Protein kinase A is activated by
a. phosphorylation of its catalytic subunit.
b. phosphorylation of its regulatory subunits.
c. binding of cAMP to its catalytic subunits.
d. binding of cAMP to its regulatory subunits.
Ans: c. binding of cAMP to its catalytic subunits.
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Insects possess ____ , circulatory systems in which hemolymph completely "bathes" the organs and is not typically contained in distinct arteries or veins
Fill in the blank with the appropriate word.
What is one potential fate for a proton in the mitochondrial matrix?
a. They are attached to NAD+ and FAD. b. They combine with oxygen to form water. c. They synthesize ATP by substrate-level phosphorylation. d. They help in the production of CO2. e. They regenerate Coenzyme A.
As elevation increases, the number of terrestrial species ________
Fill in the blank(s) with correct word
When nerve impulses pass to the diaphragm, the diaphragm relaxes and exhalation occurs.
Answer the following statement true (T) or false (F)