The kinase central to second messenger signalling based cAMP is
A) protein kinase A.
B) ATPase.
C) Avastin kinase.
D) phosphorylase A.
E) RNase PH.
A) protein kinase A.
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Estrogen is a lipid soluble hormone that can easily cross membranes. Knowing this, what can be concluded about estrogen receptors?
A. The receptors would be coupled to a G-protein. B. The receptors would be linked to enzymes that triggered a kinase cascade. C. The receptors would be found inside the cell. D. The receptors would be on the plasma membrane. E. The receptors would also be lipid soluble and able to cross membranes.
Phosphatase enzymes
A) add phosphate groups. B) always inhibit target molecule activity. C) bind tightly by wrapping around a target molecule to regulate its activity. D) remove phosphate groups. E) metabolize glucose.
Imagine that you discover a microbial deep-sea organism that can derive energy from (inorganic) hydrogen gas (H2). However, this microbe can also synthesize organic compounds from carbon-containing inorganic molecules in the ocean. This microbe is a:
a. phototroph. b. photoautotroph. c. photoheterotroph. d. chemoheterotroph. e. chemoautotroph.
Which part of the nephron contains podocytes?
A. descending limb of loop B. glomerular capsule C. proximal convoluted tubule D. distal convoluted tubule E. ascending limb of loop