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What cell parts are visible in onion root cells?
Those that you can see under the microscope are the cell wall, nucleus, nucleolus, and cytoplasm.
Predict the function of the onion cells that you observed under the microscope. What prominent cell structures would justify your prediction?
Based on the observation of onion cells under the microscope, the function of these cells is likely related to storage and support. The prominent cell structures that justify this prediction include the large central vacuole for storage of nutrients and waste, as well as the cell wall for structural support and protection. Additionally, the presence of numerous plastids containing chlorophyll suggests these cells may also be involved in photosynthesis.
What cell structures can be seen in a stain onion cell?
The structure that is seen is the cell wall. This keeps the shape of the cell and is only found in plant cells. The organelles that can be see in a stained onion cells all depends on your microscope. Under a x400 light microscope we could see the cell wall, cell membrane, nucleus and cytoplasm,
Why do onion cells do not have chloroplast?
Onion cells do not have chloroplasts because the onion is underground where there is no light. Without light chloroplasts have no purpose, so onion cells just don't have them.
Are the nuclei invisible in the onion epidermal cells?
It can seen vaguely and invisible under the microscope
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.
What is the structure and function of an onion cell labeled under a microscope?
The structure of an onion cell labeled under a microscope consists of a cell wall, cell membrane, cytoplasm, nucleus, and vacuole. The function of an onion cell is to store nutrients, provide structure and support, and facilitate cellular processes such as growth and reproduction.
Why can we just see vacuole nucleus cell membrane and cell wall in onion cell under light microscope and not other organelles?
This is because the vacuole, nucleus, cell membrane, and cell wall are large enough to be seen under a light microscope due to their size and contrast with the surrounding cytoplasm. Other organelles, such as mitochondria and chloroplasts, are smaller and have similar refractive index to the cytoplasm, making them harder to distinguish under a light microscope.
Can any one see the cell wall of onion through the microscope?
Yes.
How will describe onion cell under the compound light microscope?
Under a compound light microscope, an onion cell will appear as a rectangular shape with a distinct cell wall and nucleus. The cell cytoplasm will be visible, with small structures such as vacuoles dispersed throughout. The onion cell may also have a clear membrane visible around the cell wall.
What are the key characteristics of an onion cell as observed under a microscope?
The key characteristics of an onion cell observed under a microscope include a rectangular shape, a cell wall that appears as a thin, clear outline, a large central vacuole that takes up most of the cell's space, and small, dark-stained organelles called nuclei.
What plant organelle is missing from the onion cell?
The onion cell is missing chloroplasts, the organelles responsible for photosynthesis in green plants. Onion cells do not contain chlorophyll, so they do not require chloroplasts for photosynthetic processes.
When onion cells are observed with a compound light microscope which laboratory technique is used to make nucleus more visible?
Staining with a dye such as methylene blue or eosin can be used to make the nucleus more visible in onion cells when observed under a compound light microscope. The dye selectively binds to different cellular components, allowing for better contrast and visibility of the nucleus.
Why can you see the parts of a onion under a microsope?
You can see the parts of an onion under a microscope because onion cells are relatively large and have distinct cell structures, such as the cell wall, nucleus, and cytoplasm. The onion's transparent cell walls allow light to pass through, making it easier to observe the details. Additionally, when stained, the cells become more visible, highlighting various components under the microscope. This combination of size, transparency, and staining makes onion cells ideal for microscopic examination.
What Onion epidermis is a suitable tissue to use for observing cellular structures with a compound light microscope because this tissue is thin enough to?
Onion epidermis is a suitable tissue for observing cellular structures with a compound light microscope because it is transparent, allowing light to pass through easily, and the cells are thin enough to view individual cells and structures such as cell walls, nuclei, and chloroplasts. Additionally, the large size of onion cells compared to other plant cells makes it easier to study their internal structures.
The stain commonly used when preparing onion skin for viewing through a microscope is called?
Iodine solution
When a onion cell is stained with iodine which organelles are you not able to see under a compound light microscope?
Under a compound light microscope, you would not be able to see specific organelles like the lysosomes, peroxisomes, endoplasmic reticulum, and Golgi apparatus in an onion cell stained with iodine. These organelles are typically smaller and/or transparent, making them difficult to visualize with this type of microscope.
