1. Small charged molecules, often biogenic amines function as
A. hormones
B. neurotransmitters
C. both (a) and (b)
D. none of these
ADVERTISEMENT
2. SH2 domains specifically bind to
A. phosphorylated serine residues
B. phosphorylated tyrosine residues
C. GDP
D. Ca2+
ADVERTISEMENT
3. In paracrine signaling, the signaling molecules affects only
A. target cells close to the cell from which it was secreted
B. target cells distant from its site of synthesis in cells of an endocrine organ
C. both (a) and (b)
D. none of the above
ADVERTISEMENT
4. Simple nerve reflexes use signaling molecules called
A. neurotransmitters
B. nitric oxides
C. G proteins
D. proteases
ADVERTISEMENT
5. Which of the following is not a type of signaling molecule?
A. Testosterone
B. Insulin
C. Thyroxin
D. Adenylate cyclase
ADVERTISEMENT
< PREVIOUS POSTEnvironment, Ecology & Biodiversity
NEXT POST >DNA Structure and Replication - Section 1