What molecule must be added to the media for a strain of bacteria auxotrophic for alanine to grow?
A) Alanine
B) Tryptophan
C) Hisitidine
D) Biotin
A) Alanine
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Cholesterol
a. has a rigid backbone of four carbon rings. b. is the most common steroid in animal tissue. c. is a lipid without a fatty-acid component. d. is needed to produce sexual development and maturity. e. is all of these.
In an organism's binomial scientific name, the first of the two names is the
A) order. B) genus. C) species. D) family.
Graft rejection can be treated by preventing T cell responses with (azithroprine/cyclophosphamide/cyclosporine).
Fill in the blank(s) with the appropriate word(s).
Intermediates in the breakdown of ____ can be
diverted into glycolysis and the Krebs cycle. a. carbohydrates b. lipids c. proteins d. all of these e. carbohydrates and lipids only