Which is TRUE about the resting membrane potential?
A. Only nerve and muscle cells have a potential difference across the membrane at rest.
B. It requires very few ions to be distributed unevenly.
C. It is oriented so that the cell's interior is positive with respect to the extracellular fluid.
D. It has the same value in all cells.
E. It is not altered by changing concentration gradients of permeating ions.
Answer: B
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A. Formation of urea B. Maintaining blood glucose concentration C. Secretion of bile D. Secretion of insulin
Which of the following is not a function of gastric hydrochloric acid (HCl)?
A. Destroy ingested pathogens B. Emulsify lipids C. Activate pepsinogen to pepsin D. Activate lingual lipase E. Convert Fe3+ to Fe2+
The pericardial cavity contains which of the following?
A) heart B) brain C) intestines D) liver E) both the heart and the liver
Tyrosine kinase is a key participant in two different signaling pathways: the tyrosine kinase pathway and the ____________________ pathway
Fill in the blank(s) with correct word