Which of the following bacterial transpo methods is energy independent?
Correct Answer: Simple diffusion
Description: Almost no impoant nutrients enter the bacterial cell through simple diffusion, an exception being carbon dioxide and oxygen. Some diffusion, however, is facilitated by specific protein carriers. Most transpo, except simple diffusion, is energy- dependent, paicularly in Gram-negative bacteria. Group translocation occurs in the absence of oxygen. For example, a simple carbohydrate such as glucose is phosphorylated enzymatically and is then transpoed into the cell.
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