Cellulose Is Not Digested by Humans Because It

question 16

Multiple Choice

Cellulose is not digested by humans because it

• A) is a relatively insoluble protein-carbohydrate complex inaccessible to digestive enzymes.
• B) is a mucopolysaccharide, which is not a substrate for digestive enzymes.
• C) is highly sulfated, making it inaccessible to the action of most glycosidases.
• D) is a polymer of glucose molecules in beta 1-4 linkage for which we have no digestive enzymes.
• E) resists enzyme action due to its highly branched structure.

Recognize the impact of aging on hearing ability, particularly sensitivity to different frequencies.

Describe the evolutionary reasons behind preference for certain tastes like sweet and salty.

Explain the concept of tastants and their role in the perception of taste.

Understand the role and limitations of pheromones in human behavior and interaction.

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Definitions:

Mean

A statistical measure representing the central or typical value in a set of data, calculated as the sum divided by the number of observations.

Directional

Pertains to hypotheses or tests that specify the expected direction of the relationship or difference between variables, as opposed to non-directional or two-tailed tests.

Non-directional

A hypothesis that does not specify a direction of difference or association between two variables.

Standard Error

A measure of the statistical accuracy of an estimate, indicating how much the sample mean is expected to vary from the true population mean.