Which of the Following Types of Molecules May Passively Diffuse

question 57

Multiple Choice

Which of the following types of molecules may passively diffuse across a membrane?

• A) an amino acid in a low pH environment
• B) a weak acid in a high pH environment
• C) a large polar molecule such as a sugar
• D) a small uncharged molecule such as water
• E) No molecules can diffuse across a membrane.

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Definitions:

Somatic Cells

These are any cells forming the body of an organism, excluding reproductive cells.

Mutations

Changes in the DNA sequence of an organism's genome that can lead to variations in physical appearance, function, or behavior.

Nonrandom Mating

A mating pattern in which individuals within a population choose mates based on particular traits or proximity, rather than mating at random.

Genotype

The genetic makeup of an organism, consisting of all the DNA sequences that code for its physical and physiological traits.