Catalase-containing peroxisomes are most abundant in ______ cells
A. liver
B. kidney
C. pancreas
D. thymus
E. pituitary
A
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The first step in tissue repair involves ________
A) replacement of destroyed tissue by the same kind of cells B) formation of scar tissue C) proliferation of fibrous connective tissue D) inflammation
Physical connections of the medulla include
A) all fibers connecting the brain to the spinal cord. B) ascending tracts, but not descending tracts, from the brain. C) descending tracts, but not ascending tracts, to the brain. D) direct links between the spinal cord and cerebellarl hemispheres. E) All of the answers are correct.
Within intestinal epithelial cells, lipids are wrapped in a protein coat to form ________, which will be packaged into secretory vesicles at the Golgi apparatus.
What will be an ideal response?
For the repolarization phase of an SA nodal cell action potential,
A. calcium channels open and sodium channels close. B. sodium and potassium channels open. C. calcium and potassium channels close. D. sodium and chloride channels open. E. calcium channels close and potassium channels open.