Biol 1108 handout membranes

Biol 1108 handout membranes - 1 From single cells to...

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Unformatted text preview: 1 From single cells to multicellular life forms Dr. Kathrin Stanger-Hall Q1: As cell size increases, which of the following does NOT happen? a. SA increases b. V increases c. V increases faster than SA d. SA/V increases Q2: Larger organisms can be made by arranging several cells into a ball True (T) or False (F)? 2 Surface Area/Volume Ratio sets the limits ! Hollow balls: Colonial Algae Volvox (daughter cells inside hollow ball) Thin Sheets: Brown and Green Algae (Protists) Kelp forests Fields of “see lettuce” 3 Thin Sheets: Mosses & Liverworts Network of thin cell strands: fungal hyphae Invaginations: Sponges (Porifera) Sponges are the oldest animals 4 Invaginations: Jellyfish (Cnidaria) Sedentary stage: polyp Invaginations: Colonial Sea Anemones (Corals) Colonial anemones Thin Sheets: Corals 5 Thin sheets & Invagination: Flatworms Terrestrial fatworm Marine fatworms Too be continued…....
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This note was uploaded on 08/30/2009 for the course BIO NA taught by Professor Stanger-hall during the Fall '09 term at UGA.

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Biol 1108 handout membranes - 1 From single cells to...

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