The major function of cAMP in animal cells is to activate
a. adenylyl cyclase.
b. protein kinase A.
c. protein kinase C.
d. tyrosine kinases.
Ans: b. protein kinase A.
You might also like to view...
The reason the light reactions have both cyclic and noncyclic electron pathways is
a. because the light-independent reactions require ATP and NADPH in different amounts than are generated by noncyclic electron flow. b. to ensure that ATP and NAPDH are generated in a 1:1 molar ratio. c. because only the combination of pathways can generate sufficient NADPH for the lightindependent reactions. d. to provide more electrons from water than would be released by the noncyclic pathway. e. because a single photon of light can't energize a ground state electron in photosystem II to the level necessary for transfer to photosystem I's primary electron acceptor.
Upon fertilization, the egg and sperm fuse to form a single cell called a(n) ________
A) zygote B) gamete C) embryo D) gonad
Which of the following generally makes skeletal muscle different from both smooth and cardiac muscle?
A) Skeletal muscles are made of cells called "fibers." B) Skeletal muscle cannot be contracted voluntarily. C) Skeletal muscle can be contracted voluntarily. D) Skeletal muscle cells have nuclei.
Which is not the terminology used for resident flora?
A. Normal flora B. Normal microflora C. Indigenous flora D. Pathogenic flora E. All of these choices are correct.