Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Biology: Cells And Molecules > Cellular Respiration > Flashcards

Cellular Respiration Flashcards

1
Q

What are the products and reactants for cellular respiration?

A

Glucose and oxygen yields carbon dioxide, water and energy

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

What are the 3 main steps in cellular respiration?

A

Glycolysis, pyryvate processing and citric acid cycle

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

What are the end products of glycolysis?

A

ATP, NADH water and 2 pyruvates

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

What is needed to run glycolysis?

A

NAD +

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

What is glucose broken down to in the glycolysis stage?

A

This is the step where the glucose (6 -carbon compound) is broken down into two 3-carbon compounds

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

What is the problem with glycolysis?

A

It doesn’t make too much ATP, only 2 ATP is made from 1 glucose

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

Where does the making of ATP occur?

A

At the substrate phosphorylation level

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

What does phosphorylating use?

A

Enzymes called kinases

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

What needs to happen to the pyruvates?

A

They need to be oxidized

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

What needs to be released for pyruvate processing to occur?

A

Carbon dioxide

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

What does the oxidation of one pyruvate result in?

A

2 carbon molecules being fed into the citric acid cycle

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

What does fermentation do?

A

Regenerates NAD + in the absence of oxygen

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

What does the oxidation of one pyruvate result in?

A

2 carbon molecules being fed into the citric acid cycle

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

What does citrate do?

A

Shuts down/slows down glycolysis

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

What is the regulator used in the citric acid cycle called?

A

Citrate

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

What does the citric acid cycle produce for one pyruvate? eg. one turn

A

3 NADAH 2, one FADAH 2 and one ATP

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

How many times does the citric acid cycle have to process?

A

2 times

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

What does the citric acid cycle produce for every 2 turns?

A

Six NADAH 2, two FADAH 2 and 2 ATP

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What starts the citric acid cycle?

A

Aceytl coa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What is the main goal of the citric acid cycle?

A

Making energy carriers

21
Q

What is the final accepter of electrons in the electron transport chain?

22
Q

What does H have to go through for the electron transport chain to occur?

A

ATP synthase

23
Q

How much ATP is made during oxidative phosphorylation?

A

About 36 ATP is made

24
Q

What is chemiosmosis?

A

When it goes from high H concentration to low H concentration

25
What is the electron transport chain?
Bouncing of electrons around
26
What would happen without fermentation?
Without fermentation, energy production would stop
27
What does kinase do?
Removes or adds phosphates
28
What do isomerases do?
Changes the arrangements of phosphates
29
What do dehydrogenases do?
Moves H ions to and from NADH and FADH
30
Does fermentation produce a large amount of ATP?
No
31
What kind of fermentation do animals undergo?
Lactic fermentation
32
What kind of fermentation do plants undergo?
Ethanol fermentation
33
What is acted on by 6- bisplosphate to create one of the two products of cellular respiration?
Aldolase
34
What is aldolase called?
A regulator
35
What product is created when energy is needed and enzymes are active?
G3P
36
What product is created when energy is not needed and enzymes are inactive?
DHAP
37
What happens to the citrate in the citric acid cycle and what does this inhibit?
The citrate is high and this inhibits phosphofructokinase
38
What enzyme exerts the most control on glycolysis?
Phosphofructokinase
39
What does cellular respiration begin with?
Glycolysis
40
Where does glycolysis occur?
In the cytosol
41
What does fermentation allow?
Continued glycolysis
42
What happens after glycolysis and what does this produce?
Pyruvate processing which produces acetyl coa
43
What does pyruvate process yield coa for?
Citric acid cycle
44
What happens after the citric acid cycle?
The electron transport chain
45
What do glycolysis, pymvate processing and the citric acid cycle all produce?
NADH
46
What's the ATP produced at the end of cellular respiration used for, what does this drive and what does this enable?
Phosphorylation of enzymes and substrates which drives energetic coupling enabling cellular work
47
What is the difference between oxidative and substrate phosphorylation?
In substrate phosphorylation, phosphate is added to ADP to make ATP using an enzyme but oxidative is when a phosphate is added to ADP to make ATP using a protein called ATP synthase
48
Where does the citric cycle take place?
In the mitochondrion

Biology: Cells And Molecules (22 decks)

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