Kerala Class 9 Model Question Paper Biology

Kerala Board

Sample
Papers

ANNUAL EXAMINATION
PRACTICE QUESTION PAPER
BIOLOGY
Time : 1½ hours STD IX Score : 40

Instructions
1. First 15 minutes is given as cool off time. This time is to be used for reading
and understanding the questions.
2. Read the questions and instructions carefully and answer the questions.
3. Keep in mind the score and time while answering the question s.

I. Answer any 5 questions from 1 to 6. One score each. (5X1=5)
1. Analyse the hints and select the correct answer. (1)
Hints :
A. The folding of the touch-me-not plant’s leaves when touched is known as a nastic
movement.
B. Movements of plant parts according to the direction of stimulus are tropic
movements.
C. Growing of climbers towards and around a support is example for Haptotropism.
i) Only A is correct.
ii) A is correct , B and C are incorrect
iii) A, B & C are correct
iv) A is incorrect , B and C are correct
2. Which of the following cannot be detected by ultrasound scanning. (1)
i) Position of placenta
ii) Gestational Diabetes
iii) Genetic abnormalities
iv) Growth of the foetus
3. Identify the one that is correctly arranged in the following table and write it down (1)
A (Phylum) B (Peculiarity) C (Example)

i) Annelida Small, soft and flat bodied worms Crab

ii) Mollusca Segmented bodied organisms Sea Urchin

iii) Platyhelminthes Soft body, in most organisms a shell made of Planaria
calcium carbonate covers the body
iv) Nematoda Long and round bodied worms Hook worm

1

4. Name the process related to the movement of substances illustrated below. (1)
Cocentration of
glucoce is more

Cell membrane

Cytoplasm

Carrier protein

5.Which blood vessel carries blood out of the glomerulus? (1)
• Afferent vessel
• Renal artery
• Renal vein
• Efferent Vessel
6. Identify the blood vessels A and B and choose the correct answer from the
options given below.

i) A – Pulmonary artery , B – pulmonary vein
ii) A – Pulmonary artery , B – superior venacava
iii) A – Inferior venacava , B – Aorta
iv) A – Aorta , B – pulmonary vein
II. Answer any 6 questions from 7 to 13. 2 scores each. (6X2=12)
7. Observe the illustration and answer the questions. (2)

2

(i) Identify the illustration. (1)
(ii) Explain any one of the processes shown in the illustration. (1)
8. Explain the role of the following factors in the health of the skeletal system.
(i) Vitamin D (1)
(ii) Calcium (1)
9. Write the significance of DNA bar coding in classifying organisms. (2)
10. A few contraceptive methods are given. How do they interrupt the process of conception.(2)
(i) Vasectomy
(ii) Diaphragm
11. Different animals and the phyla to which they belong are given below. Make
them pairs as shown in the model. (2)

Coelenterata, Arthropoda,
Echinodermata,
Planaria , Sponges, Hydra,
Platyhelminthes, Porifera,
cockroach , Round worm
Nematoda, Echinodermata

Model
Cockroach : Arthropoda
12. Complete the table below suitably, including the items given in the box. (2)

• Spindle shaped
• Rod shaped
• Striations present
• Seen in stomach

Voluntary muscle Involuntary muscle

• •
• •

13. If the causes of infertility are identified, they can often be resolved with treatment. Evaluate
this statement and prepare a note about the causes of infertility in men and women. (2)
III. Answer any 5 questions from 14 to 20. 3 score each. (5X3=15)

14. Redraw the given diagram and label the following parts.

To redraw (1)

3

i) Part where odontoblast cells are seen (1)
ii) Connective tissue that holds the tooth in the gum (1)
15. Analyse A, B and C and complete the following table. (3)

A B C

Phylum Peculiarity
A
B
C

16. Observe the diagram of the cell organelle and answer the following questions.

i) Write the name of the phase of cellular respiration that takes place in this organelle. (½)
ii) What is the main process that takes place at this phase? (1)

iii) Complete the following illustration representing cellular respiration (1½)

Glucose + .........A.............. Enzymes ...........B..........+ Water+ ………C……….

4

17. Diagram showing the structure of a virus is given below. Analyse it and answer the
following questions.

A

B

i) Write the name of the part labelled as A and B (1)
ii) Why are viruses not included in any of the six kingdom classifications? (2)
18. P , Q , R represents various processes that take place during reproduction in humans. Write
down the name of the processes and explain each process briefly. (3)

Repeated cell division and
embryo development

Q

R

P
19. The following sentences are from the poster that explain the importance of breast milk.
Prepare a note on the importance of breast milk by relating the sentences from the poster? (3)
• "Breast milk - the first vaccine a baby receives"
• "Breast milk - the foundation of a baby's growth and development"
• "The right of a baby, the duty of a mother"

20. The different stages of progressive development of a foetus is given below. Arrange them
suitably and complete the table. (3)
• Growth of hair on the head and the body
• The heart beat begins

5

• Lungs attain complete growth
• Eyelids open, eyelashes are formed
• Sex organs and organ systems are formed
• Gaining of body weight
First trimester Second trimester Third trimester
1 - 3 months 4 - 6 months 7 - 9 months

IV. Answer any 2 questions from 21 to 23. 4 score each. (2X4=8)
21. Complete the table suitably. (4)

Mode of Presence of vascular
Divisions Examples of plants
reproduction tissues
Both sexual and
Algae ............A......... ............B.........
asexual reproduction
Vascular tissues are
Bryophyta ............C......... ............D.........
absent
Vascular tissues with
Pteridophyta ............E......... simple structure are Lycopodium
seen
Reproductive
structures known as
Gymnosperms ............F......... ............G.........
cones are present

Complex vascular
tissues are seen.
Angiosperms ............H......... Xylem Hibiscus
vessels and tracheids
are present

22. Observe the figures of the joints given and answer the questions.

A. ....................... B. .......................

6

A................. B.................

i) Name the type of joints ‘A’ and ‘B’ . (1)
ii) How do A and B differ in their movements ? (1)
iii) Name the disease that causes severe pain and swelling in the joints . How is it caused ?(2)
23. Observe the following illustration and answer the questions .

A

B

C

i) What is the part marked 'A'? How is this part formed? (1)
ii) Write the name and functions of B and C. (2)
iii) How do alcohol consumption, drug abuse and smoking during pregnancy affect the health
of the foetus ? (1)

------X------

7

Answer key
Biology
Qn Sub
Answer/Valuation Points Score Total
No Qn

1 iii) A, B, C are correct 1 1

2 ii) Gestational Diabetes 1 1

3 iv)Nematoda -Long and round bodied worms -Hook worm 1 1

4 Facilitated diffusion 1 1

5 Efferent vessel 1 1

½+
6 i ) A – Pulmonary artery , B – pulmonary vein 1
½
(i) In plants, substances enter the cytoplasm from the
external environment.
(ii)
• Through the cell wall and through extracellular
7 spaces. 2 2
• Through cytoplasmic connections called
plasmodesmata that connect adjacent cells
• From one cell to another through plasma membrane
(any one point )
(i) Vitamin D is necessary for the absorption of calcium
1
which ensure the hardness and strength of bones.
8 (ii) Calcium which ensure the hardness and strength of 2
bones. 1

DNA bar coding is the technology of classifying organisms
by comparing the special molecular sequences (codes) of
DNA. Unlike the traditional methods, it helps to recognize
the species at molecular level. This is made possible by 2 2
9
the creation and sharing of DNA barcodes by the
researchers and laboratories all over the world.

Vasectomy - By cutting or tying the vas deferens, the 1

passage of the sperm is blocked
10 2
Diaphragm - Prevents sperm from reaching the uterus 1

11. Planaria - Platyhelminthes ½x4 2

8

Sponges - Porifera

Hydra - Coelenterata

Round worm - Nematoda

A. Voluntary muscle B. Involuntary muscle

12 • Rod shaped • Spindle shaped ½x4 2

• Striations present • Seen in stomach

a) In men 1

Defects in sperm production, decrease in the number of
sperms and their motility and certain diseases. (any two
points)
13 2
b) In women

Ovulation disorders, blockage in the fallopian tube and 1
hormonal imbalances such as Polycystic Ovary Syndrome
(PCOS) (any two points)

To redraw the diagram 1

14 i) Pulp cavity 1 3

ii) Cementum 1

Phylum Peculiarity

A Annelida Segmented-bodied organisms

B Echinodermata Marine organisms with spiny body
15 ½x6 3
C Mollusca Soft body, in most organisms a
shell made of calcium carbonate
covers the body

i) Krebs cycle ½

16 ii) Pyruvic acid is converted into carbon dioxide and water. 1 3
A- Oxygen B- Carbon dioxide

iii) 1½
C- 30 ATP
17 i) A- Capsid ½ 3
½
B- Genetic material

9

Organisms having the ability to reproduce, respond to the
environment, to grow, and do metabolic activities are
included in the process of classification. Viruses cannot
ii) multiply without the help of a host cell. They are inactive 2
outside any living cell. Due to these unique
characteristics, they are not included in any category of
the current six-kingdom classification

P - Ovulation- relase of ovum from ovary
1
Q - Fertilisation – process of fusion between sperm and
ovum in the oviduct which result the formation of zygote 1 3
R - Implantation- Attachment of blastocyst to the uterine
18 1
layer called endometrium

Colostrum, a light yellow coloured milk produced 1
immediately after giving birth, must be compulsorily fed
to the baby. This will give the baby lifelong immunity.

A baby should be breastfed for at least two years. Breast 1
milk provides the nutrients needed for growth and
cognitive development .
19 3
Breast milk contains antibodies that protect the baby
against infection, diarrhoea, respiratory diseases and
allergies. Breast milk helps to maintain body temperature 1
and to prevent dehydration.

(Any three relevant concepts)

First Trimester (1 - 3 months)

• The heart beat begins. 1
• Sex organs and organ systems are formed
Second trimester (4 - 6 months)
20 • Growth of hair on the head and the body. 1 3

• Eyelids open, eyelashes are formed രൂപപ്പെടുന്നു
Third trimester (7 - 9 months)

• Lungs attain complete growth 1

• Gaining of body weight
21 A - Vascular tissues are absent ½x8 4
B – Spirogyra, Sargassum
C- Reproduction is done through gametes and spores

10

D- Riccia, Funaria
E- Reproduction is mainly through spores
F- Complex vascular tissues are seen, but xylem vessels
are absent
G - Cycas, Pine
H- Reproductive parts are present in the flowers

A . Ball and socket joint
i) 1
B . Hinge joint

A – Allows movement in all sides
ii) 1
22 B – Allows movement in only one side 4

Rheumatoid arthritis.

iii) Due to the destruction of cartilages and synovial 2
membrane by the immune system

i) A Placenta- formed by embryonic and uterine tissues 1
B - Umbilical cord

Function : Oxygen and nutrients reach the body of the
foetus and wastes are removed through this cord
ii) 2
C - Amniotic fluid
23 4
Function : Prevents dehydration of the foetus and protects
it from external shock

Smoking, alcoholism and drug abuse during pregnancy
can cause developmental disorders in the foetus, ectopic 1
pregnancy and miscarriage

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