Some Animals Use Brown Fat as a Source of Heat

question 7

Multiple Choice

Some animals use brown fat as a source of heat generation. Which of the following statements about brown fat is false?

• A) Brown fat is involved in nonshivering thermogenesis.
• B) The protein thermogenin in brown fat is involved in uncoupling proton movement from ATP production.
• C) Brown fat is found in endotherms.
• D) Brown fat is highly vascularized.
• E) Brown fat cells contain few mitochondria

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Definitions:

Freons

A trademarked name for a group of chlorofluorocarbon (CFC) and hydrochlorofluorocarbon (HCFC) gases used primarily as refrigerants and aerosol propellants, now commonly linked to ozone depletion.

Propellants

Chemicals that are used to propel an object by generating gas under pressure; common in rockets and aerosol cans.

Aerosol Cans

Containers that use pressurized gas to dispense substances in a fine spray.

N-hexane

A straight-chain alkane with the formula C6H14, used as a non-polar solvent in the extraction of edible oils from seeds and vegetables.