We use cookies to give you the best experience possible. By continuing we’ll assume you’re on board with our cookie policy

Mitosis Lab Essay Sample

  • Pages: 3
  • Word count: 657
  • Rewriting Possibility: 99% (excellent)
  • Category: cell observation

Get Full Essay

Get access to this section to get all help you need with your essay and educational issues.

Get Access

Introduction of TOPIC

In the Mitosis lab an onion root was observed under a microscope to observe whether or not cell division takes place. Also, whether cells replicate in order for it to reproduce. By observing the onion root under the microscope it allows many layers to be looked at through each cell division. The goal of Mitosis is the replication of cells to produce multiple like cells. The steps involved in Mitosis are what is known as the PMAT stages, which are the following: Prophase, Metaphase, Anaphase and Telephase. In the first stage Prophase the cell is starting to curl up into a circular ball. The next step Metaphase is when the cell gets completely curled up into a ball.

The third stage Anaphase the cell starts to divide and in the final stage Telephase the cells separate. In the Mitosis lab an onion root was observed under a microscope. In observing the cell it was important to zoom in 40x to enlarge the root so each stage of the cell could be identified. In the stages of Mitosis the focus will be on cell division of the onion root and how many cells were found on the onion root.. “ If the number of cells is multiplied, then the cells completed Mitosis.

Materials and Methods microscope -slides onion root cover slip knife

In this lab we received one microscope per group. We nee

ded to be sure the microscope was open to the widest setting and the focus was in. The next step was

Sorry, but full essay samples are available only for registered users

Choose a Membership Plan
to cut a piece of onion root and place it on the slide and than to place a cover slip over the top of the slide. Next, we had to take a slide and place it on the microscope stage. We needed to use the adjustments on the microscope to zoom in and out to get a clear view of the onion root and bring the onion root into focus to be able to see the cells. Our focus was on the four stages of Mitosis, being Prophase, Metaphase, Anaphase and Telephase. After our observation we recorded the amount of cells in each stage.

Data and Results
The results when observing the onion root were as follows. The most cells that were counted were in the Prophase stage with 36, than the next was Anaphase at 23, next was Telephase with 20 and lastly Metaphase with 16. By looking at the results of the data the most cell division occurred in the prophase stage of the onion root . The least activity occurred in metaphase.

If the number of cells is multiplied then the cell has completed Mitosis. According to this hypothesis and and results of the data it has proven to be true. The hypothesis was supported by the data because the number of cells duplicated when we observed the onion root. The cell replicated and went through all the phases of mitosis. In this lab a source of error could have been the microscope and the person counting the cells in each of the phases. If the microscope was not on the correct power than the cells would not be identified or counted correctly. Secondly, if human error occurred it could have impacted the number of cells being counted.

Finally, the onion root does undergo mitosis because it goes through all four stages from the start being Prophase, the start of a cell changing to the next stage metaphase which the onion root completely goes through cell division than anaphase which is the middle part of the cells dividing and the final stage telephase where the cell completely replicated. So in conclusion the data supported the hypothesis proving that the onion root had gone through each stages of mitosis and in fact replicated.

We can write a custom essay on

Mitosis Lab Essay Sample ...
According to Your Specific Requirements.

Order an essay

You May Also Find These Documents Helpful

The biology of neural stem cells

Stem cells are originally defined in the haematological system, but recently have been found in a multitude of other sites. These cells all share the same features of self-renewal and multipotentiality and different types and therapeutic strategies have been defined with respect to the nervous system. There are three known accessible sources of autologous adult stem cells in humans: Bone marrow, Adipose tissue (fat cells) and Blood. Stem cells or mother cells have the remarkable potential to develop into many different cell types in the body. Serving as a form of remedy system for the body. When a stem cell divides, each new cell was the prospective to either remain a stem cell or become another type of cell with a more specialized function, such as brain cells. Stem cells differ from other kinds of cells in the body. All stem cells in any case of their source have three general properties: Capable of dividing...

To Determine the Effects of Temperature on...

Research Question: To investigate how different temperatures affect the beetroot pigment and finding out the absorbance and transmittance % using a visible spectrophotometer. Background Information: Beetroots contain betalains which are the red pigments present in the cell vacuole. Betalains are soluble in water and they contain nitrogen. Betalains extracted from beetroot is commonly used as food dye because it is not known to cause any allergic reactions. Cell membrane is the barrier that separates the inner environment of the cell from the outer environment. The membrane is selectively permeable. The cell membrane is made up of mainly lipids, carbohydrates and proteins. The lipids are the phospholipid bilayer which consists of a hydrophilic polar head and a hydrophobic tail. Among the proteins present in the cell membranes are integral proteins and peripheral proteins. {1} Lipids increase in fluidity as temperature increases. Once denatured, proteins start to unravel and are unable to...

Investigating Transport Across Membranes

Introduction The cell membrane is the boundary that separates the internal parts of the cell from surroundings. Substances that move in or out of the cells must pass across the cell membrane. Beetroot (Beta vulgaris) cells contain red pigment called betacyanin. The red pigment is contained in a large vacuole inside the cells. The vacuole is separated from the cytoplasm of the cell by its own membrane. The membrane of the vacuole in a living cell does not normally let the red pigment through it. If the membranes of the cell are damaged, however, the red pigment may leak out of the vacuole and out of the cell. The extent of the damage to the membrane can be measured by the amount of red pigment escaping the cell. Research Question How will changing the percentage of glucose concentration affect the light transmission percentage from the release of betacyanin caused by...

Popular Essays


Emma Taylor


Hi there!
Would you like to get such a paper?
How about getting a customized one?