How does leptin function?
What will be an ideal response?
Leptin is a satiety signal. It acts on receptors found in the hypothalamus to decrease hunger and food intake, probably by inhibiting neuropeptide Y, a hormone that stimulates hunger. At the same time, leptin creates a negative energy balance by raising the body temperature, which in turn increases energy expenditure and stimulates the oxidation of fatty acids in the liver and muscles. Thus, leptin regulates the amount of fat stored in the adipose tissue.
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Which of the following conditions is a common nutrition-related sign of early pregnancy that occurs in many healthy pregnant women?
A. Morning sickness B. Iron-deficiency anemia C. Eclampsia D. Gestational diabetes
When excess carbon dioxide is exhaled from the lungs, blood pH decreases
Indicate whether the statement is true or false
On average, how many calories per gram does fiber provide to the body?
A) 0 calories per gram B) 2 calories per gram C) 4 calories per gram D) 7 calories per gram
At the beginning of the tricarboxylic acid (TCA) cycle, oxaloacetate is converted into which of the following molecules?
A. pyruvate B. citrate C. ATP D. carbon dioxide