Science Biology Biochemistry
AS Level Biology A H020/02 Depth in biology Monday
4 June 2018 - Afternoon
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A-Level Biology - OCR Biology AS Level Questions Proteins and e
251 terms 34 terms 12 terms
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Terms in this set (19)
(a) Fig. 1.1 shows the general U- amine group
structure of an amino acid V- carboxyl group
State the names of the groups
labelled U and V
Fig. 1.2 shows a representation Name of bond W- peptide bond
of a short polypeptide chain Type of reaction- condensation reaction
made from three amino acids
Name bond W and state what
type of reaction takes place
to form this bond.
, Pepsin is a protease enzyme DNA, copied to mRNA
with a polypeptide chain DNA, is too large to leave nucleus
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 length 327 x 92 x 3= 90,252
of the DNA base sequence
required to code for titin.
Show your working
AS Level Biology A H020/02 Depth in biology Monday
4 June 2018 - Afternoon
Leave the first rating
Save
Students also studied
Flashcard sets Study guides
A-Level Biology - OCR Biology AS Level Questions Proteins and e
251 terms 34 terms 12 terms
MariamSaiady Preview Hu08sen Preview flo_ladbury
Terms in this set (19)
(a) Fig. 1.1 shows the general U- amine group
structure of an amino acid V- carboxyl group
State the names of the groups
labelled U and V
Fig. 1.2 shows a representation Name of bond W- peptide bond
of a short polypeptide chain Type of reaction- condensation reaction
made from three amino acids
Name bond W and state what
type of reaction takes place
to form this bond.
, Pepsin is a protease enzyme DNA, copied to mRNA
with a polypeptide chain DNA, is too large to leave nucleus
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 length 327 x 92 x 3= 90,252
of the DNA base sequence
required to code for titin.
Show your working
