Kerala SSLC Biology Model Question Papers with Answers Paper 2

Kerala SSLC Biology Model Question Papers with Answers Paper 2 are part of Kerala SSLC Biology Previous Year Question Papers with Answers. Here we have given Kerala SSLC Biology Model Question Papers with Answers Paper 2.

Kerala SSLC Biology Model Question Papers with Answers Paper 2 Free Download English Medium

Time Allowed: 1 1/2 Hours
Maximum Marks: 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. Answer only on the basis of instructions and questions given.
3. Consider score and time while answering.

Answer any five from questions 1 to 6. Each question carries 1 score. 5 x 1 = 5

Question 1:
The pairs given below represent the name of an organism and the name of a receptor identify the correctly matched pairs.
i. Shark – lateral line
ii. Snake – ommatidia
iii. House fly – jacobson’s organ

Question 2:
Make word paurs from the word given in box as gland- Harmone.

Question 3:
Select the correct statement regarding hearing.
a. Controlled by vestibular apparatus of internal ear.
b. Vibrations created by sound waves generate impulses.
c. Body movements generate impulses.
d. Sensory hair cells present in basilar membrane act as receptors.

Question 4:
Correct the word underlined in the given statements if there is any mistake.
a. Deficiency of vitamin A cause glaucoma.
b. The pigment that gives dark colour to the choroid layer is aqueous fluid.
c. Rhodonsin is a pigment present in the rod cells.

Question 5:
Observe the illustration given below

Name the gland indicated as (i) and hormone indicated as (ii).

Question 6:
Identify the word pair relationship and fill the blanks.
a. Darwin – theory of Evolution
b. DeVries ____

Answer any 6 questions from Qn. No. 7 to 13. Each question carry 2 score. 6 x 2 =12

Question 7:
Indications are given about an eye disorder:
a. Aged people are affected
b. Gradual loss of power of vision
i. Identify this disorder
ii. What is the reason for this disorder?

Question 8:
Complete the illustration

Question 9:
The N.S.S unit of your school along with Regional Cancer Centre is organising a Free Medical Camp for the Early Diagnosis of Cancer
a. What is Cancer ?
b. Early diagnosis of Cancer is crucial in the treatment of cancer, Comment.

Question 10:
Observe the diagram given below and answer the question.

a. What does this diagram represent?
b. What do the arrows in this diagram indicate?

Question 11:
Complete the illustration with the indicators

1. Anopheles
2. Plasmodium
3. Man

Question 12:
Gopal feels thirsty and there is a variation in the blood glucose level
a. Identify this disease
b. Why does this disease cause excessive thirst?

Question 13:
Given below are the various steps in the maintenance of body equilibrium. Arrange them in the correct order.
a. Generate impulses
b. Cerebellum co-ordinates the muscular activities for maintenance of body balance.
c. Body movements create the movement of fluid inside the vestibule and semicircular canals
d. Vestibular nerve transmits the impulses to cerebellum
e. Moves the sensory hair cells

Answer any 5 Questions from Qn.No. 14 to 20. Each Question carries 3 score. 5 x 3 = 15

Question 14:
Rearrange columns B and C according to the column A.

Question 15:
Analyse the illustration and answer the questions given below:

a. Identify the process and define it.
b. Identify X and explain its role in the process.

Question 16:
The level of glucose in blood is maintained by the combined action of insulin and glucagon. The graph below shows three conditions of glucose level in blood.

a. Which condition shows the normal level of glucose in blood?
b. Which among the two hormones function in condition B and explain its action?
c. What is the role of insulin in liver and muscles?

Question 17:
The characteristics of diseases in two individuals are given below.

a. Identify the disease in the individuals X and Y .
b. Which is the communicable disease among the two ? Which are the mechanisms by which the disease spread from one person to another.

Question 18:
Observe the given diagram and answer the questions given below.

a. Identify the parts X, Y, Z.
b. Name the ear ossicles that amplify their vibrations of the tympanic membran transmit it to the inner ear ?

Question 19:
Doctor suggested to test the platelet count of Rahul, who had persistent fever.
a. To confirm which diseases, did the doctor put forward this suggestion ?
b. How does this diseases affect the platelet count ?

Question 20:
Complete the illustration given below

Answer any 2 Questions from Q.No. 21 to 23. Each question carries 4 score. 2 x 4 = 8

Question 21:
DNA does not participate directly in protein synthesis. Illustrate the process of protein synthesis with the help of flow chart given below:

Question 22:
Given below are certain communicable diseases.

a. Identify the diseases that are caused by fungi.
b. Why does the lymph ducts in the legs get swollen in persons infected with Filariasis?
c. Being responsible citizen .suggest two measures to prevent the spread of communicable diseases.

Question 23:
Draw the figure, and answer the questions given below.

a. Label the following parts in the figure:
i. Cerebrum
ii. Thalamus
iii. Cerebellum
b. Write one function of each part.

Answers

Answer 1:
i

Answer 2:
Thyroid gland – Calcitonin
Hypothalamus – Oxytocin

Answer 3:
b, d.

Answer 4:
a. Night blindness
b. Melanin
c. No error

Answer 5:
i. Pancreas
ii. Glucogon

Answer 6:
Mutation theory

Answer 7:
i. Cataract
ii. Lens of the eye become opaque.

Answer 8:
a. Fungus
b. Athletes foot
c. Round Red blisters
d. Touch/ contact

Answer 9:
a. Cancer is caused by the uncontrollable division of cells and their spread to other tissues.
b. It is difficult for patients to recover if the disease become severe.

Answer 10:
a. The figure shows, one end of each semicircular canal that is widened to form an ampulla, which consists of cupula sensory cells that can detect the movement of head in any direction.
b. The arrows indicate the movement of capula is contract with the movement of direction of the head.

Answer 11:
a. Plasmodium
b. Anopheles (female)
c. Man

Answer 12:
a. diabetes
b. In diabetic patients, more urine is produced to excrete the excess glucose. To compensate for the water loss, diabetic patients feel very thirsty.

Answer 13:
c. Body movements rotate the fluid inside the vestibule and semicircular canals.
e. Movement of the sensory hair cells.
a. Generates impulses.
d. impulses are transmitted to cerebellum by vestibular nerves.
b. The arrows indicate the movement of capula is contract with the move ments that maintain the equilibrium of the body.

Answer 14:

Answer 15:
a. Phagocytosis: The process of engulfing and destroying germs is called phagocytosis.
b. Lysosome: The enzyme in the Lysosome destroys the pathogens.

Answer 16:
a. Condition A
b. Glucagon: Converts glycogen in the liver to glucose. Synthesize glucose from amino acids.
c. Converts glucose into glycogen in the liver and muscles.

Answer 17:
a. X – Squint
Y – ‘Conjunctivities / Red eye.

b. Here, conjunctivities is the communicable disease. It is due to the infection of the conjunctiva. Bacteria, virus etc are the pathogens/causative organisms. This disease is traomtitted through contact and can be prevented by maintaining personal hygiene.

Answer 18:
a. X- Tympanum
Y – Oval window
Z- Eustachian tube
b. Malleus, incus, stapes.

Answer 19:
a. Dengue fever.
b. Dengue virus prevents the formation of platelets from the bone marrow. In such situations, there is a considerable decrease in platelet count. Hence by testing the platelet count, the presence of dengue virus can be confirmed.

Answer 20:

Answer 21:
i. mRNA reaches outside the nucleus
ii. mRNA reaches ribosomes
iii. Different kinds of amino acids reach ribosomes
iv. Based on the information in mRNA protein is synthesized adding aminoacids.

Answer 22:
a. Athletes Foot, Ringworm
b. The filarial worms infects the lymph ducts and block the flow of lymph throughout the body. Hence the lymph ducts in the legs gets swollen in per¬sons with filariasis.
c. Keep your home and surroundings clean.
Avoid the stagnation of water.
Observe dry day.

Answer 23:

b. Cerebrum: It is the centre of thought, intelligence memory and imagination.
Thalamus: Acts as relay station of impulses to and from the cerebrum. Cerebellum Coordinates muscular activities and maintains equilibrium of the body.

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