Test 4 Final 1

Front 1

26) Upon activation by stomach acidity, the secretions of the parietal cells

A) initiate the digestion of protein in the stomach.
B) initiate the mechanical digestion of lipids in the stomach.
C) initiate the chemical digestion of lipids in the stomach.
D) include pepsinogen.
E) delay digestion until the food arrives in the small intestine.

Back 1

A) initiate the digestion of protein in the stomach.

Front 2

38) A significant contribution of intestinal bacteria to human nutrition is the benefit of bacterial

A) production of vitamins A and C.
B) generation of gases needed for elimination.
C) absorption of organic materials.
D) production of vitamin K.
E) recovery of water from fecal matter.

Back 2

D) production of vitamin K.

Front 3

50) Hypoglycemia, or low levels of glucose in the blood of a healthy human, is "corrected" by a(n)

A) increase in the secretion of insulin.
B) increase in the secretion of glucagon.
C) increase in the secretion of both insulin and glucagon.
D) decrease in the secretion of both insulin and glucagon.
E) increase in the secretion of thyroid hormones.

Back 3

B) increase in the secretion of glucagon.

Front 4

52) Obesity in humans is most clearly linked to

A) type 1 diabetes and prostate cancer.
B) type 1 diabetes and breast cancer.
C) type 2 diabetes and muscle hypertrophy.
D) type 2 diabetes and cardiovascular disease.
E) type 2 diabetes and decreased appetite

Back 4

D) type 2 diabetes and cardiovascular disease.

Front 5

57) Leptin is a product of adipose cells. Therefore, a very obese mouse would be expected to have

A) increased gene expression of ob and decreased expression of db.
B) increased gene expression of db and decreased expression of ob.
C) decreased transcription of both ob and db.
D) mutation of ob or db.

Back 5

D) mutation of ob or db.

Front 6

58) Many obese humans produce normal or increased levels of leptin without satiety, so the search for healthy regulation of food intake should focus on

A) providing supplementary leptin.
B) inactivation of leptin.
C) overexpression of the leptin receptor gene.
D) eliminating carbohydrates from the diet.
E) inhibition of leptin receptors.

Back 6

D) eliminating carbohydrates from the diet.

Front 7

59) Which of the following animals is incorrectly paired with its feeding mechanism?

A) lionsubstrate feeder
B) baleen whalesuspension feeder
C) aphidfluid feeder
D) clamsuspension feeder
E) snakebulk feeder

Back 7

A) lionsubstrate feeder

Front 8

60) The mammalian trachea and esophagus both connect to the

A) large intestine.
B) stomach.
C) pharynx.
D) rectum.
E) epiglottis.

Back 8

C) pharynx.

Front 9

61) Which of the following organs is incorrectly paired with its function?

A) stomachprotein digestion
B) oral cavitystarch digestion
C) large intestinebile production
D) small intestinenutrient absorption
E) pancreasenzyme production

Back 9

C) large intestinebile production

Front 10

62) Which of the following is not a major activity of the stomach?

A) mechanical digestion
B) HCl secretion
C) mucus secretion
D) nutrient absorption
E) enzyme secretion

Back 10

D) nutrient absorption

Front 11

63) After surgical removal of an infected gallbladder, a person must be especially careful to restrict dietary intake of

A) starch.
B) protein.
C) sugar.
D) fat.
E) water.

Back 11

D) fat

Front 12

64) If you were to jog 1 km a few hours after lunch, which stored fuel would you probably tap?

A) muscle proteins
B) muscle and liver glycogen
C) fat stored in the liver
D) fat stored in adipose tissue
E) blood proteins

Back 12

B) muscle and liver glycogen