Nucleic acids: key terms Flashcards
1
Q
a heterotroph is…
A
an organism that derives its energy from food
2
Q
a chemoautotroph is…
A
an organism that derives its energy from oxidation
3
Q
a photoautotroph is…
A
an organism that derives its energy from light
4
Q
phosphorylation is…
A
the addition of an inorganic phosphate ion
5
Q
an endergonic reaction is one that…
A
requires an energy input; it stores energy
6
Q
an exergonic reaction is one that…
A
releases energy
7
Q
DNA is a degenerate code because…
A
all amino acids except methionine have more than one triplet
8
Q
DNA is an unambiguous code because…
A
each triplet only codes for one amino acid
9
Q
DNA is a universal code because…
A
in all organisms each triplet codes for the same single amino acid
10
Q
DNA is a non-overlapping code because…
A
each triplet is read separately
