 reactions of glucose priming
hexokinase phosphoglucose isomerase phosphofructokinase aldolase, isomerase glyceraldehyde-3-phosphate dehydrogenase
27
5 reactions for energy harvest
phosphoglycerate kinase phosphoglyceromutase enolase pyruvate kinase
28
How ATP is formed?
formed when an enzyme transfers a phosphate group from a substrate to ADP
29
more carbons to strip off =
more energy to harvest
30
glycolysis plits a glucose molecule into 2 - 3 Carbon molecules called
pyruvate
31
glycolysis products
2 ATP, NADH and pyruvate
32
How is NADH recycled to NAD+?
another molecule must accept H from NADH • with oxygen aerobic respiration • without oxygen anaerobic respiration fermentation
33
Fermentation is an aerobic process • bacteria, yeast pyruvate - __ + __
pyruvate - ethanol + CO2 3C. 2C. 1C
34
animals, some fungi pyruvate - __
pyruvate + lactic acid 3C. 3C to glycolysis
35
dead end process at estimately what percent of ethanol kills yeast
12
36
alcohol fermentation can't reverse reaction
.
37
reversible process
once O2 is available, lactate is converted back to pyruvate by the liver
38
allow H+ to flow through ATP synthase
ATP synthase
39
ADP + Pi - ___
ATP
40
Pyruvate enters mitochondria 3 step oxidation process
•releases 1 CO2 (count the carbons!) •reduces 2 NAD - 2 NADH (moves e- ) •produces acetyl CoA
41
Acetyl CoA enters Krebs cycle
Oxidation of Pyruvate
42
Pyruvate oxidized to Acetyl CoA
2 x [ Yield = 2C sugar + NADH + CO2]
43
Energy accounting of Krebs cycle
Net gain = 2 ATP = 8 NADH + 2 FADH2
44
If the yield is only 2 ATP then how was the Krebs cycle an adaptation?
– value of NADH & FADH2 • electron carriers & H carriers – reduced molecules move electrons – reduced molecules move H+ ions • to be used in the Electron Transport Chain
45
series of molecules built into inner mitochondrial membrane • along cristae • transport proteins & enzymes
electron transport chain
46
how many ATP yields from ETC from 1 glucose
34 ATP
47
what “pulls” the electrons down the ETC?
oxidative phosphorylation
48
Stripping H from Electron Carriers
NADH passes electrons to ETC
49
Allow the protons to flow through ATP synthase
proton-motive force
50
The diffusion of ions across a membrane
chemiosmosis
51
Proposed chemiosmotic hypothesis
Peter Mitchell
52
What is the final electron acceptor in Electron Transport Chain?
O2

AAA BIO108: General Physiology (12 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions