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Post-Test
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1
_____ are protein molecules that speed up digestion by catalyzing chemical reactions.
A)Antibodies
B)Hormones
C)Amino acids
D)Enzymes
2
Which of the following is TRUE about hydrolysis reactions?
A)They never yield small enough molecules to be absorbed by the small intestine
B)Sucrose cannot be broken apart by a hydrolysis reaction
C)Hydrolysis reactions help split apart molecules to smaller units that can be absorbed through the wall of the small intestine
D)Digestive enzymes do not help the process of hydrolysis to occur
3
Digestive enzymes aid mostly in the breakdown of
A)carbohydrates.
B)lipids.
C)proteins.
D)All of these choices are correct
4
Which of the following is a major hormone of the GI tract that triggers the stomach to release HCL?
A)Gastrin
B)Secretin
C)CCK
D)Gastric Inhibitory Peptide
5
Which of the following is NOT one of the five basic taste sensations?
A)Salty
B)Umami
C)Dryness
D)Bitter
6
Which of the following gastric disorders is caused by an allergic reaction to a protein called gluten?
A)Celiac disease
B)Colon cancer
C)Heartburn
D)Crohn’s disease
7
Villi are found mainly in the ____.
A)large intestine
B)small intestine
C)esophagus
D)liver
8
Which of the following may contribute to gastroesophageal reflex disease (GERD)?
A)Alcohol use
B)Obesity
C)Smoking
D)All of these choices are correct
9
All of the following are prebiotics EXCEPT
A)inulin.
B)yogurt.
C)legumes.
D)whole grains.
10
Which of the following are NOT common digestive disorders?
A)Peptic ulcers and gallstones
B)Constipation and GERD
C)Heart disease and stroke
D)Peptic ulcers, gallstones, constipation, and GERD
11
Which of the following is TRUE about the absorption of nutrients?
A)Passive diffusion requires ATP for absorption
B)Facilitated diffusion requires carrier lipids to shuttle nutrients from the lumen into absorptive cells
C)Fats, water, and some minerals are absorbed by passive diffusion
D)All of these choices are correct
12
What is a nutritional factor that can increase the risk of gallstones?
A)Low fiber
B)Regular physical activity
C)Underweight
D)Excess potassium
13
What is TRUE about intestinal gas?
A)People pass gas about 14 times per day
B)Oxygen is responsible for the unpleasant odor associated with gas
C)Lactose does not cause gas in people
D)Gas contains only 2 elements: oxygen and sulfur
14
Piles or swollen veins around the rectum and anus are called _____.
A)constipation
B)polyps
C)GERD
D)hemorrhoids
15
What is the basic molecule that supplies energy for cellular processes and reactions?
A)DNA
B)ATP
C)mRNA
D)tRNA





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