Refer to the Figures Below

question 160

Multiple Choice

Refer to the figures below. A student claims that adding functional groups onto carbohydrates does not provide any biological advantage.Which statement best evaluates this claim, using cellulose and chitin as evidence for the student's argument?

• A) The student's claim is valid, as shown by cellulose and chitin, which both serve the same biological role even though one has a chemical modification and the other does not.
• B) The student's claim is valid, as shown by cellulose and chitin, which require different enzymes for their synthesis and breakdown and thus create additional demands on cells.
• C) The student's claim is not valid, as shown by cellulose and chitin, which allow the same organism to have greater flexibility in the type of structural polysaccharide it can build.
• D) The student's claim is not valid, as shown by cellulose and chitin, which have different properties that enable different structures to develop in different organisms.
• E) The student's claim is not valid, as shown by cellulose and chitin, which have vastly different biological functions as the result of chemical modification in one and not the other.

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Definitions:

Orthostatic Hypotension

A form of low blood pressure that occurs when standing up from sitting or lying down, leading to dizziness or fainting.

Prolonged Bed Rest

Extended periods of lying down as part of a medical treatment, which can lead to complications such as muscle atrophy and pressure ulcers.

Cigarette Smoking

The act of inhaling and exhaling the smoke produced by burning tobacco in cigars, cigarettes, or pipes.

Hyperthermia

An elevated body temperature caused by failed thermoregulation, often resulting from external factors like environmental heat.