Question

What two structures would provide a positive identification of a plant cell under a microscope? a)cell wall, mitochondria b)plasma membrane, large central vacuole c)ribosomes, chloroplasts d)cell wall, chloroplast

Answer 1

Answer:

The correct answer is option D which is cell wall, chloroplast.

Explanation:

• Here positive identification means such features in plant cell which are significantly distinguishes plant cell from animals cells.
• Cell wall is outer envelope type structure present around the cell membrane. It is not present in animal cells.
• Chloroplasts are plasmids. These organelles are distinguished structure of photosynthesizing cells.
• Hence only plant cells have chloroplast while chloroplast are absent i animal cells.
• So from looking at chloroplast and cell wall we can identify a plant cell.

Answer 2

Cell wall, Large central vacuole, Chloroplasts