Which of the Following Statements Regarding Radiation Injury Is FALSE

question 33

Multiple Choice

Which of the following statements regarding radiation injury is FALSE?

• A) The amount of injury to an individual depends on the volume of tissue radiated.
• B) The lethal dose (LD 50/30) for humans is 1.5 grays.
• C) Younger, more rapidly dividing cells are more likely to incur damage.
• D) Individuals vary in radiation sensitivity within the same species.

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Definitions:

Thermic Effect

The increase in metabolic rate after eating, due to the energy required for digestion, absorption, and distribution of nutrients.

Food

Nutritious substances that organisms eat or absorb in order to maintain life and growth.

Basal Metabolic Rate

The speed at which the body consumes energy when in a resting state to uphold essential operations like breathing and maintaining body heat.

Vasoconstriction

The narrowing of blood vessels, which increases blood pressure and reduces blood flow to certain areas.