31.Which of the following hormones stimulates appetite?

a.PYY

b.leptin

c.ghrelin

d.cholecystokinin

32.Which of the following proteins mimics the glucose-lowering effects of insulin?

a.PYY

b.resistin

c.leptin

d.visfatin

33.Which of these serves as the body’s chief storage site for lipids?

a.yellow fat

b.brown adipose tissue

c.white adipose tissue

d.high-density lipoproteins

34.Which of the following is the significance of the uncoupling proteins in adipose tissue?

a.increased loss of body heat

b.reduction of fat cell number

c.lowering of basal metabolism

d.proliferation of fat cell number

35.What type of adipose tissue is most effective at helping someone to maintain warm body temperatures during the coldest parts of the year?

a.black

b.white

c.brown

d.yellow

36.In which of the following groups of individuals is brown fat especially important?

a.newborns

b.adolescents

c.middle-aged adults

d.the elderly

37.What is the chief factor that determines a person’s susceptibility to obesity?

a.heredity only

b.environment only

c.fat content only

d.heredity and environment

38.Which of the following is the best evidence that environment must play a role in obesity?

a.the rate of obesity has been rising while the gene pool has remained relatively constant

b.the recognition that identical twins reared apart have body weights similar to their biological parents

c.the development of precise body composition methodologies that define adipose storage sites based on gender

d.the discovery of uncoupling proteins that explain the variations in energy metabolism among lean and overweight people

39.Suzanne is at a fast-food restaurant and she agrees to “supersize” her meal. Approximately how many more kcalories will Suzanne now consume?

a.400

b.500

c.600

d.700

40.Which of the following is lower in obese people compared to non-obese people?

a.basal metabolic rate

b.thermic effect of food

c.physical activity level

d.metabolic response to exercise