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Factors affecting the stability of plant cell membranes.
Member rating: No Rating | Words: | Submitted: Mon Feb 16 2004
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Harriet walden 13/10/03 Factors affecting the stability of plant cell membranes. AIM: To investigate the effect of temperature, and of acids and fat solvents on the stability of the cells' outer plasma membrane. PLAN: In the cell cytoplasm and vacuoles of beetroot there is a purple anthocyanin pigment. This can be used to investigate what factors affect the integrity of the cells' outer plasma membrane. I will be investigating the effect of temperature and the effect of acids and fat solvents. To investigate the effects of temperature I will use 6 different temperatures and record the appearance of the water in the test tube with a beetroot core after 2,5,10 and 15 minutes. The temperatures are created by placing the test tubes in ice, leaving at room temperature and placing in water baths of 30, 40, 50and 60 C. With each different solution I will record the percentage transmission of light. By using a...
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