Question

organisms that live at low ph (acidophiles) have to maintain a homeostasis of a ph - neutral cytoplasm by moving protons from the inside of the cell to the outside of the cell, where there is already a high concentration of protons. which of the following types of transport are these acidophilic organisms likely to use? simple diffusion active transport facilitated diffusion osmosis

Explanation:

Acidophiles move protons against their concentration gradient (from an area of lower proton - concentration inside the cell to an area of higher proton - concentration outside the cell). Simple diffusion and facilitated diffusion move substances along their concentration gradient, and osmosis is the movement of water. Active transport is the process that moves substances against their concentration gradient using energy.

Answer:

active transport