Question

Under a microscope, Paheli observes a cell that has a cell wall but no distinct nucleus. The cell wall that she observes is a:

• A. Plant cell
• B. Animal cell
• C. Nerve cell
• D. Bacterial cell

Answer 1

The correct option is D

Bacterial cell

The correct answer is option D:

Explanation of the correct option:

1. Bacteria are prokaryotic organisms with only one cell devoid of a nuclear membrane.
2. The internal structure of bacterial cells is simple, the organelles are not bound by a membrane and the genetic material lies in the cytoplasm.
3. It has a cell wall but no nucleus.

Explanation of the incorrect options:

Option A:

A plant cell has a cell wall and a well-defined nucleus.

Option B:

It has no cell wall.

Option C:

1. A nerve cell is a long, branched animal cell that serves as a transmitter between the brain and other areas of the body.
2. It is a eukaryotic animal cell, thus lacking a cell wall and with a defined nucleus.

Final answer:

The cell wall that Paheli observes is a bacterial cell.