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itanong mo sa akin baka alam ko by reynela and verdana
centrioles
spindle fibers
because it is only found in green parts of plants
provides protection from harm
itanong mo sa akin baka alam ko by reynela and verdana
AnswerIodine was used to stain onion epidermal cells so you could see the cells more clearly and examine them. Naturally, the cell parts are difficult to see because they are clear.You put iodine on onion cells in order to make parts of the cell which were translucent, more visible. This is because iodine stains starch present in the onion cell.
All organisms are made of cells. An onion is and organism, hence all parts of an onion are made of cells.
centrioles
we stain onion and cheek cells for the following reasons: To prevent the cells from drying quickly To preserve them To disinfect them To make the organelles clearly visible By doing so you will get a clear picture on the microscope and dear reader also remember that you should always keep the cove slid carefully to avoid bubbles in the mount. Hope this piece of information has helped you. All the best
The onion cells are much more rectangle shaped, than the cheek cells and the nucleus in the onion cell is much more bigger and better seen in the microscope.
Cell boundaries (distinct black lines between the cells), and the stained cytoplasm are visible at 10 (ocular magnification) by 5 (stage magnification). The cells are very small at this point. At 10 by 10 cells are bigger and the vacuoles can be seen clearly as separate parts. Any other organelles cannot be seen by a low power microscope. As far as I remember nuclei cannot be seen in the case on onion epidermis. However, i am not too sure.
spindle fibers
because it is only found in green parts of plants
nucleus, cytoplasm and cell membrane, and cell wall
provides protection from harm
I'm not that sure but I think it's light