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Epithelial cells of the mucous membrane (of the mucosal layer) are classified .

ID: 3484007 • Letter: E

Question

Epithelial cells of the mucous membrane (of the mucosal layer) are classified . cells if they secrete fluids and enzymes into the lumen and cells if they release hormones into the bloodstream. as A) endocrine : absorptive B) exocrine : endocrine C) endocrine : exocrine D) absorptive: endocrine E) exocrine : absorptive Which of the following is NOT a basic process of the gastrointestinal system? A) digestion B) filtration C) absorption D) secretion E) motility Digestion refers to the process that breaks down larger molecules into smaller molecules within the lumen of the digestive tract. True False Once the chyme begins to enter the duodenum, it must first be before any of the enzymes in the pancreatic juices can be activated. A) neutralized B) acidified C) dehydrated D) hydrated E) phosphorylated . Which of the following is NOT a normal function of the high acidity of the stomach? A) activate pepsin B) denature proteins C) destroy foodborne bacteria

Explanation / Answer

1. B. exocrine : endocrine

2. B. filtration

3. True, Digestion refers to the process that breaks larger molecules into smaller molecules within the lumen of the digestive tract.

4. A. neutralized

Brunner's glands in the duodenum secrete an alkaline mucus that neuralizes the hydrochloric acid present in the chyme due to the presence of high concentration of bicarbonate ions.

5. B. denatures proteins