Some transport processes use transport proteins in the plasma membrane, but do not require ATP. This type of transport is known as _____.
a. facilitated diffusion
b. active transport
c. simple diffusion
d. endocytosis
e. exocytosis
Ans: a. facilitated diffusion
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A. Nonsense mutations B. Up-promoter mutations C. Intergenic suppressors D. TNRE mutations E. None of the answers are correct
Telomere integrity in cancer cells is the result of
A) natural cell aging. B) active telomerase activity. C) exchange of DNA between chromosomes. D) viral infection. E) both choices B and C
What are the two major methods of cellular division in eukaryotic cells?
a. fission and cloning b. mitosis and cloning c. meiosis and fission d. meiosis and mitosis e. meiosis and cloning
The White Cliffs of Dover, England, were formed over millions of years by the accumulation of calcium carbonate shells from ________
Fill in the blank(s) with correct word