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Transcript
Science 10 Assignment U3L6 (20 marks) 1. Define the following terms : (3 marks) a) surface area b) volume c) surface area to volume area 2. As a cell gets larger, how does its surface area to volume ratio change ? (1 mark) 3. what is the limiting factor when it comes to the size of a cell ? Explain. (2 marks) 4. As the cell grows larger and increases in volume, will it need more or less cell membrane to survive ? Explain (2 marks) 5. How does the surface area to volume ratio of a cell affect the rate of diffusion of materials across the cell’s surface ? (1 mark) 6. What determines the size and shape of cells in multicellular organisms ? (2 marks) 7. A cell have the dimensions of 2um x 2 um x 3 um. Determine the surface area, volume and surface area to volume ratio of the cell. Show all of your work (9 marks)