Question

question 3
1 pts
________ is a chemical messenger secreted by fat cells that acts as an appetite suppressant.
orexin
angiotensin
leptin
ghrelin
question 4
1 pts
in order to be classified as morbidly obese, an adult must have a bmi of ________.
less than 25
25–29.9
30–39.9
40 or more

Explanation:

• Question 3: Leptin is a hormone (chemical messenger) produced by fat cells (adipocytes). It acts on the hypothalamus in the brain to reduce appetite and increase energy expenditure. Orexin is involved in wakefulness and appetite increase. Angiotensin is related to blood pressure regulation. Ghrelin is a "hunger hormone" that increases appetite.
• Question 4: According to the World Health Organization (WHO) classification, a BMI (Body Mass Index) of less than 18.5 is underweight, 18.5 - 24.9 is normal weight, 25 - 29.9 is overweight, 30 - 39.9 is obese, and 40 or more is morbidly (severely) obese.

Answer:

• Question 3: leptin
• Question 4: 40 or more