Question Details

Match List I with List II :

List I

List II

AAxonemeICentriole
BCartwheel patternIICilia and flagella
CCristaIIIChromosome
DSatelliteIVMitochondria

Choose the correct answer from the options given below:

Options

A

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

B

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

C

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

D

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

Show Answer

Correct Answer :

Option D

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

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

Solution :

The correct answer is A-II, B-I, C-IV, D-III.

Let us analyze and match each item in List I with its corresponding structure/function in List II step-by-step:

1. A. Axoneme matches with II. Cilia and flagella:
The core of cilia and flagella is called the axoneme. It consists of a specific arrangement of microtubules, typically showing a 9 + 2 pattern (nine pairs of peripheral doublets and one pair of centrally located microtubules) enclosed by a plasma membrane.

2. B. Cartwheel pattern matches with I. Centriole:
The proximal region of a centriole is made of proteinaceous material and is called the hub. This hub is connected to peripheral triplets of microtubules by radial spokes, resembling the spokes of a wheel. This structure is famously referred to as the cartwheel pattern (showing a 9 + 0 microtubule arrangement).

3. C. Crista matches with IV. Mitochondria:
The inner membrane of a mitochondrion features multiple finger-like or plate-like infoldings called cristae (singular: crista). These folds project into the matrix and serve to significantly increase the surface area available for cellular respiration and ATP-generating chemical reactions.

4. D. Satellite matches with III. Chromosome:
Certain chromosomes possess non-staining secondary constrictions at a constant location. The chromosome segment distal to this secondary constriction behaves as a small knob-like fragment called a satellite.

Combining all these correct associations, we get:
AII, BI, CIV, and DIII.

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