Question

Which of the following describes the structure of a mitochondrion?

a) A mitochondrion has two phospholipid membranes.
b) The fluid-filled inside of the mitochondrion is called matrix.
c) The inner mitochondria membrane has many folds, called cristae.
d) The smooth outer membrane separates the mitochondrion from the cytosol.

Answer 1

The structure of a mitochondrion is characterized by two phospholipid bilayer membranes, a matrix-filled inner space where ATP is produced, and inner membrane folds called cristae which facilitate ATP synthesis. The correct option is a) A mitochondrion has two phospholipid membranes.

Step-by-step explanation:

The structure of a mitochondrion includes several key features:

• A mitochondrion has two phospholipid membranes, an outer and an inner membrane.
• The fluid-filled inside of the mitochondrion is known as the mitochondrial matrix, which is where most of the cell's ATP is produced.
• The inner mitochondria membrane is extensively folded into structures called cristae, which serve to increase the surface area for ATP synthesis.
• The smooth outer membrane functions to separate the mitochondrion from the cytosol.

Each of these components plays an integral role in the organellar function and cellular respiration. The correct option is a) A mitochondrion has two phospholipid membranes.