Question

Under low power of the microscope

(i) What can you see? (Long rows of rectangular cells in unstained onion peeled)

(ii) Which structures of the cells can you see? Do you see the cell wall, the nucleus and a large vacuole contained in the cytoplasm?

Answer 1

When you observe cell under a compound microscope's low power objective, you can only see the generalised structure of the cell i.e. cell membrane, cytoplasm and nucleus...

Answer 2

We can see cell wall and nucleus.  We can't see large vacuole contained in the cytoplasm under low  power of the microscope.

Explanation:

i) Some rectangular structure or brick-like structure of Onion peel are found under a microscope,these are onion cells. And within cells some dots are visible, these are cell nuclei.  

Under low magnification (40X) of the onion peel, approximately 100 of onion cells are visible.  

After increasing the magnification, less number of cells are visible, but the cells are more clear and larger than before.  

There is no space between two onion cell, they positioned beside each other and formed a net-like pattern.  

ii) We can see cell wall and nucleus.  We can't see large vacuole contained in the cytoplasm under low  power of the microscope.