Another factor limiting cell size is the requirement for one nucleus to control the entire cytoplasmic volume of the cell. The nucleau can better control a smaller cell. Draw a generalized prokaryotic cell. No explanation necessary, look at syllabus 1.2.2 State one function of each of the following. The wall protects the plant cell, maintains its shape, and prevents excessive uptake of water.
Flagella are locomotive appendages of microtubules that protude from some cells.
If flagellum are held by tissue layer, then they function to draw liquid over the surface of the tissue. A flagellum has a core of microtubules ensheathed in an extension of the plasma membrane. 9 doublets of microtubules are arranged in a circle and there are 2 single microtubules in the middle. The microtubule is anchored by a basal body which is structurally identical to a centriole. Discuss the possible origins of eukaryotic cells, referring to the theory of endosymbiosis.