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Biological molecules
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Created by
Lex Bell
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Cards (12)
What are
monomers
?
a
small
repeating
unit
that makes up
polymers
what are 2 differences between
cellulose
and
glycogen
molecules?
cellulose is made of
b glucose
whereas glycogen is made of
a glucose
.
cellulose is
straight chained
whereas glycogen is
branched
.
What makes
starch
a good
storage molecule
?
insoluble
-
doesn’t
affect
water
potential
branched
- makes molecule
compact
test for
starch
?
iodine
/
potassium iodide
test
components of
triglycerides
?
glycerol
,
fatty acids
type of bond between fatty acids and glycerol?
ester bond
What test is for lipids?
ethanol test
Shake
sample with
ethanol
then
water.
If solution is
milky
lipids are
present.
Describe
how a
peptide
bond
is formed between
2
amino
acids
to form a di peptide.
A
condensation
reaction occurs
The
reaction
occurs between
amine
and
carboxyl
group
Describe how the structure of a
polypeptide
is produced by bonds between
amino acids
.
Hydrogen
bonds form
beta pleated sheets
or
alpha helixes
Two proteins have the same number and type of amino acids but different tertiary structures
explain why.
they
have a
different
primary structure
they form
disulfide bridges
in
different
places
Describe how the formation of a
enzyme
substrate
complex increases rate of reaction.
Reduced
activation energy
due to bonds bending
other than being disaccharides what is a similarity and difference between
lactulose
and
lactose
?
they both contain a
glycosidic bond
lactulose contains
galactose
and lactose contains
glucose