Plasma membrane, Cytoplasm
Answer:
C. The pH is too acidic
Explanation:
Many acids and bases in living things are secreted to provide the proper pH for enzymes to work properly. Enzymes are biological catalysts, such as pepsin, which is needed to digest protein in the stomach and requires an acidic environment.
A buffer is a solution that can resist pH change upon the addition of an acidic or basic components. This is important for processes and/or reactions which require specific and stable pH ranges. Buffer solutions have a working pH range and capacity which dictate how much acid/base can be neutralized before pH changes, and the amount by which it will change.
Answer: Diffusion
Explanation:
Diffusion is the movement of solutes (usually gases) from a region of high concentration to low concentration.
A good example is the diffusion of fart released in one corner throughout the room.