What are cytoskeletal elements assembled from?
a. proteins
b. triglycerides
c. phospholipids
d. glycogen
Ans: a. proteins
You might also like to view...
Parenchyma, collenchyma, and sclerenchyma are all types of cells derived from
A. procambium tissue. B. ground tissue. C. vascular cambium tissue. D. cork cambium tissue. E. epidermal tissue.
All cells in an embryo have the same genes, but they express different subsets of this genome. Selective gene expression is the basis of:
a. cleavage b. cell differentiation c. fertilization d. gamete formation e. organ maturation
In many freshwater systems, the limiting factor for
algal growth is a. oxygen. b. carbon dioxide. c. nitrogen. d. phosphorus. e. calcium.
A mother, father, and son live together in the same house. The mother passes a cold to her son. The son then passes the cold to his father. If the virus has not mutated, should the mother be worried about catching the cold again from her husband?
A) No, memory cells will help the mother's immune system to quickly eliminate the virus. B) Yes, although the mother has produced some antibodies to the cold virus, it can still overwhelm her immune system. C) No, the T cells that are left from the previous infection can kill off any virus. D) Yes, the immune system will treat the cold virus like a new infectious agent.