Mitosis in an onion root introduction: mitosis can be observed in cells that are in a state of growth in this lab, you will observe cells and identify which stage of cell division the cells are in. Transcript of bio 30 cell lab report bio 30 onion root tip cells lab report by: kayla arisman, samantha neiser, heidi wicker purpose hypothesis: variables: observations: analysis: procedure: conclusion the purpose was to identify and investigate the different stages of a cell cycle. Analysis 1 why is the onion root a good specimen for studying mitosis cells of the onion are growing so it is easy to find cells in various stages of mitosis. Lab report museum monday, 15 september 2008 so the daughter cell appears shortly after the ends of mitosis in the onion root tips cells, it has the. To study the process of mitosis, i examined cells from the meristem root tissue of an onion, in which many cells are undergoing the process of mitosis mitosis is the process of nuclear division and cytokinesis to form two identical daughter cells.
Get one microscope for your lab group and carry it to your lab desk with two hands make analysis & conclusions: the onion plant began as a single cell. Overall, i have learned that onion root tip cells and whitefish embryo cells are constantly reproducing and creating new cells, how to calculate the percentage of cells in a stage of mitosis, and, finally, that the chromosomes are visible using only a light microscope. Formation of the cell plate, the new cell wall forming between the two cells the objectives of this lab exercise are for you to: • better understand the process and stages of mitosis.
Lab: onion root mitosis purpose: to gain a better understanding of what the phases of the cell cycle look like in a typical plant cell and to determine the amount of time spent in different phases of the. A cell in each stage of mitosis should be identified and sketched exercise 3a2: time for cell replication in this section of the lab, use the high-power objective to observe and count every cell in the field of view. The cell cycle results in the formation of two genetically identical daughter cells from the division of a parent cell in this lab you will be observing plant cells (onion) in the various stages of mitosis, and make time calculations based on the data you collect.
In this lab, you will determine the approximate time it takes for a cell to pass through each of the four stages of mitosis you may use your textbook and class notes to help you identify the stages of mitosis as seen under the microscope. Cell mitosis- onion root tip interphase, metaphase, & other stages 1000x at center is a cell in metaphase with condensed chromosomes aligned on cell equator, at right are two newly divided cells following telophase, many cells are visible in interphase showing diffuse chromatin. The purpose of our lab today was to examine the stages of mitosis the cell goes through many phases in the cell cycle the stages are interphase and m phase interphase is made up of gap 1 phase (g1), synthesis (s), and the gap 2 phase (g2) we will be focusing on the m phase in today's blog the.
Ap lab #3 - mitosis and meiosis section i: during this lab, we were to observe and recognize mitosis in onion root tip and whitefish cells, estimating the time of mitotic stages, stimulate the stages of meiosis by using chromosome sets, and calculate the distance of genes from the centromere. In this lab experiment, hannah was to analyze an onion root tip under a microscope to observe the mitotic stages that occur in the cells of onion root tips the problem was, at what rate does mitosis occur in different parts of the onion. In this lab, you will determine the relative length of time each phase of mitosis takes in the meristem of an onion root tip on a prepared slide this will be determined by observing the onion root tip under the microscope and counting the number of cells in each phase.
Although slicing the onion root captures many cells in different phases of the cell cycle, keep in mind that the cell cycle is a continuous process scientists have divided the process into 5 phases, each characterized by important events, but these divisions are still arbitrary. Ap biology- mitosis and meiosis cell division lab part 1-mitosis summary: in this experiment first the stages of an onion cell undergoing mitosis are going to be observed and every stage is going to be detected and drawn on paper. The purpose of this lab is to learn how to prepare a wet mound, to learn proper staining techniques and to examine human cheek cells and onion skin cells it is predicted that all cells, no matter if it be plant or animal, will be in beside each other in large groups, that most of the major.
301 the cell cycle and mitosis 301 cell cycle lab report by: muhammed hafez cell cycle restricted to the tip of the onion root the cells that were dividing. Onion tip is good for mitosis research because the tip of a root is a perfect place for cell reproduction, because the root will grow from that area that means there will be a higher chance of finding cells in different stages of mitosis. Disruption of mitosis in onion lab report 1 disruption of mitosis in onion root cells by colchicine treatment samirah mariam boksmati california university of pennsylvania. The objective of this experiment was to calculate the percentage of cells in each of the phases of mitosisthere were two different slides, one of onion root tip and one of whitefish blastula the slides were each placed under a microscope and observed.