OCR AS Biology Unit 2

Q cards on everything on the spec for  OCR Biology Unit 2, some of them are kind of jumbled around but they are colour coded,
purple-classification
pink-conservation
brightish blue-speciciation, variation, evolution
brown-biodiversity
yellow-health and disease
orange-DNA genes etc
redish-food and health
pale blue/purple- biological molecules
green- enzymes

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Describe how hydrogen bonding occurs in water Properties and roles of water
S ol
v ent
me taboli
c processe s r
ely
o n
chemica l
s
I
n the
w ater
mo lecul
e i
n a sol
u t
ion.
(blood ,
xylem,
p hl
oem)
t…

Page 2

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Secondary Structure Haemoglobin
heli
x Q uaternary
struct
ure
pleated
s hee t
4
polypeptide
u ni
ts,
t
w o
,
two
S pecial
is
e d part
of
each pol
ypepti
de i
s t
h e
haem
F or
me d
w hen amino aci
ds
coi…

Page 3

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Differences between alpha and beta glucose How structures of starch (amylose), glycogen and

cellulose relate to their functions in organisms
A l
ph a
g l
ucose has
­O H
group below on S t
arch i
n solu bl
e,
so doe s
no t
a f
fect
.…

Page 4

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Chemical test for lipids Describe how the concentration of a glucose
solution may be determined by using colorimetry
A d d
eth ano l
t
o
ex t
ract
(
dissol
ve)
l
ipi
d and D o
B enedict
's
test
f
ir
st.
po u r
alcoh o…

Page 5

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Outline the roles of RNA in organisms State what an enzyme is
RNA differs from DNA in that the molecule is a singlestranded
polynucleotide and is other shorter than DNA. RNA contains the G l
o bul
a r
prot
e i
ns general
ly
solubl
e i
n wat…

Page 6

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Describe how the effects of pH, temp, E conc. , S Explain the effects of competitive inhibitors
conc. can be investigated experimentally
Definition:
mo l
ecular
sh ape i
s si
mi l
ar to
sub str
a te,
so
fit
s i
nto act
ive
sit
e,
slow ing…

Page 7

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Define the term balanced diet Explain how consumption of an unbalanced diet
A ba l
ance d i
e t
is o ne t
h at
co nta ins
all
t
he can lead to malnutrition
nutri
en t
s r
eq u i
r ed f
or
h e…

Page 8

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Outline how selective breeding is used to Describe how the use of fertilisers and pesticides
produce domestic animals with high productivity with plants can increase food production
B reeders
cho ose
the f
eature
th at
they
w i
s h
to Organic fertilisers are the wastes of animals and…

Page 9

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Describe causes and means of transmission of Describe causes and means of transmission of
AIDS/HIV TB

C ause
vir
us
hu man i
mmu nodefi
ci
en cy
virus C ause
Bacteri
um mycob acter
ium
tubercul
osis,
mycobacter
iu m bovi
s
Ma in
me t
ho ds
of…

Page 10

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Describe the structure of antibodies Describe the mode of action of antibodies with
Yshaped, with two distinct regions reference to neutralisation and agglutination of
Four polypeptide chains held together by disulphide pathogens
bridges
A constant region, which is the same in all
N eutr
ali
sation
antibod i
es
cov…

Comments

Kanwal

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Wow your notes are actually incredible! Quick question, how are they layed out? As in are they colour coordinated? Or do they just follow from one another vertically/horizontally?

Much appreciated x

Bethany Cunningham

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I think they are coordinated into spec points; I thought they were great!

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