Part A Cells that live in the ocean are often starved for phosphate and so their

Question

Part A Cells that live in the ocean are often starved for phosphate and so their growth is P limited. Cells that need less P to grow will have an advantage over cells that needs lots of P to grow. Which of the following might provide an evolutionary advantage to a bacterium growing in an environment where P is scarce. Check all possible answers which apply: the cells evolve to have a very small diameter the cells evolve a cell wall that lacks peptidoglycan the cells evolve to have very few proteins per cel the cells evolve to have a very small number of ribosomes the cells evolve to have a very small genome

Explanation / Answer

Under phosphate limitaion, bacterial cell evolve to grow with a cell wall that lacks peptidoglycan.

Phosphate limitation had a pleiotropic effect on the physiology of the strain, triggering cell elongation, the accumulation of polyhydroxyalkanoate, the degradation of polyphosphate, and the exchange of membrane lipids in favor of phosphorus-free lipids such as sulfoquinovosyl diacylglycerols.

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