Mcq On Krebs Cycle
The Krebs cycle is an eight-step process occurring in the mitochondrial matrix. Acetyl CoA, derived from carbohydrates, proteins and fats is completely oxidised to release carbon dioxide. The energy released is stored in the form of ATP.
1. Product of Krebs cycle essential for oxidative phosphorylation is ATP
NADPH and ATP
(b) Acetyl CoA
(c) CO₂ and Oxaloacetate
(d) NADH and FADH2
Which of the following is an example of a programming language?
A) HTML
B) Python
C) Excel
D) All of the above
Answer: (D)
2. A single molecule of glucose generates 2 molecules of acetyl CoA, which enters the Krebs cycle.
(a) 4
(b) 3
(c) 2
(d) 1
Which of the following is the correct answer?
- (a) Option A
- (b) Option B
- (c) Option C
Answer: (c)
3. Malate accepts hydrogen from NAD+
FAD
(b) NAD
(c) NADP
(d) FMN
What is the correct answer?
Answer: (b)
Which intermediate of the Kreb’s cycle is used in the formation of amino acids?
Citric Acid
(b) Malic Acid
(c) Isocitric Acid
𝛼-Ketoglutaric Acid
Which of the following is the correct answer?
a) Option A
b) Option B
c) Option C
d) Option D
Answer: (d) Option D
The Krebs cycle occurs in aerobic respiration due to the presence of oxygen
The Electron Transport Chain requires aerobic conditions in order to operate.
(b) Oxygen is a reactant.
(c) Oxygen has a catalytic function
- (d) All of the above
What is the capital of France?
Answer: (a) The capital of France is Paris.
6. Acetyl CoA is formed from pyruvate by the pyruvate dehydrogenase reaction
Dehydration
(b) Reduction
(c) Oxidative Decarboxylation
(d) Dephosphorylation
Which of the following is not a type of data visualization?
A) Bar Chart
B) Line Graph
C) Database
Answer: (C) Database
Which of the following is not formed during the Krebs cycle?
(a) Lactate
(b) Isocitrate
(c) Succinate
Both (a) and (b)
I bought a new car.
Answer: (a) I purchased a new vehicle.
The Inhibition of Pyruvate Entry into the TCA Cycle by a High Cellular Concentration
(a) Pyruvate
(b) NADH
(c) Coenzyme A
(d) AMP
Which of the following is correct?
- (a) 4 + 5 = 10
- (b) 4 + 5 = 9
Answer: (b)
ATP synthesis is driven by the energy released from the breakdown of food molecules.
Coenzyme Motive Force
(b) cAMP
(c) Proton Gradient
GTP Hydrolysis
Which of the following is the correct answer?
- a) wrong
- b) wrong
- c) correct
Answer: c) correct
Which of the reactions of the Kreb’s cycle reduces FAD?
Isocitrate to Oxaloacetate
(b) Succinyl CoA to Succinate
(c) Malate to fumarate
(d) Succinate → Fumarate
Which of the following is a type of loop?
- (a) if
- (b) else
- (c) try
- (d) for
Answer: (d)
Check out the Krebs Cycle Here!
Recommended Video:
Learn Easy Tricks to Master the Krebs Cycle in NEET Biology and Remember it Forever!
![Krebs Cycle]()
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title: “Mcq On Krebs Cycle”
link: “/mcq-on-krebs-cycle”
draft: false
The Krebs cycle is an eight-step process occurring in the mitochondrial matrix. Acetyl CoA, derived from carbohydrates, proteins and fats, is completely oxidised to release carbon dioxide. The energy released is stored in the form of ATP.
1. Product of Krebs cycle essential for oxidative phosphorylation is ATP
(a) NADPH and ATP
(b) Acetyl CoA
(c) CO₂ and Oxaloacetate
(d) NADH and FADH2
Which of the following is the correct answer?
A) Option 1
B) Option 2
C) Option 3
D) Option 4
Answer: (D) Option 4
2. A single molecule of glucose generates 2 molecules of acetyl CoA, which enters the Krebs cycle.
(a) 4
(b) 3
(c) 2
(d) 1
Which of the following is an example of a web application?
Answer: (c) Online banking
3. Malate accepts hydrogen from NAD+
(a) FAD
(b) NAD
(c) NADP
(d) FMN
What is the answer to question (a)?
Answer: (b)
Which intermediate of the Kreb’s cycle is used for the formation of amino acids?
Citric Acid
(b) Malic Acid
(c) Isocitric Acid
𝛼-Ketoglutaric Acid
Which of the following is correct?
- (a) This is a correct statement
- (b) This is an incorrect statement
- (c) This is not a correct statement
- (d) This is not an incorrect statement
Answer: (d)
The Krebs cycle is a key part of aerobic respiration, which occurs in the presence of oxygen.
The Electron Transport Chain requires aerobic conditions in order to operate.
(b) Oxygen is a reactant.
(c) Oxygen has a catalytic role
- (d) All of the above
What is the capital of France?
Answer: (a) The capital of France is Paris.
6. Acetyl CoA is formed from pyruvate by the Pyruvate Dehydrogenase reaction
Dehydration
(b) Reduction
(c) Oxidative Decarboxylation
(d) Dephosphorylation
Which of the following is a programming language?
- A) HTML
- B) CSS
- C) JavaScript
- D) Microsoft Word
Answer: (C) JavaScript
Which of the following is not formed during the Krebs cycle?
(a) Lactate
(b) Isocitrate
(c) Succinate
Both (a) and (b)
Question: What is the answer to question (a)?
Answer: (a)
The Presence of a High Cellular Concentration Inhibits the Entry of Pyruvate into the TCA Cycle
Pyruvate
(b) NADH
(c) Coenzyme A
(d) AMP
Which of the following is true?
- (a) The Earth is flat
- (b) The Earth is round
Answer: (b)
The synthesis of ATP is driven by the energy released from the breakdown of molecules such as glucose.
Coenzyme Motive Force
(b) cAMP
(c) Proton Gradient
(d) GTP Hydrolysis
Which of the following is the correct way to write a heading?
Answer: (c) # Heading
Which of the reactions of the Kreb’s cycle reduces FAD?
Isocitrate to Oxaloacetate
(b) Succinyl CoA to Succinate
(c) Malate to Fumarate
(d) Succinate → Fumarate
Which of the following is not a type of loop?
- a)
for - b)
while - c)
do-while - d)
switch
Answer: (d) switch
Check out the Krebs Cycle Here!
Recommended Video:
Learn Easy Tricks to Remember the Krebs Cycle in NEET Biology Forever
