cAMP activates ________, which catalyzes the ________ of other enzymes in the cytoplasm.
A. protein kinase; phosphorylation
B. calmodulin; hydrolysis
C. tyrosine kinase; hydrolysis
D. calcium; phosphorylation
Answer: A
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Each of the following is an example of a nonmembranous organelle except
A) lysosomes. B) cilia. C) centrioles. D) ribosomes. E) cytoskeleton.
Which of the following blood vessels is not a great blood vessel of the heart?
What will be an ideal response?
Define dual innervation
A) Dual innervation means that a given body system sends both sensory impulses and receives motor commands. B) Dual innervation means that a given body system receives instructions from both the central and peripheral nervous systems. C) Dual innervation means that sensory neurons and motor neurons are present in the tissue. D) Dual innervation means that a given body system has twice the amount of neural stimulation needed to produce an action. E) Dual innervation means that a given body system receives instructions from both the sympathetic and parasympathetic divisions of the ANS.
What type of tissue has little extracellular matrix because it forms covering and lining layers for body structures?
A. connective B. epithelial C. muscle