Pages in this set

Page 1

Preview of page 1
Uni
t
O ne:
Topi
c 2
­ Genes
and
H eal
th [BIOLOGY REVISION NOTES]




BIOLOGY AS REVISION NOTES
TOPIC 1: UNIT 2

SNAB specification
Made by Nabilah Chowdhury

Copyrighted

References: Various internet sources, sources from GetRevising, SNAB text book




{CIS 1.1} THE LUNGS
17/11/13
1
|
Page
Ai…

Page 2

Preview of page 2
Uni
t
O ne:
Topi
c 2
­ Genes
and
H eal
th [BIOLOGY REVISION NOTES]




Goblet
cel
ls
­ pr
odu ces
thi
n l
ayer
of
mu cus
Epi
thel
ial
cel
ls
­ l
ine
the wal
ls
of
the
tubes
Ci
li
a ­
hair
li…

Page 3

Preview of page 3
Uni
t
O ne:
Topi
c 2
­ Genes
and
H eal
th [BIOLOGY REVISION NOTES]




SURFACE AREA TO VOLUME



e.
g.

D: Tot
al
SA :

(8
x 1)
x
4 s
ides
= 32
(1
x 1)
x
2 s
ides
= 2
32
+ 2
=34

Vol…

Page 4

Preview of page 4
Uni
t
O ne:
Topi
c 2
­ Genes
and
H eal
th [BIOLOGY REVISION NOTES]


2
x 4
x 1
= 8

Tot
al
SA /
V:
28
/
8 =
2.5


Conclusion's drawn from results

Smal
l
organi
sms
have
incr
eased
SA
to
V r
ati
o…

Page 5

Preview of page 5
Uni
t
O ne:
Topi
c 2
­ Genes
and
H eal
th [BIOLOGY REVISION NOTES]


CF
people
are
usual
ly
short
of
br
eath
b/c
of
inef
fi
ci
ent
gas
exc
h ange
not
r
ecei
vi
ng
enough
oxygen
t
hus
they
rel
y on
anaer
o…

Page 6

Preview of page 6
Uni
t
O ne:
Topi
c 2
­ Genes
and
H eal
th [BIOLOGY REVISION NOTES]


Par
all
el
chai
ns
for
m hydr
ogen
bonds
bet
w een
them,
whi
ch
hol
ds
them
toget
her
i
n "
sheet
s".




TERTIARY STRUCTURE

Pol
ypept
ide
chai
ns
fol…

Page 7

Preview of page 7
Uni
t
O ne:
Topi
c 2
­ Genes
and
H eal
th [BIOLOGY REVISION NOTES]




SUMMARY OF STAGES









More Proteins:



Prot
eins
that
i
ncorporat
e nonpepti
de mo l
ecul
es
in
thei
r
overal
l
str
uctur
e,
eit
h er
bond ed coval
entl
y or…

Page 8

Preview of page 8
Uni
t
O ne:
Topi
c 2
­ Genes
and
H eal
th [BIOLOGY REVISION NOTES]



Glycopr
otei
n's,
i
ncor
porat
ing
polysacchar
ide
prost
heti
c gr
oups
(e.
g.
col
lagen
and
mucus)
.
Li
poprotei
ns,
i
ncorpor
ati
ng l
i
p i
d pr…

Page 9

Preview of page 9
Uni
t
O ne:
Topi
c 2
­ Genes
and
H eal
th [BIOLOGY REVISION NOTES]



Cell Membrane structure
{CIS 20}
Li
pid
= 3
fatt
y aci
ds +
glycer
o l
Phospholi
pids
= 2
fat
ty aci
ds +
neg at
ive
phosphate
group
2
layer
s…

Page 10

Preview of page 10
Uni
t
O ne:
Topi
c 2
­ Genes
and
H eal
th [BIOLOGY REVISION NOTES]


Darker
edges
shoul
d be
phosphat
e heads because
they
are
mo re
elect
ron
dense
Li
ghter
i
nside
shoul
d be
fat
ty
aci
d t
ail
s because
they
are
less…

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all resources »