Question

Which of the following is not a cell organelle?

• A. Ribosome
• B. Microsome
• C. Mitochondria
• D. Golgi complex

Answer 1

The correct option is B

Microsome

The correct option is B.

The explanation for the correct option:

1. A subcellular composition, which possesses one or more particular activities to perform in the cell is known as an organelle.
2. Cell organelles are the membrane structures found within the cells of plants and animals.
3. Various cell organelles found within the cells are the nucleus, endoplasmic reticulum, lysosome, etc.
4. Microsomes are the small vesicles, which are produced from the endoplasmic reticulum when the eukaryotic cells are dissociated in the laboratory.
5. They are not present within the healthy cells.
6. Microsomes are not the cell organelles, they are the fragmented pieces of the endoplasmic reticulum.

The explanation for the incorrect options:

Option A:

1. Ribosomes are the cell organelles, which are of the size of minute granules.
2. They are found in both eukaryotic and prokaryotic cells.
3. They perform an essential role in the synthesis of proteins.
4. They are of the type 70S and 80S.

Option C:

1. Mitochondria is a cell organelle, also known as the powerhouse of the cell.
2. It is primarily related to the production of ATP, which is the energy currency of the cell.

Option D:

1. Golgi complex is a cell organelle, which assists in the packaging of proteins into the vesicles before they are discharged.
2. They perform an essential function in the secretory pathway.

Final answer: Microsome is not a cell organelle.