In part 1E, after adding the NaCl solution to the onion cells, the cells should have reduced in size, but no reaction appeared to take place. This may have occurred in part because the onion itself was already dried out and dehydrated, or while the onion was being looked at through the microscope, the heat from it may have caused the cells to ...
What differences can you observe between animal cells (cheek epithelium) and plant cells (onion epidermis)? Think of the size, shape and cellular components. The onion epidermis cell is the only cell that has a cell wall. In addition, it is the only cell that has a chloroplast, where the photosynthesis can happen.
Nov 01, 2016 · Imagine the onion as a globe, with the stem end at the north pole and the root end at the south. The direction in which you slice your onions can have a huge impact on both flavor and texture. See, onion cells are not symmetrical, and slicing from pole to pole will actually rupture fewer cells than slicing parallel to the equator.
The bulbs vary in size, shape, colour, and pungency, though warmer climates generally produce onions with a milder, sweeter flavour than do other climates. The onion’s characteristic pungency results from the sulfur-rich volatile oil it contains; the release of this oil during peeling or chopping brings tears to the eyes.
Remove old onion scales. Separate plants as needed by slicing between plants and leaving a portion of the roots attached. You may have more than 1 plant develop from a single onion bottom. Replant in a prepared growing bed. Cut leaves down to 1/3 of the size to allow the bulb to develop.
A few giant cells, such as hens' eggs, can be seen with the naked eye. It is at the cell level where many of the basic functions of organisms are carried out: protein synthesis, extraction of energy from nutrients, and so forth. All living cells have similar types of complex molecules that are involved in these basic activities of life.
Skin of an onion bulb: In order to view the cells, a very thin layer of skin must be obtained. Take a single layer of onion and bend it towards the shiny side. After it snaps, pull gently, and a transparent layer of skin, similar to Scotch tape, will appear.