Blood rich in oxygen is what color?
a. yellow
b. pink
c. bright red
d. blue
e. purple
C
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If all available enzyme molecules are binding substrate and converting it to product as rapidly as possible, the reaction is said to be proceeding at ________ velocity.
A. terminal B. infinite C. optimal D. maximal
What does the glottis connect?
What will be an ideal response?
The cell cycle is controlled in most cells by
A) a series of checkpoints. B) time-after a certain length of time the cell divides. C) the completion of one phase which triggers the beginning of the next. D) cell size, when the cell reaches a certain size, it divides. E) different cells exhibit different control strategies, any of the 4 above can be found in eukaryotic organisms.
Which of the following is FALSE when comparing RNA and DNA?
A. Both have a 5' end and a 3' end. B. Both contain nucleotides connected by phosphodiester linkages. C. Both contain phosphate groups. D. Both are composed of nucleotides that contain sugars. E. Both are composed of purines and pyrimidines. F. Both are composed of identical nucleotides. G. Both are composed of nucleotides that contain a phosphate group, a pentose sugar, and a nitrogenous base.