The primary intracellular buffer system is the __ system.
select one:
A. phosphate
B. bicarbonate
C. protein
Answer is C. protein
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Flat cells with tapered ends that are the most abundant resident cells in connective tissue proper are known as ___________
Fill in the blank with correct word.
The role of cAMP when it acts as an intracellular mediator in cells is to
A. bind to and activate protein kinase. B. activate genes in the nucleus to produce mRNA. C. directly activate structural enzymes in the cytoplasm of the target cell. D. catalyze a cascade reaction that ultimately activates genes on the DNA. E. control levels of calcium in the cell.
All of the following are mechanoreceptors except ________.
A. tactile corpuscles B. sensory neurons wrapped around hair follicles C. cone cells D. lamellated corpuscles
The removal of amine groups from amino acids results in the formation of ________.
A. creatinine B. uric acid C. urea D. ammonia