Which cellular organelle is primarily responsible for producing energy in the form of ATP within the cell?

A Lysosome

B Mitochondrion

C Golgi apparatus

D Endoplasmic reticulum

Solution

Correct Answer: Option B

- The mitochondrion is the cellular organelle responsible for producing ATP, the primary energy currency of the cell.
- It generates ATP through oxidative phosphorylation within the inner mitochondrial membrane.
- This process converts energy from nutrients into a usable form to power cellular activities. Other organelles like lysosomes, Golgi apparatus, and endoplasmic reticulum have different specialized functions unrelated to primary energy production.

Reference: Molecular Biology of the Cell, 6th Edition, Chapter 10/Pages 550-555

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