Final assessment in Nazarbayev Intellectual School of Astana
2012-2013 school year
Biology (9 grade)
1. Appointment of examination workThe main purpose of the examination is to
objectively assess the level of students mastery of knowledge, skills and abilities in
accordance with the requirements of biology pre-Diploma programme.
2. Document defining the content of the examination tasks ispresent biology
programme AEO "Nazarbayev Intellectual School of Astana"
IBO, Diploma programme Guide, Biology, First examination 2009
Complete Biology for Cambridge IGCSE (Second Edition) Authors Pickering, R., Oxford
University Press, 2010
3. The structure of the final examination:
Final examination consists of three parts: Paper1, Paper2, Paper3.
4. Determination of Papers content and technological matrix:
Technological matrix summary for graduates of secondary school
Paper 1. (45 min) 30 multiple-choice questions on the biology core.
Paper 1 is made up of multiple-choice questions that test knowledge of the 9 grade
students. The questions are designed to be short, one- or two-stage problems that address
objectives 1 and 2 ( see the “Objectives” section of Biology Guide 2009/ IB DP). No marks are
deducted for incorrect responses. Calculators are not permitted, but students are expected to
carry out simple calculations.
Paper 2 (1.15 hour)
Paper 2 tests knowledge of the 9 grade students. The questions address objectives 1, 2
and 3 and the paper is divided into two sections.
In section A, there is a data-based question that requires students to analyse a given set
of data. The remainder of section A is made up of short-answer questions.
In section B, students are required to answer one question from a choice of three. These
extended-response questions may involve writing a number of paragraphs, solving a substantial
problem, or carrying out a substantial piece of analysis or evaluation. A calculator is required for
this paper.
Paper 3 (1 hour)
Paper 3 tests knowledge of the options and addresses objectives 1, 2 and 3. Students
answer several short-answer questions. A calculator is required for this paper.
Final assessment in Nazarbayev Intellectual School of Astana
2012-2013 school year
Biology (9 grade)
Paper1
1.
What is essential for diffusion?
A.
A concentration gradient
B.
A selectively permeable membrane
C.
A source of energy
D.
A protein
2.
In the diagram below macromolecules are being transported to the exterior of a cell.
(Total 1 mark)
What is the name of this process?
A.
Exocytosis
B.
Pinocytosis
C.
Endocytosis
D.
Phagocytosis
(Total 1 mark)
3.
Which combination of features is found in most plant and animal cells?
A.
Plasma membrane, lysosome, Golgi apparatus
B.
Cytoplasm, mitochondria, ribosomes
C.
Rough ER, nucleus, centrioles
D.
Plastids, cytoplasm, nucleus
4.
Which organelles have a transport function?
A.
Ribosome and Golgi apparatus
B.
Golgi apparatus and endoplasmic reticulum
C.
Mitochondrion and endoplasmic reticulum
D.
Mitochondrion and ribosome
5.
What are organelles?
A.
Small structures in the cytoplasm of a cell that all have more than one function.
B.
Membrane-bound structures found near the nucleus of all cells.
C.
Discrete structures found inside all cells that have specific functions.
D.
Specialized cells inside an organ that have one function.
6.
In which part of the digestive system is most water re-absorbed?
A.
The kidneys
B.
The stomach
C.
The small intestine
D.
The large intestine
7.
Identify the atoms and ions from the table below.
Atoms
Ions
+
+
–
A.
H
Na
OH
B.
Fe
K
CH3COO–
C.
Fe
H2O
Ca2+
(Total 1 mark)
(Total 1 mark)
(Total 1 mark)
(Total 1 mark)
D.
Na
C
I–
Cl–
H2O
N3 –
NO3 –
(Total 1 mark)
8.
Which molecule represents ribose?
A.
H
C
C
O
H
OH H
OH C
C
H
C.
B.
CH 2 OH
OH
HC
OH
H 2C
H
H
C
H
O
C
C
H
N
OH
H
OH
H 2C
O
D.
H
O
HOH 2 C
OH
H
C
C
H
H
H
C
C
OH
OH
OH
(Total 1 mark)
9.
Which of the following reactions occurs when a dipeptide is formed from amino acids?
A.
Hydrolysis
B.
Denaturation
C.
Condensation
D.
Oxidation
10.
What is the composition of the backbone of DNA?
A.
Alternating sugar and phosphate molecules
B.
Complementary base pairs
C.
Alternating sugar and base molecules
D.
A polysaccharide
11.
Which of the following are connected by a hydrogen bond?
A.
The hydrogen and oxygen atoms of a water molecule
B.
A base pair of a DNA molecule
C.
Two amino acid molecules of a dipeptide
D.
Two glucose molecules in a disaccharide
12.
Which enzyme removes the RNA primer during replication?
A.
RNA primase
B.
DNA polymerase I
C.
DNA ligase
D.
Helicase
13.
Which phases of mitosis are shown in diagrams I and II?
(Total 1 mark)
(Total 1 mark)
(Total 1 mark)
(Total 1 mark)
I
A.
B.
C.
D.
I
metaphase
metaphase
anaphase
anaphase
II
II
prophase
telophase
prophase
metaphase
(Total 1 mark)
14.
Colchicine is a chemical substance that prevents the formation of microtubules. What stage
of mitosis would be prevented, if dividing cells were treated with colchicine?
A.
Breaking down of the nuclear membrane
B.
Replication of DNA
C.
Separation of genetically identical chromosomes (chromatids)
D.
Supercoiling of chromosomes
15.
Which of the following is correct regarding the enzymes listed in the table?
Enzyme
Amylase
Lipase
Protease
A. Substrate polysaccharide
emulsified fat
dipeptide or polypeptide
B. Substrate emulsified fat
dipeptide or polypeptide polysaccharide
C. Product amino acids
small polysaccharides or fatty acids and glycerol
monosaccharides
D. Product small polysaccharides or amino acids
fatty acids and glycerol
monosaccharides
(Total 1 mark)
(Total 1 mark)
16.
Which is the correct sequence of events when skin is cut and bleeding occurs?
I.
Thrombin is produced
II.
Fibrinogen is converted into fibrin
III. Platelets release clotting factors
A.
I  II  III
B.
I  III  II
C.
III  II  I
D.
III  I  II
17.
What is the role of the internal intercostal muscles during ventilation of the lungs?
A.
Increasing the pressure in the thorax
B.
Increasing the volume in the thorax
C.
Increasing the surface area of the alveoli
D.
Increasing the diameter of the bronchioles
18.
What is the importance of excretion to a living organism?
A.
It prevents waste products from accumulating in the environment around the
organism.
B.
It ensures that recycling of nitrogen continues in the organism’s ecosystem.
C.
It prevents feces from accumulating in the digestive system of the organism.
D.
It ensures that the organism is not poisoned by its own waste products.
19.
How do endocrine glands function when they are involved in homeostasis?
A.
They release hormones directly into the blood system.
B.
They release hormones through ducts to where they are used.
C.
They release digestive enzymes from the pancreas.
D.
They cause positive feedback in the body’s structures.
20.
Which division describes the central nervous system?
A.
Peripheral and central
B.
Voluntary and involuntary nerves
C.
Brain and spinal cord
D.
Sensory and motor nerves
21.
What is the role of ligaments in the elbow joint?
A.
Attach biceps to radius
B.
Reduce friction between humerus, ulna and radius
C.
Hold humerus, ulna and radius in proper alignment
D.
Secrete synovial fluid
(Total 1 mark)
(Total 1 mark)
(Total 1 mark)
(Total 1 mark)
(Total 1 mark)
(Total 1 mark)
22.
What is the outcome for each of the following processes?
Spermatogenesis
Oogenesis
A.
4 gametes
4 gametes
B.
4 gametes
1 gamete and 3 polar bodies
C. 2 gametes and 2 polar bodies
2 gametes and 2 polar bodies
D.
1 gamete and 3 polar bodies
4 gametes
23.
Xerophytes and hydrophytes are adapted to their environments. Which pair of adaptations is
correct?
Xerophytes
Hydrophytes
A.
Air spaces in roots
Water storage in roots
B.
No stomata
No stomata
C.
Stomata in pits
Thin or no cuticle
D.
Thick cuticle
Stomata in pits
24.
Which is an adaptation of hydrophytes?
A.
Water storage tissue
B.
Shallow but widely spreading roots
C.
Reduced thickness of cuticle
D.
Large numbers of stomata in the lower epidermis
25.
What causes movement of water through the xylem?
A.
Active transport in the root tissue
B.
Evaporation of water from leaves
C.
Active translocation
D.
Gravity
(Total 1 mark)
(Total 1 mark)
(Total 1 mark)
(Total 1 mark)
26. Which group of organisms has a hard exoskeleton, jointed limbs and segmented body?
A. Insects
B. Annelids
C. Arthropods
d. Molluscs
(Total 1 mark)
27. Which of following organism is not vertebrate animal?
A. Fish
B. Reptile
C. Bird
D. Arthropods
28. How do single-celled yeasts reproduce?
A. by binary fission
B. by spores
C. by budding
D. all variants are right
(Total 1 mark)
29. What kind of shape do cocci have?
A. spherical
B. rod-shaped
C. spirilli
D. do not have constant shape
(Total 1 mark)
30.
What are the main sources of carbon dioxide on earth?
A.
Cellular respiration of consumers, producers and combustion of fossil fuels
B.
Photosynthesis and cellular respiration of consumers
C.
Cellular respiration of producers and combustion of fossil fuels
D.
Photosynthesis and combustion of fossil fuels
(Total 1 mark)
Paper 2
Section A: answer all questions
1.
The electron micrographs below show mitochondria in longitudinal section. The
mitochondrion in A is from a bat pancreas cell and that in B is from a mouse liver cell.
A.
B.
[Source: Tribe and Whittaker, Chloroplasts and Mitochondria, (1972), 31, pp 28–29]
(a)
Annotate the micrographs to show two similarities in the structure of the
mitochondria.
(2)
(b)
The mitochondria differ in size. State two other differences that are visible in the
mitochondria.
1.
..........................................................................................................................
2.
..........................................................................................................................
(2)
(c)
Predict, with two reasons, which of the mitochondria would have been able to produce
ATP at a greater rate.
....................................................................................................................................
....................................................................................................................................
....................................................................................................................................
....................................................................................................................................
....................................................................................................................................
(3)
(Total 7 marks)
2.
Dieticians studied the effect of dieting in obese adults. They found that although many of the
adults lost body mass when they were prescribed low energy diets, they regained body mass
once the diet was relaxed.
The dieticians wanted to test the hypothesis that during overfeeding, a relatively high
percentage of dietary energy eaten as protein limits the amount of body mass gained.
148 obese adults were selected. They were first given a very low energy diet for one month
to achieve at least 4 kg loss in body mass.
After the first month, the adults were allowed to return to their normal diet but half of them
were given 48.2 g of additional protein per day. The body mass of each adult was measured
over the following three months. The results are shown below.
86
Body mass / kg
Key:
84
Normal diet with
additional protein
82
Normal diet without
additional protein
80
78
76
74
0
1
2
3
4
Time / months
[Source: Reprinted with permission from Macmillan Publishers Ltd: M S Westerterp-Plantenga et al., “High
protein sustains weight maintenance after body weight loss in humans”, International Journal of Obesity (Jan
2004), vol. 28, issue 1, pp. 57–64, © 2004]
(a)
Identify two nutrients that are sources of dietary energy apart from protein.
...................................................................................................................................
...................................................................................................................................
(2)
(b)
Compare the changes in body mass for both groups when normal diet is resumed.
...................................................................................................................................
...................................................................................................................................
...................................................................................................................................
...................................................................................................................................
(3)
(Total 5 marks)
3.
Plants that grow in the desert have many adaptations that enable them to cope with full
sunlight and low water availability, such as thicker leaves with reduced surface area.
Researchers have also observed that leaf pubescence (presence of white leaf surface hairs)
may be another adaptation to dry environments. A study was done to evaluate the effects of
leaf pubescence on two species of Californian plants, Encelia farinosa, a desert species with
pubescent leaves and Encelia californica, a native of the moist coast with non-pubescent
leaves.
The graph below shows the absorption spectrum of intact leaves of both species in the
photosynthetically active spectrum between the wavelengths 400 nm (blue light) and 800 nm
(red light) of light.
100
Key:
90
E. californica
80
E. farinosa
70
60
Absorption 50
/%
40
30
20
10
0
400
450
Blue
500
550
Green
600
650
Yellow
700
Orange
750
800
Red
Wavelength / nm
[Source: From J. Ehleringer et al., “Leaf Pubescence: Effects on Absorptance and Photosynthesis in a Desert Shrub”, Science (23
April 1976), vol. 192, issue 4237, pp. 376-377. Reprinted with permission from AAAS]
(a)
Calculate the difference in absorption between E. farinosa and E. californica at 600
nm.
....................................................................................................................................
....................................................................................................................................
(2)
(b)
Suggest a possible explanation for the decrease in absorption at 550 nm for E.
californica.
....................................................................................................................................
....................................................................................................................................
(3)
(Total 5 marks)
Section B: answer one question
1.
Outline locomotion in each of the following:

swimming in a bony fish;

flying in a bird.
(Total 5 marks)
2.
Draw a diagram of the human digestive system.
(Total 5 marks)
3.
Outline the process of endocytosis.
(Total 5 marks)
Paper 3
Answer all questions
Theme: Nerves
1.
Annotate the diagram of the human brain to label the parts shown.
[Source: Glenn and Susan Toole, (1995) Understanding Biology for Advanced Level,
Third edition, Page 539, Stanley Thornes]
(Total 3 marks)
2.
(a)
Discuss speed as a measure of fitness.
.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
(2)
(b)
(i)
State the type of neuron that carries an impulse to a muscle.
...........................................................................................................................
(1)
(ii)
Explain how contraction of a muscle is controlled.
...........................................................................................................................
...........................................................................................................................
...........................................................................................................................
...........................................................................................................................
...........................................................................................................................
(4)
(Total 7 marks)
Theme: Photosynthesis
1.
During photosynthesis in plants, light energy is absorbed by chlorophyll. This energy is then
used to carry out photolysis, which supply substances that are needed to convert carbon
dioxide into organic molecules such as glucose.
(a)
State the names of two products of photolysis in photosynthesis.
1. .................................................................................................................................
2. .................................................................................................................................
(2)
(b)
Explain briefly one method for measuring the rate of photosynthesis in a plant.
.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
(2)
(c)
The rate of photosynthesis is affected by light intensity. Draw a line on the graph
below to show the relationship between light intensity and the rate of photosynthesis.
rate of photosynthesis
light intensity
(2)
(d)
State two factors in the environment of a plant, apart from light intensity, that can
affect the rate of photosynthesis in the plant.
1. .................................................................................................................................
2. .................................................................................................................................
(2)
(Total 8 marks)
Final assessment in Nazarbayev Intellectual School of Astana
2012-2013 school year
Biology (9 grade)
Markscheme / Paper1
1.
A
[1]
2.
A
[1]
3.
B
4.
B
5.
C
6.
D
7.
D
8.
D
9.
C
[1]
[1]
[1]
[1]
[1]
[1]
[1]
10.
A
[1]
11.
B
[1]
12.
B
[1]
13.
C
14.
C
15.
A
16.
D
17.
A
18.
D
19.
A
[1]
[1]
[1]
[1]
[1]
[1]
[1]
20.
C
[1]
21.
C
[1]
22.
B
[1]
23.
C
24.
C
[1]
[1]
25.
B
26.
A
27.
D
28.
A
29.
A
[1]
[1]
[1]
[1]
[1]
30.
A
[1]
Paper 2
Markscheme
Section A:
1.
(a)
(b)
(c)
both have two (outer) membranes;
both have cristae;
both have a matrix (with a grainy appearance) / ribosomes;
2 max
shape;
arrangement of cristae;
density of cristae;
amount of matrix granules / any reference to dark dots;
(do not accept ribosomes)
2 max
A / bat’s;
larger size / volume;
greater surface area of cristae / more cristae;
closeness of mitochondria in B mouse reduces rate;
3 max
[7]
2.
(a)
(b)
fats / lipids and carbohydrates / sugars
Need both to receive the mark.
2 max
both rise (from one to four months);
those with added protein rise more slowly / those without the extra protein
rise more quickly / difference increases;
those with no added protein always higher;
there is not a lot of difference / no significant difference between them;
3 max
[5]
3.
(a)
82%  29% = 53(1)%; (units required)
2 max
(b)
550 nm is in the green region of the spectra and plants do not absorb
green light as well as other wavelengths;
550 nm / green light is the light reflected by the pigments of the plant;
3 max
[5]
Section B:
1.
Answers must refer to both fish and birds for full marks, if not award [2 max].
locomotion is movement from one place to another;
muscles provide force for movement;
fish contract muscles to move their tails / side to side movement;
side to side tail movement pushes fish forwards;
fins are used for steering;
flying birds contract / use muscles to flap wings / move wings up and down;
downward wing movements generate lift;
air flow over fixed wings creates lift;
[5]
2.
Award [1] for every two of the following structures clearly drawn and labelled correctly.
mouth;
esophagus;
stomach;
small intestine;
large intestine / colon;
anus;
rectum;
sphincters;
salivary glands;
liver;
pancreas;
gall bladder;
3.
(Annotated diagram illustrating the process may be used to gain
some or all the marks.)
the mechanism whereby cells take in solids and / or solutions;
involves the formation of vesicles;
infolding of cell membrane;
called phagocytosis when solids / organisms are engulfed;
phagocytosis is called feeding in some unicellular organisms;
called pinocytosis when solutions are taken in
(vesicles are much smaller);
may be receptor-mediated (eg HIV);
requires energy / active process;
[4]
[5]
Paper 3
Theme: Nerves
1.
I.
II.
III.
hypothalamus (accept ventricle);
cerebellum;
medulla (oblongata);
[3]
2.
(a)
(b)
rate of quickness of movement of limb / fitter then faster you run;
not a complete measure as other factors not included;
eg flexibility / stamina / agility / strength;
2 max
(i)
motor (neuron)
1
(ii)
controlled by the cerebral cortex;
motor areas of the cerebral cortex each control one muscle;
impulse transmitted over synapse to muscle fibre;
muscle fibres contract when impulse / stimulus received;
propioreceptors / cells detect how stretched the muscle is;
feedback to brain; by sensory neurons;
4 max
[7]
Theme: Photosynthesis
1.
(a) oxygen;
hydrogen / reduced NADP (NADPH) / H+ / protons;
ATP;
(b)
(c)
(d)
2 max
measure oxygen production over a fixed period of time / rate;
collect bubbles of oxygen (from water plant);
or
measure carbon dioxide uptake over a fixed period of time / rate;
measure (colour) change of pH indicator / other method over a fixed
period of time / rate;
or
measure increase in biomass / height / leaf size etc over a fixed period of time / rate;
harvest replicate samples at time intervals for biomass determination;
2 max
straight line increase;
followed by a plateau at high light intensities;
2
temperature;
carbon dioxide concentration;
water / humidity;
2
[8]
Markscheme
Paper 1
30 questions, 1 point for each question. Total 30 points.
Points
%
NISA
0
1-6
0
20
7-9
30
10-12
40
3
13-15
50
4
16-18
60
19-21
70
National
Grade
Grade
1
1
2
2
5
22-24
80
6
25-30
85-100
7
3
4
5
Paper 2
Section A: one data-based question (7 points) and two short-answer
questions (each 5 points) all compulsory
Section B: one extended-response question on the core (5 points) from a
choice of three
Total Section A and B is 22 points.
Points
%
0
1-4
0
20
5-6
30
NISA
National
Grade
Grade
1
1
2
2
7-8
40
3
9-10
50
4
11-13
60
14-15
70
16-17
80
6
18-22
85-100
7
5
3
4
5
Paper 3
Two short-answer questions: first question 7 points and second question 8
points. Total 15 points.
Points
%
NISA
National
Grade
Grade
0
0
1-2
3-4
5-6
7-8
9
11
12
13-15
20
30
1
1
2
2
40
3
50
4
60
3
5
70
80
6
85-100
7
4
5
Final mark for 9 grade (Exam and Year mark)
Type of work
Weight
Paper 1
20%
Paper 2
32%
Paper 3
24%
Year mark
24%
Total
100%
Sample
Type of work
Mark
Weight
Paper 1
4
4*0,20=0.8
Paper 2
5
5*0,32=1.6
Paper 3
3
3*0,24=0.72
Year mark
4
4*0,24=0.96
National mark
4.08