Question

In light microscope, the most clear structure of a mature cell is

• A. Chloroplast
• B. Peroxisome
• C. Cell wall
• D. None of the above

Answer 1

The correct option is D None of the above

The nucleus is visible under a microscope as a large, round, dark-staining body that contains the genetic material. In many cells, the nucleus appears to be suspended in a small sea of cytoplasm, a pale-staining matrix that often contains small, blurry objects visible only when stained. The cytoplasm is surrounded by an outer limiting membrane called the cell membrane (also plasmalemma or plasma membrane). Unfortunately, the cell membrane, which measures only 80% wide, is much too small to be seen with the light microscope (whose limit of resolution is 2000%). Cell organelles are also not visible under light microscope.

So, the correct answer is option D.