Does an onion cell have more than one nucleus?
No,it only has one nucleus, but it does have a large vacuole
There is more than one kind of nucleus; the most usual types are cell nuclei and atomic nuclei, and even then, not all cell nuclei and not all atomic nuclei are the same size either. I have previously commented on the fact that a uranium nucleus is enormously larger than a hydrogen nucleus. So, please be more specific.
If you're talking about a normal eukaryotic cell, then no, it is not possible. But if the cell is undergoing cell division, the original nucleus will formed into two nuclei in the cell at one moment of time but that is because the cell is going to split into 2 daughter cells and each daughter cell needs a nucleus.
The nucleus is the main organelle in a cell. It controls all activities happening in the cell and also contains chromosomes, which helps in the reproduction of the cell. But eventually, there are some cells, in particular, the red blood cell, don't have a nucleus to contain more haemoglobin. Hence they live a shorter lives than a typical cell
Nucleus of An Atom The nucleus of an atom is a dense region consisting of protons and neutrons. The nucleus is found in the center of an atom. More than 99% of the atom's mass is found in the nucleus. Nucleus of a Cell A cell's nucleus contains much of the genetic material. Most people think of the nucleus as the "brain" of a cell. Inside the nucleus is the nucleolus, which produces ribosomes.
A cell is hypertonic when it has a greater concentration than its environment, but, when a solution is hypertonic, it has a greater concentration than the cell it is being compared to. For example, a 5% salt solution is hypertonic to an onion cell while the onion cell is hypotonic to the solution. The salt concentration of an onion cell must be less than 5% - actually its somewhere between 1.6 and 1.3 percent. This…
Yes, a syncytia is a cell with more than one nucleus. They are found in humans in the case of sicknesses like RSV, HIV, etc. Mitosis is NOT two nuclei - the nuclear envelope disappears during mitosis so the DNA is no longer in a nucleus. Some cells in the human body normally have more than one nucleus but this is rare: liver cells, urinary system cells, parietal cells (of the stomach), chondrocytes, and heart…
Which of the following is not a basic component of a cell membrane. Microvilli Plasma Membrane Nucleus Cytoplasm?
This depends on the nature of the NaCl solution... If it is a Hyper-tonic solution (More concentrated solution than onion cells), water will move by osmosis down it's concentration gradient, from a region of less negative water potential (high Ψ) in the onion cell, to a region of more negative water potential (low Ψ) in the solution through a selectively/partially permeable membrane; so the onion cell will be plasmolysed and will look "flaccid" (vacuole gets…
Both Onion and Elodea cells are about the same size. The Onion Cell is smaller in height and longer than Elodea cells, Elodea Cells are taller in height, thick and shorter in length. It is VERY hard to determine, but if I had to choose one, I would choose the Onion Cell because even though it is long, it is fairly small.