AQA A-Level Biology paper 1 Question
Paper + Mark scheme [MERGED] June
2022
activation energy -
✔✔ANSWER✔✔minimum energy
required for a reaction to start
active site - ✔✔ANSWER✔✔a region on
enzymes that binds to a substrate during
a reaction
,allosteric site - ✔✔ANSWER✔✔specific
receptor site on an enzyme remote from
the active site
amine group - ✔✔ANSWER✔✔-NH2
amino acid - ✔✔ANSWER✔✔monomer
of proteins
amino acid structure -
✔✔ANSWER✔✔central carbon atom,
hydrogen atom, variable (R) group,
carboxyl group (COOH) and amine group
(NH2)
anabolism - ✔✔ANSWER✔✔metabolic
pathway that construct molecules,
requiring energy
, anti-parallel -
✔✔ANSWER✔✔complementary and
parallel but running in opposite
directions
ATP - ✔✔ANSWER✔✔adenosine
triphosphate
universal energy currency
ATP in aerobic respiration -
✔✔ANSWER✔✔released as free energy
with 30 molecules per glucose
bases in DNA -
✔✔ANSWER✔✔A(adenine), T(thymine),
C(cytosine), G(guanine)
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