Mitosis Cell Lab Essay, Research Paper

I

Mitosis Cell Lab

II. Introduction

Life exists about every where on this planet and if we are to try to grok what life is in all of its impressiveness we must look at its simplest signifiers. Even a cell, the smallest signifier of life known is highly complex. All life begins as a individual cell. I can non get down to understand the deepness of what it takes for one cell to multiply and alter until we become witting of ourselves. There are two types of cell division, Meiosis and Mitosis. Meiosis is where a cell splits and becomes four different cells. Mitosis is the procedure that allows a cell to divide into two indistinguishable cells. This happens by holding all of the DNA replicate before the cell splits so each has all of the original DNA.

My lab shows mitosis in cell reproduction, because I do non hold a microscope powerful plenty to see the existent procedure within the karyon I can non detect the chromosomes really duplicate and separate. It is powerful plenty to let me to see cells dividing and I can detect the population growing without the assistance of tools or instruments. First I began by get downing the yeast civilization in a bowl. I so removed a sample to detect it utilizing a microscope. All throughout I measured the thickness of the yeast population. These observations combined show that through mitosis cells reproduce.

III. Problem

The challenge that faces me is how can I show mitosis or cell reproduction. The ground I have to make this is so that I can really detect the procedure as it occurs and non merely read or make work sheets about it. Unlike our former labs now we are non in absolute control of the lab. Density is a changeless and belongingss of visible radiation are facts that can be stated in words. Life even on the smallest graduated table, cells, can be unpredictable and unmanageable.

IV. Hypothesis

If I put yeast in warm H2O with sugar and flour so the civilization will turn because the cells will reproduce through mitosis.

V. Experimental Procedure

A. Materials

1. Yeast

2. Warm H2O

3. Bowl

4. Sugar

5. Glass slide

6. Cover faux pas

7. Iodine

8. Microscope

9. Plastic wrap

B. Procedure

1. Pour 2.5 cups warm H2O into bowl.

2. Add 3 table spoons of sugar into the H2O and splash.

3. Add merely plenty barm to cover the surface of the H2O.

4. Stir easy for a few seconds.

5. Screen with fictile wrap.

6. Every 5 proceedingss measure the thickness of the bed of barm up to 1 hr.

7. After 15 proceedingss add.5 tablespoon sugar and splash once more.

8. After another 15 proceedingss stir and take a little sample of the yeast population.

9. Put the sample on a slide attention deficit disorder I and topographic point screen faux pas over sample.

10. Observe under a microscope on all three powers.

VI. Data/Results

A. Quantitative

Graph # 1

The thickness of the bed of barm after clip.

4mm

3.5mm

3mm

2.5mm

2mm

1.5mm

1mm

.5mm

0 5 10 15 20 25 30 35 40 45 50 55 60

Time in proceedingss

The information set that I studied should resemble an exponential theoretical account but because of clip restraints I merely observed the really beginning of its growing. If I gave the population more clip and I continued to add nutrient it would likely hold kept reproducing until restraints like infinite and/or its waste ( intoxicant and more ) began to decelerate its growing.

B. Qualitative

When I viewed the barm under the microscope, the cells appeared mean in size R

elative to the cells we looked for the other cell lab. I do non believe I used plenty iodine or I should hold used a different dice because I had a difficult clip seeing the karyon. I did see the cells divide but it wasn’t in great item. I couldn’t see the chromosomes but I did see the cell divide and blurry terra incognitas that was likely the karyon and possibly other cell organs. When I looked at the sample on the lowest power I could easy see the population grow, even though single cells could non be seen the sample seen ne’er stopped traveling.

VII. Decision

The chief ground I conducted this lab was to demo that mitosis is a procedure that in which cells reproduce. Personally I think that this is the most helpful lab we have done as of yet. The other labs were chiefly about mathematics or regulations. These concrete thoughts are merely as easy learned through talks and work. But this lab trades with living things. In order to larn about constructs that can non be worked out on a reckoner or memorized, a individual must see it. Unless we really see these cell map happening most people could non do the spring from a image on a paper to what it really must be like.

I am making this at place because I was non at school, therefor I do non cognize if the labs are similar to mine, ( or mine to theirs ) . I designed the lab this manner because I love to cook and eat. When I make bread barm is used and I already knew they reproduced and I knew by and large how they did it, now I merely know that it is called mitosis and involves many molecules with uneven names.

My lab showed that cells reproduce and that they do so by mitosis. Both watching the civilization grow larger over clip and seeing the cells through the microscope displayed the fact that cells reproduce. Looking through the microscope shows that cells split into two indistinguishable cells. By concentrating in on a few cells on the highest power and being patient a cell easy split into two cells. I moved the slide and once more after staying vigilant I saw cells split once more. Inside the karyon the chromosomes duplicated and were pulled to the centriols, all I could see was a dark topographic point grow oblong thin split.

If I put yeast in warm H2O with sugar so the civilization will turn because the cells will reproduce through mitosis. My hypothesis was right. The civilization grew and about doubled over an hr, and when I used the microscope to watch the cells I saw them go through mitosis.

Most of the jobs I encountered were easy solved because I was at place, one that I couldn & # 8217 ; t work out is that I ran out of I after a few ballups and it may non hold been the right dye to utilize anyhow. When I put flour in the first clip so it could last, but longer the flour stopped me from seeing the cells on the slide. All I had to make was rinse out the bowl and seek once more, excepting flour. Other little irritations were non holding the stuffs until the twenty-four hours before this is due and sloping. A possible job for others was a approval for me, I got to work entirely, and I didn & # 8217 ; Ts have anyone to decelerate me down, drop the ball off or try to lend when their aid is non wanted. The lone incommodiousness stemming from this was that there was no-body to take my spouse & # 8217 ; s topographic point in indicating out my rare careless error and/or stating something on subject and intelligent one time in a piece.

There are many things I would better upon, first and for-most is better equipment, viz. the microscope. If the microscope was more powerful I could hold gotten the full affect of seeing what took topographic point interior of the karyon. A different topographic point I could better upon is detecting the civilization over the span of a few yearss, this wouldn & # 8217 ; t precisely better the, mitosis portion of the lab but it would be nice if I could hold seen the full population theoretical account alternatively of merely the first section. My lab met all of the demands including being on clip therefor I label it a success.