Question

Match List I with List II:

List I		List II
A	Citric acid cycle	I	Cytoplasm
B	Glycolysis	II	Mitochondrial matrix
C	Electron transport System	III	Intermembrane space of mitochondria
D	Proton gradient	IV	Inner mitochondrial membrane

Choose the correct answer from the options given below:

• A. A-I, B-II, C-III, D-IV
• B. A-II, B-I, C-IV, D-III
• C. A-III, B-IV, C-I, D-II
• D. A-IV, B-III, C-II, D-I

Answer 1

The Correct Option is B

To solve this matching question, it is essential to understand where each biological process occurs within a cell. Here's the breakdown:

1. Citric acid cycle: This cycle, also known as the Krebs cycle, takes place in the mitochondrial matrix. Therefore, A matches with II.
2. Glycolysis: This process occurs in the cytoplasm of a cell. Thus, B matches with I.
3. Electron transport System: The electron transport chain is located in the inner mitochondrial membrane. So, C matches with IV.
4. Proton gradient: This gradient is established in the intermembrane space of mitochondria. Hence, D matches with III.

Based on this information, the correct answer is: A-II, B-I, C-IV, D-III