How Can Weak Acids and Weak Bases Cause PH Stress

question 7

Multiple Choice

How can weak acids and weak bases cause pH stress to cells?

• A) Only weak acids can cause stress by diffusing across a membrane at low pH.
• B) Weak acids and weak bases do not cause stress.
• C) If a cell has transporters that are not well regulated, weak acids or weak bases can accumulate inside the cells and cause stress.
• D) At certain pHs, both weak acids or weak bases will be uncharged and thus are small uncharged molecules that can diffuse across a membrane and cause pH stress inside the cell.
• E) Weak bases will only cause pH stress at low pH.

Identify and differentiate between diagrams of arguments and explanations based on structure.

Understand that a single hypothesis can explain multiple explananda.

Recognize the terminologies used in explanations, such as explanandum and hypothesis.

Evaluate the adequacy of hypotheses in explanations.

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Definitions:

Gastric Fluid

Fluid secreted by the stomach lining; contains digestive enzymes, acid, and mucus.

Food

Nutritious substances consumed by organisms for growth, repair, and maintenance of vital functions.

Fatty Acids

Long hydrocarbon chains that are a major component of lipids, serving as energy sources and structural elements in cell membranes.

Monoglycerides

Molecules made of one fatty acid attached to a glycerol backbone, important as emulsifiers in food production.