Class NEET 2026 ALL Q #1998
KNOWLEDGE BASED
UNDERSTAND
4 Marks 2026 NTA-RE-NEET-2026 MCQ SINGLE
Mitochondrial inner membrane encloses
(A) aqueous humor
(B) matrix
(C) cytosol
(D) mucus
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Correct Answer: B

AI Tutor Explanation

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Detailed Solution

Step 1: Analyze the structure of Mitochondria

The mitochondrion is a double-membrane-bound organelle. It consists of an outer membrane and an inner membrane. The inner membrane is folded into structures called cristae.

Step 2: Identify the enclosed space

The space enclosed by the inner mitochondrial membrane is known as the mitochondrial matrix. This matrix contains enzymes for the Krebs cycle, mitochondrial DNA, and ribosomes.

Step 3: Evaluate the options

Option (A) refers to the fluid in the eye, (C) refers to the fluid component of the cytoplasm, and (D) is a secretion. Therefore, only (B) is biologically correct.

Final Answer: matrix

AI Suggestion: Option B

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Pedagogical Audit
Bloom's Analysis: This is an UNDERSTAND question because it requires the student to recall and comprehend the structural organization of a cell organelle as described in the NCERT biology curriculum.
Knowledge Dimension: FACTUAL
Justification: The question tests basic terminology and anatomical knowledge of cell biology which is foundational for NEET aspirants.
Syllabus Audit: In the context of NEET, this is classified as KNOWLEDGE. This question aligns with the Cell: The Unit of Life chapter, focusing on direct recall of structural components.

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