5090 s13 QP 11
5090 s13 QP 11
5090 s13 QP 11
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5090/11
BIOLOGY
Paper 1 Multiple Choice
May/June 2013
1 hour
Additional Materials:
*0623043534*
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1
chloroplast
key
= present
= absent
An experiment measured the rate at which plants take up magnesium ions from solution. One
plant was given a poison that stops respiration. Another plant was left as normal. The graph
shows the results.
plant left as normal
rate of uptake
of magnesium
ions
N
P
concentration of magnesium
ions in the solution
How are the magnesium ions being absorbed by the plants at points N and P?
point N
point P
active transport
active transport
active transport
diffusion
diffusion
active transport
diffusion
diffusion
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4
A
D
C
6
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7
A green leaf is picked at time 07.00 and immediately placed in a sealed test-tube containing
hydrogen carbonate indicator solution. The tube is kept near a window for 24 hours. The table
shows how the indicator changes in colour.
leaf
hydrogen carbonate
indicator
colour
purple
red
normal
yellow
Which colour will the hydrogen carbonate indicator be at times 12.00 and 24.00?
at 12.00
at 24.00
purple
yellow
red
purple
yellow
purple
yellow
red
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5
8
test
reagent
positive result
starch
iodine
blue-black
reducing sugars
Benedicts
orange
protein
biuret
purple
fats
ethanol
milky white
test
reagent
positive result
starch
biuret
blue-black
reducing sugars
Benedicts
orange
protein
iodine
purple
fats
ethanol
milky white
test
reagent
positive result
starch
iodine
blue-black
reducing sugars
Benedicts
purple
protein
biuret
milky white
fats
ethanol
orange
test
reagent
positive result
starch
biuret
blue-black
reducing sugars
Benedicts
purple
protein
iodine
milky white
fats
ethanol
orange
What are the basic units from which molecules of glycogen and of protein are synthesised?
basic units of
glycogen
basic units of
protein
glucose
amino acids
glucose
fatty acids
glycerol
amino acids
glycerol
fatty acids
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10 The table shows where different components of food are digested in the alimentary canal.
Which option states where protein is digested?
mouth
(buccal)
cavity
stomach
duodenum
ileum
key
= substance is digested
12 In an experiment to investigate the transport of water, the roots of a plant are placed in water
coloured with a dye.
The diagrams show sections of the leaf, stem and root.
leaf
stem
root
3
6
2
Which numbered parts will become stained by the dye as the water is initially absorbed?
leaf
stem
root
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13 After muscular exercise, which blood vessel carries the lowest concentration of carbon dioxide?
A
hepatic vein
pulmonary artery
pulmonary vein
vena cava
14 The diagram shows the pressures in the left side of the heart during one heart beat.
20
pressure
/ kPa
key
10
left ventricle
aorta
left atrium
0
0
0.2
0.4
0.6
0.8
X
time / s
Which valves are open and which are closed at the time marked X?
bicuspid
semi-lunar
closed
closed
closed
open
open
closed
open
open
15 Two hours after eating a meal, which vessel contains blood with the highest concentration of
glucose?
A
aorta
pulmonary vein
renal vein
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16 Which equation for anaerobic respiration in yeast is correct?
A
17 What happens to the diaphragm muscles and to the internal and external intercostal muscles
when a person breathes out during exercise?
diaphragm
external intercostal
muscles
internal intercostal
muscles
contracts
contract
relax
contracts
relax
contract
relaxes
contract
relax
relaxes
relax
contract
18 The graph shows changes in the amount of air in a persons lungs over a period of 30 seconds.
5
4
lung
volume
/ dm3
3
2
1
0
0
30
time / s
V to W
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X to Y
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Y to Z
9
19 In the human breathing system, which features maintain the carbon dioxide gradient between the
alveoli and the outside air?
1 and 2
1 and 4
2 and 3
3 and 4
An injury to body tissue activates platelets in the blood and these activated platelets release
chemicals which activate more platelets.
During the menstrual cycle, luteinising hormone stimulates the release of oestrogen which in
turn stimulates the release of more luteinising hormone.
The onset of contractions during childbirth causes the release of a hormone which stimulates
further contractions.
When blood pressure is high, nerve impulses from the brain cause the blood vessels to dilate
and blood pressure is reduced.
21 The graph shows changes in blood glucose concentration when a body responds to an external
stimulus.
blood glucose
concentration
0
0
10
20
30
40
50
60
70
80
90 100
What is the hormone responsible for the change in blood glucose concentration in the first 30
minutes?
A
adrenaline
fibrinogen
glycogen
insulin
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22 The graph shows the changes in the size of the pupil of the eye as the light intensity of the
surroundings is changed.
12
10
8
diameter of
pupil / mm
6
4
2
0
0
10
15
20
25
30
35
40
45
50
time / seconds
5 to 10 seconds
10 to 25 seconds
25 to 35 seconds
35 to 40 seconds
hormone produced
target organ
effect
adrenal
adrenaline
heart
decreases
heart rate
ovary
oestrogen
uterus
increases
thickness of lining
pancreas
insulin
liver
converts glycogen
to glucose
pituitary
FSH
uterus
causes ovulation
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24 The diagram shows a section through the lower arm of a human.
muscles
skin
fat
bone Y
bone X
humerus
radius
humerus
ulna
radius
humerus
radius
ulna
liver damage
key
= effect occurs
26 During the production of yoghurt and cheese, the pH of the mixture changes.
What causes this change in pH?
A
production of ethanol
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27 During the production of alcohol, why must air be kept out of the fermenter?
A
sunlight
Which number represents an organism that eats both plants and animals?
A
29 A tree has insect larvae burrowing in its leaves. The emerging insects are eaten by birds and the
birds have parasitic fleas living amongst their feathers.
Which is a pyramid of biomass and which is a pyramid of numbers for this food chain?
pyramid of
mass
pyramid of
numbers
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13
30 The diagram shows part of the nitrogen cycle.
nitrogen compounds
in plants
nitrogen compounds
in animals
nitrates
ammonium compounds
P, Q, R and S
P and S only
Q and R only
R and S only
31 Which factor does not help to make the mosquito an effective vector of malaria?
A
soil eroded
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33 The graph shows changes in the dry mass of a seed as it germinates.
dry mass
T
S
0
0
5
time / days
10
osmosis
photosynthesis
respiration
transpiration
haploid
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35 Where does the placenta allow the exchange of materials to take place between mother and
fetus?
A
oviduct wall
umbilical cord
uterus wall
vagina wall
cell Y
meiosis
cell Z
(sperm cell)
cell Z
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37 The genotype for the height of an organism is written as Tt.
What conclusion may be drawn?
A
There are at least two different alleles of the gene for height.
There are two different genes for height, each having a single allele.
38 In a large family, half the children were blood group A and half were blood group B.
If the father was blood group O, what was the mothers blood group?
A
AB
39 How many chromosomes are there in a zygote which develops into a baby with Downs
syndrome?
A
23
24
46
47
It is common practice to mate bulls with cows that produce the most milk.
It is possible to control caterpillars on food crops by releasing small wasps which lay their
eggs in caterpillars and kill them.
Permission to reproduce items where third-party owned material protected by copyright is included has been sought and cleared where possible. Every
reasonable effort has been made by the publisher (UCLES) to trace copyright holders, but if any items requiring clearance have unwittingly been included, the
publisher will be pleased to make amends at the earliest possible opportunity.
University of Cambridge International Examinations is part of the Cambridge Assessment Group. Cambridge Assessment is the brand name of University of
Cambridge Local Examinations Syndicate (UCLES), which is itself a department of the University of Cambridge.
UCLES 2013
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