Nutrient absorption is mediated by the

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Quizplus · Accepted Answer

Nutrient absorption in bacteria is mainly mediated by the cell membrane. This is where transport systems like permeases and transporters are located, which facilitate the movement of nutrients across the membrane into the cytoplasm for metabolic processes. The cell wall and peptidoglycan layer provide structural support and protection but are not directly involved in nutrient absorption. Proteins in the periplasmic space may be involved in nutrient uptake, but they are not the main mediators. The nuclear membrane is not present in prokaryotic cells, including bacteria.

Nutrient Absorption Is Mediated by the