Skip to content
Menu
All Notes
Ask
Practice
Course
MCQ
Flashcard
Audio
eBooks
Start studying
AP Biology Notes
AS Level Biology Notes
A Level Biology Notes
O Level Biology Notes
IB Biology Notes
AQA GCSE Biology
IGCSE Biology Notes
Video
Ask AI
Login
MCQ Categories
AP Biology MCQ
Biological Macromolecules
Elements of Life
Biochemistry MCQ
Cell Biology MCQ
Genetics MCQ
MCQ on Epistasis
Microbiology MCQ
Most Probable Number (MPN) Test
Neuroscience MCQ
31
What is produced from pyruvate under anaerobic conditions?
A:
Acetyl-CoA
B:
Lactate
C:
Ethanol
D:
NADH
32
Which enzyme catalyzes the first step of glycolysis?
A:
Phosphofructokinase
B:
Pyruvate kinase
C:
Hexokinase
D:
Aldolase
33
What is the net gain of ATP molecules from one molecule of glucose during glycolysis?
A:
1 ATP
B:
2 ATP
C:
4 ATP
D:
6 ATP
34
Where does glycolysis occur in the cell?
A:
Mitochondria
B:
Cytoplasm
C:
Nucleus
D:
Endoplasmic reticulum
35
What is the primary function of glycolysis?
A:
To generate oxygen
B:
To produce ATP
C:
To synthesize proteins
D:
To break down fatty acids
36
In fermentation _____ is reduced and _____ is oxidized.
A:
Pyruvate ... NADH
B:
Lactate ... NADH
C:
NADH ... Lactate
D:
NAD⁺ ... Pyruvate
37
In muscle cells, fermentation produces _____
A:
CO₂, ethanol, NADH, ATP
B:
Pyruvate
C:
Lactate and NAD⁺
D:
CO₂, ethanol, and NAD⁺
38
Most CO₂ from catabolism is released during
A:
Citric acid cycle
B:
Oxidative phosphorylation
C:
Glycolysis
D:
Electron transport
39
When electrons flow along the electron transport chains of mitochondria, which of the following changes occurs?
A:
NAD⁺ is oxidized
B:
ATP synthase pumps protons
C:
Cytochromes phosphorylate ADP
D:
pH of the matrix increases
40
What is the oxidizing agent in the reaction: Pyruvate + NADH + H⁺ → Lactate + NAD⁺
A:
Oxygen
B:
Pyruvate
C:
NADH
D:
Lactate
« Previous
1
2
3
4
5
6
…
43
Next »
Create Quiz
Quiz Leaderboard
1st
Sourav
Score: 90%
Questions: 20
2nd
Priyanka
Score: 90%
Questions: 10
3rd
Nischal
Score: 90%
Questions: 10
4th
Vesnce
Score: 45%
Questions: 20
5th
Hector
Score: 40%
Questions: 10
6th
Hykss
Score: 20%
Questions: 10
How leaderboard works
Click "Create Mock Test" to start a quiz.
Select categories and the number of questions, then click "Submit" to begin.
After completing the quiz, enter your name and email, then click "Submit" to view your score.
Your score is shown as a percentage (e.g., 5 correct out of 10 is 50%).
The leaderboard displays your name, score percentage, and total questions answered.
Click here to Create Mock Test
⚠️
Click on your ad blocker icon in your browser's toolbar
Select "Pause" or "Disable" for this website
Refresh the page if it doesn't automatically reload
Continue to Site
Search for:
