The basic categories of hormones are peptide or proteins, steroids, and aminoacid derivatives. The chemical properties of each hormone type determine someof its functional properties and how it must interact with receptors to signal to the cell.Is it likely that a small, hydrophilic hormone can cross the cell membrane?
A. Yes
B. No
Answer: B
You might also like to view...
Which phase comes immediately after gastrulation?
a. fertilization b. organ formation c. cleavage d. gamete formation e. tissue specialization
Which is a general equation that summarizes the light-dependent reactions?
A. excited electrons + H2O + ADP + NADP+ ® ATP + NADPH + O2 B. ATP + NADPH + ribulose + CO2 ® ADP + NADP+ + complex organic molecule + ribulose C. CO2 + ATP + NADH + 5-ribulose ® glyceraldehyde-3-phosphate + NADP+ + ADP + P D. SUN + 6CO2 ® 6H2O + C6H12O6 + 6O2
While the maximum number of electrons required to fill the outermost shell of an atom varies depending on the size of the atom, almost all of the smaller atoms (atomic numbers 2-20) are considered stable, and thus nonreactive, when they contain ________ electron(s) in the outermost shell.
A. 1 B. 8 C. 16 D. 2
In radishes, red and white are the pure-breeding
colors, and long and round are the pure-breeding shapes, while the hybrids are purple and oval. The cross of a red, long radish and a white, round radish will produce an F1 generation of what phenotype? a. all long, red radishes b. all long, white radishes c. all long, purple radishes d. all round, purple radishes e. none of these