What would be the valence number of electrons in the sulfur (S) atom? Its atomic number is 16.
A. 6
B. 8
C. 2
D. 32
E. 16
Answer: A
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The binding of a ligand to its GPCR receptor
A. results in the release of GTP form G? in exchange for GDP B. results in the association of G? and GBY C. results a change in the conformation of the GPCR D. all of the above
In vertebrates, the central nervous system (CNS) consists of the ____
a. brain and spinal cord b. brain and gray matter c. spinal cord and gray matter d. brain and reflexes e. spinal cord and nerves
The letter "A" in the above figure represents
a. keratin-filled, dead epithelial cells. b. replicating epithelium. c. mucus produced by underlying ciliated cells. d. white blood cells attacking a bacterial cell. e. all of these
Assuming one glucose molecule being metabolized, what is the net yield of ATP in the cytoplasm under aerobic
conditions? a. 1 b. 2 c. 32 d. 34 e. 36