2/15/25, 5:32 AM AS Level Biology A H020/02 Depth in biology (2025) comprehensive questions and verified answers ( detailed & elaborated) A…
AS Level Biology A H020/02 Depth in biology
(2025) comprehensive questions and verified
answers ( detailed & elaborated) ACTUAL EXAM
2025 TEST!!
Save
Terms in this set (19)
(a) Fig. 1.1 shows the U- amine group
general structure of an V- carboxyl group
amino acid
State the names of the
groups labelled U and V
Fig. 1.2 shows a Name of bond W- peptide bond
representation of a short Type of reaction- condensation reaction
polypeptide chain made
from three amino acids
Name bond W and state
what type of reaction
takes place to form this
bond.
https://quizlet.com/1006163322/as-level-biology-a-h02002-depth-in-biology-2025-comprehensive-questions-and-verified-answers-detailed-elabora… 1/7
, 2/15/25, 5:32 AM AS Level Biology A H020/02 Depth in biology (2025) comprehensive questions and verified answers ( detailed & elaborated) A…
Pepsin is a protease DNA, copied to mRNA
enzyme with a DNA, is too large to leave nucleus
polypeptide chain
containing 327 amino
acids.
Titin is the largest known
protein. It has a
polypeptide chain
containing at least 92
times more amino acids
than pepsin.
(i) DNA sequences in
genes code for
polypeptide molecules
such as pepsin and titin.
Explain why a process
known as transcription is
necessary for
polypeptide synthesis
Calculate the minimum 327 x 92 x 3= 90,252
length of the DNA base
sequence required to
code for titin. Show your
working
https://quizlet.com/1006163322/as-level-biology-a-h02002-depth-in-biology-2025-comprehensive-questions-and-verified-answers-detailed-elabora… 2/7
AS Level Biology A H020/02 Depth in biology
(2025) comprehensive questions and verified
answers ( detailed & elaborated) ACTUAL EXAM
2025 TEST!!
Save
Terms in this set (19)
(a) Fig. 1.1 shows the U- amine group
general structure of an V- carboxyl group
amino acid
State the names of the
groups labelled U and V
Fig. 1.2 shows a Name of bond W- peptide bond
representation of a short Type of reaction- condensation reaction
polypeptide chain made
from three amino acids
Name bond W and state
what type of reaction
takes place to form this
bond.
https://quizlet.com/1006163322/as-level-biology-a-h02002-depth-in-biology-2025-comprehensive-questions-and-verified-answers-detailed-elabora… 1/7
, 2/15/25, 5:32 AM AS Level Biology A H020/02 Depth in biology (2025) comprehensive questions and verified answers ( detailed & elaborated) A…
Pepsin is a protease DNA, copied to mRNA
enzyme with a DNA, is too large to leave nucleus
polypeptide chain
containing 327 amino
acids.
Titin is the largest known
protein. It has a
polypeptide chain
containing at least 92
times more amino acids
than pepsin.
(i) DNA sequences in
genes code for
polypeptide molecules
such as pepsin and titin.
Explain why a process
known as transcription is
necessary for
polypeptide synthesis
Calculate the minimum 327 x 92 x 3= 90,252
length of the DNA base
sequence required to
code for titin. Show your
working
https://quizlet.com/1006163322/as-level-biology-a-h02002-depth-in-biology-2025-comprehensive-questions-and-verified-answers-detailed-elabora… 2/7
