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Why you need to heat onion root tips during mitosis?
Heating onion root tips during mitosis allows for the cells to be fixed and stained, making it easier to observe and study the different stages of cell division under a microscope. The heat helps to stop any ongoing cellular processes that may impact the accuracy of the observations.
What part of an onion root tip has the greatest rate of cell division?
The meristem, located at the tip of the root, has the greatest rate of cell division in an onion root tip. This region is responsible for the growth and elongation of the root, leading to the production of new cells through mitosis.
If the chromosome number of a typical onion root tip cell is sixteen before mitosis what is the chromosome number of the each newly formed nucleus after nuclear division has taken place?
the same as before, each will have sixteen. If it was meyoses it would be 1/2 that (8) Mitotic division creates exact replicates of the original, so the answer is 16. Meosis occurs in the flower of the onion, it's sex cells ovules and pollen will have only 8 chromosomes
What can be observed under the microscope when examining an onion root tip slide?
When examining an onion root tip slide under a microscope, you can observe the different stages of cell division, such as interphase, prophase, metaphase, anaphase, and telophase. This allows you to study the process of mitosis and observe the structure and arrangement of the cells in the root tip.
What plant tissues provide the greatest opportunity to observe cells under mitosis?
The meristematic tissues, specifically the root tip and shoot apical meristem, provide the greatest opportunity to observe cells undergoing mitosis. These regions are actively dividing and are commonly used in studying cell division processes.
Which tool is best for a student to use to observe mitosis in an onion root?
A microscope is the best tool for a student to use to observe mitosis in an onion root tip.
Why are onion root tips used to look at mitosis instead of other parts of the onion?
because of you!
Where else in an onion plant does mitosis occur?
in the shell
Bella did the onion root mitosis lab before on what?
with edward
What class is a onion?
Vegetable class
What vegetable were edward and Bella looking at when they met?
When they met in Biology class (for the second time) they were looking at 'onion root tip cells' and labelling them into the phases of 'mitosis'. Found on page 38.
Why would you look at the cells in the roots of the onion when looking for cells in mitosis?
anaphase
What type of cell division is exhibited by the cell in the onion root tip?
Mitosis.
How does mitosis differ between the onion root and the roundworm?
The only difference between vegetal (onion) cells and animal (roundworm) is not quite in mitosis, but in citokinese (not a mitosis phase since mitosis refers to nucleus division). Vegetal cells have a thick wall rounding the cell which needs different means to split than the membrane in animal cells
What two factors would cause mitosis to occur in an onion plant?
Water and light
Why we use hcl in mitosis experiment in onion root tip?
Hydrochloric acid (HCl) is used in the mitosis experiment on onion root tips to hydrolyze the pectin in the cell walls, making it easier to separate the cells for analysis. By softening the cell walls, HCl helps release the individual cells, allowing for better visualization of the chromosomes during different stages of mitosis. This process is crucial for accurately counting and identifying cells in various stages of the cell cycle, providing valuable data for studying cell division and growth.
What slide organism in mitosis in plant cell?
The slide organism commonly used to study mitosis in plant cells is the onion root tip. Onion root tips have actively dividing cells that are easily observable under a microscope, making them ideal for studying the different stages of mitosis such as prophase, metaphase, anaphase, and telophase.
