BIOL UN2005 Midterm: Exam 1 2017

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Exam 1 un2005 2017 sept. 28, 2017 answer key: suppose human skin cells in the bottom layer of the skin divide by binary fission with a generation time of 20 hours. However, of the 2 daughter cells, only 1 goes on to grow and divide. The other is viable and remains present but does not divide further. The cells that are capable of division are called stem cells. If we start with one new stem cell at time zero, then : After 100 hrs, the number of total cells will be 6 and the number of stem cells will be 1. This type of growth is best described as (exponential) (semi-exponential) (linear) (none of these) a diagram will suffice for an explanation. At normal cellular ph, you would expect this polysaccharide to form a substance similar to (what"s in a shirt) (what"s in a potato) (either one) (neither)