The role of ATP in the sodium-potassium pump is to:
a. transfer NA+ to the inside of a cell.
b. assist a NA+ to bind to a carbohydrate.
c. transfer NA+ to the outside of a cell.
d. assist a cell to release NA+ by exocytosis.
e. assist a cell to take up NA+ by endocytosis.
c
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The most prominent tissue in the stems of herbaceous plants is
a. epidermis. b. parenchyma. c. phloem. d. xylem.
Which of the following leads to the destruction of the host cells?
A) lysogenic cycle B) lytic cycle C) prophage D) temperate phage
Rheumatic fever is a sequalae of repeated infection with Streptococcus pyogenes. The pathogenesis involved in this complication is molecular mimicry of the valves of the heart
a. true b. false
Which of the following terms refers to a reversible change in the normal shape, size, and organization of tissue cells?
A) metaplasia B) metastasis C) dysplasia D) anaplasia E) inflammation