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Yes, when observing an onion cell under a microscope before and after applying a stain, such as iodine, noticeable changes can occur. Initially, the cell appears as a clear, colorless structure, but after staining, the cell walls and organelles become more defined and visibly colored. The nucleus, in particular, stands out, making it easier to identify the cell's components and overall structure. This contrast enhances the visibility of cellular details that were not apparent in the unstained sample.
What else can I help you with?
Did you observed any change in the image of onion cells before and after starring?
In cooking, the onion would caramelize.
What is the colour change when onion solution is added to acids and bases?
When onion solution, which contains anthocyanins, is added to acids, it typically turns a reddish color due to the lower pH. In contrast, when mixed with bases, the solution changes to a greenish-yellow hue as the pH increases. This color change is a result of the pH-sensitive nature of the anthocyanins present in the onion.
Introduction in an onion and cheek slide in a biology practical?
In an onion slide preparation, thin layers of onion cells are placed on a slide, stained, and observed under a microscope to study cell structure. On the other hand, a cheek slide involves gently scraping cells from the inside of the cheek, staining them, and examining them microscopically. Both slides are commonly used in biology practicals to observe and compare plant (onion) and animal (cheek) cell structure.
Where is an onion cell found?
Typically on an onion.
Why the chloroplasts is not present in the onion cell?
You can't see chloroplasts in an onion skin cell since the onion was underground. When the onion is underground, the sun can't reach the onion so the onion skin cells can't make glucose. The onion does have chloroplasts in its cells at the top of the onion. That's where he sunlight can reach the onion.
Did you observed any change in the image of onion cells before and after starring?
In cooking, the onion would caramelize.
Did you observe any change in the image of the onion cells before and after?
its look like a tissue paper
How did the iodine solution affect the image of the onion cells?
there will be change in the color for iodine into blue,black because of the presence of starch in it.
How did iodine solution affect the image of the onion cells?
there will be change in the color for iodine into blue,black because of the presence of starch in it.
How did the iodine solution affect the image of the onion cells.?
there will be change in the color for iodine into blue,black because of the presence of starch in it.
How did the iodine solution affect the image the onion cells?
there will be change in the color for iodine into blue,black because of the presence of starch in it.
How did the iodine solution affect the image of the of onion cells?
there will be change in the color for iodine into blue,black because of the presence of starch in it.
How did the iodine solution affect the image of onion cells?
there will be change in the color for iodine into blue,black because of the presence of starch in it.
What are the key characteristics observed when examining onion cells under a microscope labeled?
When examining onion cells under a microscope, key characteristics observed include a rectangular shape, a cell wall, a large central vacuole, and a distinct nucleus.
How does an onion change into a spring onion?
Yes, if you leave a normal cooking onion in water in will sprout spring onions.
Is slicing an onion a chemical change or a physical change?
Chopping an onion is considered to be a physical process. Chopping an onion is not a chemical process because it does not change the chemical composition.
How did the iodine solution affects the image of onion cells?
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