Diffusion is vital to many life functions of a cell, it allow the transportation of vitally important nutrients and compounds without the expenditure of excess metabolic energy. To explain diffusion, it is as if a bottle of perfume is opened at one end of the room, then in a short amount of time a person at the other end of the room can detect the scent of the perfume; this is the process of diffusion. Diffusion is a movement from a higher concentration to a lower concentration. A special kind of diffusion is known as osmosis, osmosis is fundamental in many industrial processes such a water purification, desalination, and waste material treatment.
Hire Writer Change the objective lens for a higher magnification on your sample solo, ex. SE a cotton swap to take a smear of the cells from the Inside of your own cheek.
Gently wipe the cheek smear onto a clean, glass slide. Try get it central to the slide and be careful not to break the slide. Afterwards place the used tone swab into a beaker of detergent to stop the spread of infection.
Add one drop of methyl blue on top of your sample. Use a pin to carefully lower the cover slip over the slide, ensure there are no air bubbles before the use of the slide.
Use filter paper to take off any excess dye from the slide as to see the cells more clearly Set the microscope to its lowest power objective lens xx and make sure It Is in line with the optical tube, also that the microscope light is turned on.
Looking from eye-level of the stand, lower the tube using the coarse focus know until the end of the objective lens is Just about the slide ensure you do this with care as to not break the slide. Look through the eyepiece at your slide and turn the fine focusing knob as to bring the Image into focus be able to see onion cell clearly.
Change the objective lens for a higher magnification on your sample Klux, ex. Tater ten use AT each slide has been used place them into the beaker of disinfectant to be disposed of properly. Once you have achieved a clear image of your cell record what you have Cheek cells Methyl Blue Disinfectant and beaker How to cite this page Choose cite format:Sep 30, · Global studies dbq essays science and beauty essay ap biology long essay (jade musalsal essays) uk vs us constitution essay fatliquor synthesis essay good thesis for narrative essay mit application essays ucsd how to start an essay body paragraph expository essay on drinking and driving.
(KAR) and trimethylbutenolides (TMB) are water-soluble compounds found in smoke that are deposited in the soil as a result of a fire. KAR and TMB bind to receptor proteins in a seed. Ap Biology Egg Osmosis Lab Essay Words | 3 Pages AP Biology August 23, Egg Osmosis Lab Definition of osmosis: The diffusion of water across a selectively permeable membrane from high to low concentrations Hypothesis: If I place an egg in vinegar, then the outer layer of the egg is going to become slimy and look like rubber.
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send me this sample. Leave your . AP: LAB-RELATED AP EXAM ESSAYS LAB 1. OSMOSIS AND DIFFUSION ESSAY A laboratory assistant prepared solutions of M, M, M, and M sucrose, but forgot MOLECULAR BIOLOGY (1) ESSAY The diagram below shows a segment of DNA with a total length of 4, base pairs.
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