Question

Cellular respiration occurs in which cell organelle?

• A. Mitochondria
• B. Chloroplast
• C. Endoplasmic reticulum
• D. Microtubules

Hint:

Mitochondria are called the powerhouse of the cell because they produce ATP through respiration.

Answer 1

The Correct Option is A

Concept:
Cellular respiration is the process by which cells produce energy in the form of ATP by breaking down food molecules.

Step 1: Understand cellular respiration.
In aerobic respiration, glucose is oxidized to release energy. \[ \text{Glucose}+\text{Oxygen}\rightarrow \text{Carbon dioxide}+\text{Water}+\text{ATP} \]

Step 2: Identify the organelle.
Mitochondria are called the powerhouse of the cell because they produce ATP through cellular respiration.

Step 3: Eliminate other options.
Chloroplast is involved in photosynthesis. Endoplasmic reticulum is involved in synthesis and transport of molecules. Microtubules provide structural support and help in cell division. \[ \therefore \text{Correct Answer is (A)} \]