Question

The site of cellular respiration in an animal cell is

• A. ribosome
• B. mitochondria
• C. endoplasmic reticulum
• D. lysosome

Answer 1

The correct option is B

mitochondria

The correct option is B.

Explanation of the correct option:

1. Aerobic respiration takes place in mitochondria.
2. Aerobic respiration occurs in three stages: glycolysis, Kreb's cycle, and the electron transport chain.
3. Except for red blood cells, it is a membrane-bound organelle found in all cells.
4. ETC and Kreb's cycle occur in the mitochondrial matrix.

Explanation of the incorrect options:

Option A:

1. Ribosomes are crucial cell organelles made of RNA and protein that transform genetic instructions into amino acid chains.
2. It assembles amino acids to into proteins, which are required for biological functioning.

Option C:

1. The endoplasmic reticulum is a complex network of tubular membranes found solely in the cytoplasm of eukaryotic cells.
2. It is also in charge of the production of vital lipids such as phospholipids and cholesterol.

Option D:

1. Lysosomes are sphere-shaped sacs that contain hydrolytic enzymes that may degrade a wide range of biomolecules.
2. Lysosomes' primary role is waste digestion and elimination.

Final answer: The site of cellular respiration in an animal cell is the mitochondria.