Question

Identify the following parts of a Mitochondria labelled as numerals.

• A. (i) Outer membrane (ii) Inner membrane (iii) Matrix (iv) Cristae (v) DNA
• B. (i) Inner membrane (ii) Outer membrane (iii) DNA (iv) Matrix (v) Cristae
• C. (i) Matrix (ii) Cristae (iii) Outer membrane (iv) Inner membrane (v) DNA
• D. (i) Cristae (ii) DNA (iii) Inner membrane (iv) Matrix (v) Outer membrane

Answer 1

The correct option is A

(i) Outer membrane (ii) Inner membrane (iii) Matrix (iv) Cristae (v) DNA

The correct identification of the parts are:

i. Outer membrane: Outermost phospholipid layer for protection.
ii. Inner membrane: Made of five different proteins.
iii. Matrix: Fluid with a large number of Oxidative enzymes.
iv. Cristae: Finger-like projections containing particles with ATP synthase enzyme.
v.DNA -The mitochondria has a DNA of its own

So it is; A. -- i.- Outer membrane., ii. - Inner membrane,.iii. - Matrix,.iv. - Cristae.,v. - DNA
The outer membrane covers the organelle and contains it like a skin. The inner membrane folds over many times and creates layered structures called cristae. The fluid contained in the mitochondria is called the matrix. The folding of the inner membrane increases the surface area inside the organelle. The mitochondria has a DNA of its own