A cell from a wheat plant contains all of the following EXCEPT a
A) flagellum.
B) cell wall.
C) cytoskeleton.
D) chloroplast.
E) mitochondrion.
A
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All of the following are directly used as alternative substrates for glycolysis except
A) galactose. B) mannose. C) ribose. D) fructose. E) both choices A and C
The degeneracy of the genetic code refers to the fact that
a. the code has some codons that do not specify an amino acid. b. the code has most amino acids represented by more than one codon. c. the code varies considerably between different organisms. d. the code is commaless, with no indicators of spaces between codons. e. the code varies considerably between different cell types within a multicellular organism.
The_______ is liquid that bathes the body's cells.
A. interstitial fluid B. external water C. plasma D. bile E. urine
Hydrophobic as well as hydrophilic interactions would be important for which of the following types of molecules?
A. Proteins B. Unsaturated fats C. Glycogen and cellulose D. Polynucleotides E. All of the above