Gastrointestinal System
Which fluid within the body is likely to have the HIGHEST pH?
The contents of the ileum
The contents of the start of the duodenum
The blood
The contents of the stomach
The contents of the ileum
Highest pH means the most alkaline. Blood pH is about 7.4, which is less than in the intestines. The proximal part of the duodenum will receive acidic chyme from the stomach, so its pH will be lowered by that. A is the best choice.
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D. The conversion of glycogen into glucose in muscle tissue
What is the process in the digestion of food molecules that produces their monomers called?
A. Polymerisation
B. Hydrolysis
C. Isomerisation
D. Deamination
What are the end-products of carbohydrate digestion?
A. Monosaccharides
B. Disaccharides
C. Glucose
D. Risaccharides
What the products of hydrolysis of lipids?
A. Monosaccharides
B. Chylomicrons
C. Amino acids and small peptides
D. Free fatty acids and monoglycerols
What is a function of the SMALL intestine? To:
A. Temporarily store ingested food
B. Absorb the products of digestion
C. Participate in mechanical digestion
D. Secrete hydrochloric acid
Which enzyme below digests proteins?
A. Nuclease
B. Maltase
C. Carboxypeptidase
D. Transaminase
Which layer of the alimentary canal is responsible for absorbing the products of digestion?
A. Muscularis interna
B. Mucosa
C. Serosa
D. Submucosa
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