The brain neurotransmitter that is an important stimulus for food intake is
C) neuropeptide Y.
4) Energy input equals energy output. This statement is known as the
A) first law of thermodynamics.
B) second law of thermodynamics.
C) law of mass balance.
5) The first law of thermodynamics states that
A) the total amount of energy in the universe is variable.
B) energy can be neither created nor destroyed and thus must be accounted for.
C) what heats up must cool down.
D) natural processes move from order to disorder, or entropy.
E) there is no way a process can increase the amount of order.
6) One kilocalorie (kcal) is the amount of energy needed to raise one ________ of water by 1 degree Celsius.
7) A bomb calorimeter measures
A) the carbon dioxide produced when a food sample is completely combusted.
B) the oxygen consumed when a food sample is completely combusted.
C) only the food calories available to the human body.
D) the heat produced when a food sample is completely combusted.
E) both carbon dioxide produced and oxygen consumed when a food sample is completely combusted.
8) Which of the following can be measured to determine a person's metabolic rate?
A) only heat released from body in sealed chamber
B) only oxygen consumed by body in sealed chamber
C) only carbon dioxide produced by body in sealed chamber
D) heat released from body in sealed chamber, oxygen consumed by body in sealed chamber, and carbon dioxide produced by body in sealed chamber
E) None of these answers are correct.
9) The respiratory quotient is ________ for consumed carbohydrates compared to proteins and fats.
C) the same
10) The most practical way to estimate a person's basal metabolic rate is to measure it when the person is
B) resting after a large meal.
C) resting after a hour fast.
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