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A dieter who is actively losing fat tissue may fell hungry due to increased leptin secretion.
TF

F

A healthy large intestine harbors a large number of beneficial bacteria.
TF

T

Bile acids from the liver break fat globules into droplets but do not digest the triglycerides.
TF

T

Components of pancreatic juice digest all of the following nutrient molecules except _____. A nucleic acids
B proteins
C starch
D triglycerides
E amylase

E

Enzymes that digest starch are secreted by two accessory organs in the digestive system.
TF

T

Histamine is a paracrine regulator that stimulates HCl secretion in the gastric glands.
TF

T

The _____ phase of stomach regulation may involve gastric secretion prior to eating.
A cephalic
B gastric
C intestinal
D somatic

A

The blood vessel that transports blood into the liver is the
A central vein
B hepatic artery
C hepatic portal vein
D hepatic vein
E Both B and C are correct.

E

The greatest component of a resting body's caloric expenditure is the _____. A basal metabolic rate
B adaptive thermogenesis
C physical activity

A

The HCl in the stomach serves to perform all of the following except
A activate the enzyme pepsinogen.
B break peptide bonds in proteins.
C denature proteins in food.
D provide optimum pH for pepsin.

B

The hormone that stimulates bile secretion and release is cholecystokinin.
TF

T

The main hormone that stimulates hunger is _____.
A CCK
B polypeptide Y-Y
C leptin
D ghrelin
E insulin

D

The products of carbohydrate and protein are absorbed into the blood but products of triglyceride digestion are not.
TF

T

Which of the following are absorbed into the epithelial cells of the intestinal villi, but not into the blood?
A amino acids
B dipeptides
C tripeptides
D Both B and C are correct.
E A, B, and C are all correct.

D

Which of the following is not a function of the liver?
A bile production
B digestive enzyme production
C glycogen storage
D lipid metabolism
E synthesis of plasma proteins

NOT C

The brain region that contains the hunger center is the ______.

hypothalamus

Brush-border enzymes function in the digestion of disaccharides and polypeptides.
TF

T

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