Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Biology SBI4U1 > 3 Kahoot - exam > Flashcards

3 Kahoot - exam Flashcards

1
Q

What is a redox reaction?

A

oxidation and reduction electron swapping that happens simultaneously

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

when a substance is reduced

A

often a result of a hydrogen atom being gained

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

When a substance is oxidized, it…

A

loses e’

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

What is metabolism?

A

the sum of all chemical processes that occur within cells

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

Metabolic pathways are …..

A

a series of reactions that lead to a needed product

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

Metabolic pathways are controlled by…

A

enzymes

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

an exergonic reaction releases energy.

A

true

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

a metabolic pathway that breaks down organic materials is

A

catabolic

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

the final product in anabolic pathway has more energy than the reactants

A

true

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

what’s activation energy

A

amount of energy required for a reaction to occur

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

An enzyme speeds up a chemical reaction by _________ the activation energy?

A

decreasing

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

an example of an anabolic process would be

A

forming ATP

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

Reduced molecules have more energy than oxidized molecules.

A

true

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

When a reaction involves the gaining and losing of electrons, we call it a

A

redox reaction

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

What is a coupled reaction?

A

exergonic reaction providing energy for endergonic reaction

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

Where is the majority of ATP made in aerobic respiration?

A

ETC

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

What are two electron carriers in cellular respiration?

A

FADH2 and NADH

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

Where does glycolysis occur?

A

cytoplasm

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

In what stage is acetyl CoA created?

A

pyruvate oxidation

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

Where does the Krebs cycle occur?

A

mitochondrial matrix

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Where does the electron transport chain occur?

A

inner mitochondrial membrane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

REACTIONS In which a gas generated during respiration?

A

Both Aerobic Respiration & Alcohol Fermentation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What is the final acceptor of electrons in the ETC?

A

O2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

What is made when the final electron acceptor, electrons, and hydrogen ions all meet up?

A

H2O

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Only glucose be used in cellular respiration in order to make ATP.
false
26
How many net ATP are formed during glycolysis, and how many total are made, respectively?
2; 4
27
The T in ATP means that there are ____ phosphates on the molecule
3
28
At the end of glycolysis, the 6-carbon sugar is split into 2 molecules, each being
pyruvate
29
The total MAX theoretical yield of ATP from aerobic respiration is
38
30
In an aerobic environment, the pyruvate will next undergo
pyruvate oxidation
31
Where does the electron transport chain exist in prokaryotes?
cell membrane
32
When electrons are passed down the compounds of the ETC they
use their energy to pump H+ across the membrane
33
Which below is an electron carrier in the ETC?
coenzyme q
34
proton pumps in the ETC?
complex I, III, IV
35
How many ATP are made in the link reaction from one pyruvate?
0
36
How many ATP are made from one glucose in Kreb's cycle?
2
37
general steps of oxidative phosphorylation in order
1. e' travel down ETC to O2 2. H+ moves into the intermembrane space 3. H+ flows along its concentration gradient 4. generation of ATP
38
What is the purpose of oxygen in the mitochondria?
to accept electrons from the ETC
39
a reactant in cellular respiration?
glucose
40
Where does NADH from glycolysis go?
To the matrix via shuttle proteins
41
How many ATP are created in glycolysis?
4
42
What is the net # of ATP produced in glycolysis
2
43
Why are 2 ATP needed to start glycolysis?
activation energy
44
How does oxygen enter the MITOCHONDRIA
diffusion
45
NADH from glycolysis enter the mitochondria how?
glycerol-phosphate shuttle
46
what is an isomerization reaction?
rearrangement of the shape of a molecule
47
NADH from glycolysis creates less ATP than NADH from Kreb's
It depends if the cell is prokaryotic or eukaryotic
48
Where does FADH2 enter the ETC?
succinate dehydrogenase
49
Where does NADH enter the ETC?
NADH dehydrogenase
50
Approximately how many ATP does one molecule of NADH produce during oxidative phosphoylation?
3
51
How many NADH are made from one glucose during pyruvate oxidation?
2
52
What high energy electron carrier is made during glycolysis?
NADH
53
How many NADH are produced during the Krebs cycle from one molecule of glucose?
6
54
How many FADH2 are produced during the Krebs cycle from one molecule of glucose?
2
55
Approximately how many ATP does one molecule of FADH2produce during oxidative phosphoylation?
2
56
What cells of the human body carry out lactic acid fermentation?
muscle
57
At what stage(s) of aerobic respiration do decarboxylation reactions occur?
- glycolysis - Krebs cycle - link reaction
58
What is produced in a decarboxylation reaction?
CO2
59
What stages of aerobic cellular respiration are stopped if oxygen isn't present in a cell?
- ETC - pyruvate oxidation
60
This cellular process yields the most ATP in cellular respiration.
oxidative phosphorylation
61
The goal of cellular respiration is to trap the chemical energy in ATP.
true
62
reasons that actual ATP yield of cellular respiration is lower than the theoretical yield?
- energy is require for pyruvate to enter the mitochondria - it costs energy to move ATP out of mitochondria - H+ can leak out of the intermembrane space not passing through ATP synthase
63
Where do fatty acids enter aerobic respiration?
krebs
64
What must be done to an amino acid before it can enter cellular respiration?
amine group must be removed
65
Where do amino acids enter aerobic respiration?
- krebs - pyruvate oxidation
66
What is a feedback mechanism?
A cycle in which one step controls a previous step
67
Enzymes in glycolysis are regulated by...
- ATP levels - ADP levels - citrate levels
68
How would high amounts of ADP affect enzymes in glycolysis?
increase activity
69
How would high amounts of CITRATE affect the enzymes of glycolysis?
decrease activity
70
How would high amounts of NADH affect the Link Reaction?
decrease activity
71
what is anaerobic respiration
Cellular respiration without oxygen
72
Where does the ETC occur in prokaryotes?
cell membrane
73
what molecule do E.Coli use as electron acceptors
- oxygen - nitrate
74
Methanogens can make the full amount of ATP anaerobically. What is used as the final electron acceptor?
carbon dioxide
75
Can prokaryotic organisms undergo the first stage of glycolysis?
yes, it occurs in the cytoplasm
76
What are the two types of fermentation?
alcohol and lactate
77
what type of fermentation do animals undergo
lactate
78
why does fermentation occur
To replenish NAD+ from NADH so that glyoclysis can occur again
79
What are the products of Lactate Fermentation?
2 Lactate ; 2 NAD+ ; 2 ATP
80
What is lactate threshold?
the point at which lactate starts to accumulate in the blood
81
What is oxygen debt?
the amount of oxygen needed to breakdown built up lactic acid
82
What is likely the cause of sore muscles 1-2 days after vigorous exercise?
inflammation
83
Slow oxidative fibers
Are dark red and use aerobic respiration
84
Fast glycolytic fibers
Produce a strong contraction, that fatigue quickly and are white in colour
85
What is the chemical reaction for alcohol fermentation?
2 Pyruvates + 2 NADH --> 2 NAD+ + 2CO2 + 2 Ethanol
86
In alcohol fermentation, what intermediate molecule is made by the decarboxylation of pyruvate ?
acetaldehyde
87
Yeast fermentation occurs in an ________________ environment.
anaerobic
88
What gas does yeast create during fermentation?
CO2
89
At what concetration does alcohol become toxic to yeast?
12%

Biology SBI4U1 (42 decks)

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