Which of the following statements is true of gastric juice?
A) It neutralizes the acidic chyme before it enters the duodenum.
B) It aids the transformation of bolus into chyme.
C) It lubricates and protects the microvilli that cover enterocytes.
D) It stimulates the proliferation of the microbial population in the pancreas.
B
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Which of the following is the primary function of potassium?
a. Participates in wound healing b. Helps maintain gastric acidity c. Acts as principal intracellular electrolyte d. Protects bone structures against degeneration e. Acts as a neurotransmitter
Which process is NOT a source of ammonia ions in the body??
A) ?creation of urea by the liver B) ?generation by deamination of amide groups from glutamine C) ?ingestion and absorption from foods D) ?generation by bacterial lysis of urea and amino acids in the GI tract
Driven by a concentration gradient, lipids are absorbed through the process of
A. passive diffusion. B. facilitated diffusion. C. active transport. D. endocytosis.
What is the approximate daily basal metabolism of a 110-pound woman?
a. 500 kcal b. 1000 kcal c. 1500 kcal d. 2000 kcal