Save
biology paper 2
DNA 3 - Structure & How it Codes
Save
Share
Learn
Content
Leaderboard
Learn
Created by
Habeebah
Visit profile
Cards (11)
DNA consists of
two strands
wrapped
around each other in a
double helix.
DNA is considered to be a
polymer
because it is made up of
multiple
monomers.
What are the monomers of DNA called?
Nucleotides
C
There are four types of bases in DNA. What are their names?
A
-
T
-
C
-
G
Adenine
Thymine
Cytosine
Guanine
What is the part labelled A?
Phosphate
What is the part labelled B?
SUGAR
A
gene
is
section
of
DNA
, with a
particular
sequence
of
bases
, that
codes
for a
protein.
amino
acid
DNA and proteins
The
sequence
of
bases
in
DNA
determines
the
sequence
of
amino
acids
in the
chain.
The
chain
of
amino
acids
(a
'polypeptide'
), then
folds
up to
form
a
protein.
Different
sequences
of amino
acids
lead to
proteins
with
different
shapes.
This
allows
different
proteins
to
carry
out
different
functions.
One
function
of proteins is as to
act
as
enzymes.
What is the role of enzymes?
To
speed
up the
rate
of
chemical
reactions
One of the
uses
of
proteins
is to
carry
messages
around the
body.
What do we call these proteins?
Hormones
