13 –
tion B
3–
Further practice on 6.4 and 6.5:
From Biology Course Companion:
– 13 –
M19/4/BIOLO/HP2/ENG/TZ1/XX
Section B
Answer two questions. Up to one additional mark is available for the construction of your answers for
each question. Answers must be written within the answer boxes provided.
5.
(a)
Outline the functions of rough endoplasmic
apparatus.
[3]
N16/4/BIOLO/HP2/ENG/TZ0/XX
– 13 – reticulum and Golgi
(b)
Outline the control of metabolism by end-product inhibition.
(c)
Explain how hydrophobic and hydrophilic properties contribute to the arrangement of
Section B
– 13 –
[5]
N16/4/BIOLO/HP2/ENG/TZ0/XX
Answer two questions.
Upintoaone
additional mark is available for the construction of your answers for[7]
molecules
membrane.
each M19/4/BIOLO/HP2/ENG/TZ1/XX
question. Write your answers in the boxes provided.
Section B
6.
– 13 –
N18/4/BIOLO/HP2/ENG/TZ0/XX
The
circulatory
systemofisinspiration
structuredintohumans.
serve the organs and tissues of the body
6. human
(a) Outline
the process
[4]
Answer two questions. Up to one additional mark is available for the construction of your answers for
efficiently.
each (b)
question.
Write
your answers
in
the
N16/4/BIOLO/HP2/ENG/TZ0/XX
Section
Bprovided.
Describe
the functions
of valves
in
theboxes
mammalian
heart.
[4]
(a) Explainofhow
circulation
of the
blood to the lungs and to other systems is separated in
available for the construction
your
answers
forconcentrations
(c)
how
solute
are kept
within
narrow
limitsand
inofthe
human
body.
[7]
The Explain
humanUp
circulatory
system
is structured
to for
serve
organs
tissues
of
theforbody
Answer6.two humans
questions.
toblood
one
additional
mark
is available
the the
construction
your
answers
and what
the advantages
of this
separation
are.
[8]
answer
on B boxes provided.
efficiently.
each question.
Answers must be written within the answer boxes provided.
7. apparatus.
(a) Outline
thehappens
roles of helicase
and
ligase
in DNAby
replication.
[4]
(b)
Describe
what
infor
alveoli.
[4]
available
for the
answers
mic
reticulum
and
Golgi
[3]
6. construction
(a)
Calcium
isyour
absorbed
food
in
the
human
active
passive
processes.
(a) of
Explain
how from
circulation
of
the
bloodgut
to theboth
lungs
andand
to other
systems
is separated in
Outline active transport, including the benefits of the process.
[3]
vided.
humans
what
the advantages
of this separation are.
(b) Explain
howand
natural
selection
can lead to speciation.
[7]
(c)
Distinguish
between
the
composition
of
the
blood
of
the
renal
artery
and
the
blood
of
13
–
N18/4/BIOLO/HP2/ENG/TZ0/XX
d-product inhibition.
[5]
the
vein.
[3]
(b)tissues
Describe
the
rolefeatures
of oxygen
in aerobic cell
[5]
(c) renal
Outline
the
of ecosystems
that respiration.
make them sustainable.
[4]
serve the organs and
of
the
body
(b) Describe what happens in alveoli.
6.
ction
properties
B contribute to the arrangement of
(c) Adult humans may absorb more[7]
than five hundred litres of oxygen per day.
7.
Angiospermophyta
areexchange
vascular
flowering
plants.
(c) Distinguish
between
the composition
the blood
of thesystem.
renal artery and the blood
Explain
how gas
is maintained
in the of
human
respiratory
[7] of
available
the construction
of your
for
eislungs
and for
to other
systems isthe
separated
in
renal answers
vein.
eseparation
answer boxes
are. provided.
[8] compounds in vascular plants.
(a) Describe the transport of organic
[4]
mans.
[4]
7.
(a) Isolated communities in rural Finland, Hungary and some of the Scottish islands
uman gut by both active
and
passive
a high incidence
of red-green
colour
the inheritance
7. have
Angiospermophyta
are
vascular
flowering
(b)
The
flowers
of processes.
angiospermophyta
usedblindness.
forplants.
sexual Describe
reproduction.
Outline of
[4] are
mammalian
heart.
[4]
red-green
colour
blindness.
[3]
three
processes
required
for
successful
reproduction
of
angiospermophyta.
[3]
enefits of the process.
[3]
(a)andDescribe
theoftransport of organic compounds in vascular plants.
blood
the renal
artery
the
blood
(b)
Outline
causes
of variation
in
example of DNA.
continuous
variation
in humans.
(c)
Growth
in
living
organisms
Explain
DNA replication.
sheare
keptofwithin
narrow
limits
inthe
the
human
body.includes
[7]onereplication
cell respiration.
[3][5]
(c)
(b)
The flowers of angiospermophyta are used for sexual reproduction. Outline
three processes required for successful reproduction of angiospermophyta.
Explain how evolution occurs and which factors can cause the process to be rapid.
[5]
[8]
[7]
[8]
[4]
[3]
[4]
[3]