Just remember the basic rule: More Essay Examples Biolab 1208 lab report Blood Rubric The flow of water across a permeable membrane is called osmosis, and during this process, water moves down its concentration gradient - Bio Lab Report Essay introduction.
Audience Write the report as if you were writing to other students who are taking a similar course but have not done this experiment. Another consideration would be to make sure blood or blood products are stored in the proper medium so they will be as healthy as possible when needed.
When the solution is isotonic the same concentration of solutes as the cellthe cell neither gains nor loses water by osmosis.
All writing should be on only one side of the page, and the reports should be stapled in the upper left-hand corner. Please follow the instructions given below when writing lab reports for this course.
It is hypothesized that the Biolab 1208 lab report the molarity of sucrose solution the lower the osmotic concentration. The osmotic concentrations were zero in sucrose solutions of 0. A weigh boat, containing the potato tuber disks, and balance was then used to determine the mass of each of the potato tuber segments.
References If you use outside sources, and you should, then cite those sources in the body of the report and list the references in a literature cited section.
If the solution is hypotonic containing fewer solute particles than the inside of the cellthe water will move from the solution into the cell.
The percent changes in mass Biolab 1208 lab report 0 to 0. The null hypothesis is that the molarity of sucrose will not change the osmotic concentration of the potato tuber.
The percent change in mass decreased as the sucrose concentration increased Figure 1. In this experiment, the permeability properties of plasma membranes are studied by viewing what happens to red blood cells when isotonic, hypertonic, or hypotonic solutions are added and to determine if these solutions have any net effect on cell shape by promoting net osmosis.
Collaboration You may talk about the lab exercise as much as you like while in the laboratory. One note, the hemolysis bursting of the red blood cells was not seen specifically — the cells appeared to get bigger, then they were no longer visible.
The percent change in mass decreased as the sucrose concentration increased. If the idea is not published but is provided by a lab partner or someone else, give the reference as a personal communication N. More Essay Examples on Chemistry Rubric When a solution has a higher concentration of solute within the cell than out, it is called hypertonic.
Biological Laboratories for Science Majors. Once the initial mass of each segment was collected, the disks were then incubated each in a different concentration of sucrose; 0.
A solution surrounding a cell is hypertonic if it contains more solute particles than the inside of the cell, and the water will move out of the cell into the surrounding hypertonic solution by osmosis.
The osmotic concentration was greater than zero in sucrose solutions of 0. When the experiment was done, the supplies were put away, the used slides were disposed of in the proper container, and the table was disinfected. When a solution has a lower concentration of solute within the cell than out, it is called hypotonic.
Assume that they have some familiarity with the subject matter but no expertise. The potato tubers were cut into segments of equal width, approximately 4 cm, and placed in a wet towel to prevent the tissue from drying out.
It is predicted the blood cells will: The report must be typed or word-processed. The final mass was recorded. Then each segment was sliced into small disks, approximately 2mm. Above all, remember to write with precision, clarity, and economy.
The writing should not be too self-referential e. Do not write specifically for the instructor. Writing Your writing should be in full sentences and easily understood. After soaking the potato tubers in different concentrations of sucrose, then calculating the percent change in mass, we can determine the osmotic concentration.
Outside the lab, though, you should not discuss your writing of the report with anyone else, other than a tutor at the Writing Center. You may talk about the lab exercise as much as you like while in the laboratory.
The following are sample citations: You may and are encouraged to discuss the experiment itself with anyone at anytime to ensure that you have understood it.Study 53 Biology Lab flashcards from Darrian L.
on StudyBlue. Here is the best resource for homework help with BIO LAB at Louisiana State University. Find BIO LAB study guides, notes, and practice tests from. The first page of a lab report should be a title page with the title of the report, your name, the date, the course (e.g., Biology ), and your lab partners.
There should then follow text that is a minimum of two pages and a maximum of five double-spaced, typewritten pages in length (tables, figures, and references do not count in this total).
Biolab Lab Report Essay BIOL Lab Report Cover Sheet I certify that the writing in this assignment is my individual work and is my sole intellectual property.
It does not contain the ideas or writing of other individuals/authors. More Essay Examples on Blood Rubric. The flow of water across a permeable membrane is called osmosis, and during this process, water moves down its concentration gradient - Bio Lab Report introduction.
A solution surrounding a cell is hypertonic if it contains more solute particles than the inside of the cell, and the water will move out of the cell into.
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