NEETBiologyCell the Unit of LifeMCQ+4 / −1
The figure below shows the structure of a
mitochondrion with its four parts labelled (A),
(B), (C). and (D) Select the part correctly
matched with its function. –
- APart (B) : Inner membrane – forms infoldings called cristae
- BPart (C) : Cristae – possess single circular DNA molecule and ribosome
- CPart (A) : Matrix – major site for respiratory chain enzymes
- DPart (D) : Outer membrane – gives rise to inner membrane by splitting
View written solutionFree
Correct answer: A
Each mitochondrion is a double membranebound structure with the outer membrane and the
inner membrane dividing its lumen distinctly into two
aqueous compartments, i.e., the outer compartment
and the inner compartment. The inner compartment
is called the matrix.
The outer membrane forms the
continuous limiting boundary of the organelle. The
inner membrane forms a number of infoldings called
the cristae towards the matrix. The cristae increase
the surface area. The two membranes have their own
specific enzymes associated with the mitochondrial
function.
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