lab 4 bsc

lab 4 bsc

Jasmine Jones
Lab 4: Cell structures and the Gram Stain
The purpose of this lab is to help I, the student, be familiarized with the use of a compound microscope and the gram stain test.

If you understand cell structures and are slightly familiar with the use of a compound microscope or the gram stain method, you will be able to easily identify the parts necessary located in each slide along with being able to produce accurate results with each procedure
Materials & Methods
Color pencils or markers
Watch the cell videos in the lab. Once watching the videos, grab a sheet of paper and a few color pencils. Once review the first slide elodea, watch the video on it, and then sketch the cell wall and chloroplast. Try sketching it as close as possible to resemble the slide, then once doing so, label the parts along with using the same colors for the slide. Continue to do this for each of the slides listed. Once completing this, scan the sketches and upload them with your lab report.
Lab Questions:
Part A: Cell structures
1.) The chloroplast is traveling along the outer perimeter of the elodea cell so that it can help move the vital nutrients through the cell and change them to the certain substances that are used in the elodea cell.
2.) the typical size difference between animal cells and bacterial cells is that animal cell have membrane bound organelles while bacteria cells don’t which makes them bigger than bacteria cells so bacterial cells are smaller than animal cells.

Part B: Gram stain
Materials & Methods

Gram stain video
Watch the gram stain method video and answer the questions within the lab report
1.) This procedure is used to separate the gram positive and negative bacteria
2.) This separation is based on differences in the cell wall of the bacteria
3.) The iodine used for this staining technique is for the fixed cells to be...

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