... and arrange specific chemicals and reactions into specific organelles. Past experiments shows that by distracting the cellular structure, an assessment of this action on cell membrane can be done (Weigel 1983). In this experiment, various temperatures on the function of membrane of living beet cells (Beta Vulgaris) will be tested. Beet cells are red because they contain a pigment located in the central ... water in which the beet is immersed if the membranes are broken. Discs of beet roots will be placed in different temperatures, the amount of betacyanin that leaks from the cell will e...

• Word Count: 592
• Approx Pages: 2
• Grade Level: Undergraduate

... environment. The major barrier of uptake for a toxicant is the cell membrane or cell wall at the site of uptake, for example; cell membrane of gastrointestinal tract or skin, epithelial cell of gill and tracheae, or cell wall of plant root. There are four principal processes involved in the movement of toxicants across the cell membrane. These include: passive diffusion, facilitated transport, active transport ... during the facilitated transport process. Active transport occurs when the toxicant's molecule is actively combined with a carrier. During the step of Pinocytosis the cell membr...

• Word Count: 1197
• Approx Pages: 5
• Has Bibliography
• Grade Level: Undergraduate