Protein kinase A regulates glycogen metabolism by _______ glycogen synthase and _______ glycogen phosphorylase.
a. activating; activating
b. inactivating; inactivating
c. activating; inactivating
d. inactivating; activating
Ans: d. inactivating; activating
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An adult cell that is reprogrammed to be pluripotent is called a(n):
A. embryonic stem cell. B. induced pluripotent stem cell. C. germ layer pluripotent stem cell. D. pluripotent stem cell. E. regenerative pluripotent stem cell.
For anaphase to begin, which of the following must occur?
A) Chromatids must lose their kinetochores. B) Cohesin must attach the sister chromatids to each other. C) Cohesin must be cleaved enzymatically. D) Kinetochores must attach to the metaphase plate. E) Spindle microtubules must begin to depolymerize.
In an attempt to become more environmentally conscious, a woman changes her lifestyle
She begins to grow the majority of her own food in her yard without using pesticides or synthetic fertilizers, she walks rather than taking the car for trips shorter than 5 kilometers, and she uses solar and wind for her power. By taking these actions, she is A) increasing her intake of bioaccumulated compounds. B) increasing her nitrogen cycling. C) increasing her greenhouse gas output. D) decreasing her carbon footprint. E) increasing the number of endocrine disruptors to which she is exposed.
A(n) __________ consists of hardened parts at the body surface.
Fill in the blank(s) with the appropriate word(s).