Question

what factors govern shape and size of cell

Answer 1

Hey there!!!



=>> The shape and size of cell depends on the function it performs. For example, RBCs are designed in such a way that they have to carry oxygen in the bound form with haemoglobin. Nucleus occupies adequate space in the cell. So, RBCs do not have nucleus in order to accommodate more haemoglobin to carry oxygen. 



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Answer 2

Each cell type has evolved a shape that is best related to its function. For example, the neuron in Figure below has long, thin extensions (axons and dendrites) that reach out to other nerve cells. The extensions help the neuron pass chemical and electrical messages quickly through the body.

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