Held in 2015
Paper last updated:
Take this paper as a timed mock test. Review your answers after you submit.
Read the paper at your pace. Open an explanation when you need it.
Rennin and lactase, the enzymes required to digest milk, disappear in the human body by the age of
Two
Three
Five
Eight
Correct answer
Two
Duodenum is situated
At the uppermost part of the small intestine
Near the lungs
In the brain
At the tail end of the intestine
Correct answer
At the uppermost part of the small intestine
The heart is covered by a membrane called
Epidermis
Dermis
Epicardium
Pericardium
Correct answer
Epidermis
About ........ of the total calcium present in the human body is in the blood.
99%
70%
5%
1%
Correct answer
99%
Phenylketonuria is an example of an inborn error of metabolism. This ‘error’ refers to
Hormonal overproduction
Non disjunction
Atrophy of endocrine glands
Inherited lack of an enzyme
Correct answer
Hormonal overproduction
As in the arms and legs, blood flows against gravity and is prevented from flowing back by
The extremely low pressure of venous blood
Valves
Movements in the surrounding muscles
The narrowing down of the lumen of veins by the contraction of the muscle layer comprising their walls
Correct answer
The extremely low pressure of venous blood
Identical twins arise when two
Cells develop independently from the same zygote
Gametes develop independently
Sperms develop independently
Ova develop independently
Correct answer
Cells develop independently from the same zygote
Element that is not found in blood is
Iron
Copper
Chromium
Magnesium
Correct answer
Iron
Scratching eases itching because
It kills germs
It suppresses the production of enzymes which cause itching
It removes the outer dust in the skin
It stimulates certain nerves which direct the brain to increase the production of antihistaminic chemicals
Correct answer
It kills germs
The gland, which in relation to body size is largest at birth and then gradually shrinks after puberty, is
Thyroid
Pituitary
Thymus
Adrenal
Correct answer
Thyroid
A human sperm may contain
X-chromosome
Y-chromosome
XY-chromosome
1 and 2
Correct answer
X-chromosome
Which of the following is not a bone in the legs of human body?
Radius
Tibia
Femur
Fibula
Correct answer
Radius
Bleeding from artery is characterized by which of the following?
Blood is red
Blood is purple
Bleeding is continuous
Bleeding is intermittent
Correct answer
Blood is red
Which of the following is not a vestigial organ?
Centriole
Molar tooth
Appendix
Diaphragm
Correct answer
Centriole
Which of the following bone articulations forms the gliding joint?
Humerus and radius
Carpals
Hip girdle and femur
Skull & neck vertebrae
Correct answer
Humerus and radius
Pancreas secretes hormones which help in
Blood clotting
Production of antibodies
Growth of body
Keeping sugar balance in body
Correct answer
Blood clotting
S-A node of the mammalian heart is known as
Autoregulator
Pace-maker
Time controller
Beat regulator
Correct answer
Autoregulator
Consider the following statements regarding blood pressure:
Choose the correct statements.
1, 2 and 3 are correct
1 and 4 are correct
2, 3 and 4 are correct
1, 2, 3 and 4 are correct
Correct answer
1, 2 and 3 are correct
The hormone responsible for the secretion of milk in mothers is
ACTH
Leutinizing hormone
Adrenalin
Lactogenic hormone
Correct answer
ACTH
What is the correct sequence of the following in heart attack?
Narrowing of the inner orifice of the vessel
Plaque from fibrous tissue and high cholesterol
Inadequate supply of blood and oxygen
Clots of blood carried into the coronary arteries
1 → 2 → 3 → 4
2 → 4 → 1 → 3
2 → 1 → 4 → 3
3 → 1 → 4 → 2
Correct answer
1 → 2 → 3 → 4
Bile juice is secreted by
Pancreas
Liver
Spleen
Gall bladder
Correct answer
Pancreas
Veins differ from arteries in having
Thinner walls
Strong walls
Narrower lumen
Valves to control direction of flow
Correct answer
Thinner walls
What is the main function of insulin in the human body?
To maintain blood pressure
To help in digestion of food
To control the level of sugar in the body
To check the level of iodine in the body
Correct answer
To maintain blood pressure
An enzyme that works in an acidic medium is
Pepsin
Trypsin
Ptyalin
Maltose
Correct answer
Pepsin
The blood pressure is the pressure of blood in
Arteries
Veins
Auricles
Ventricles
Correct answer
Arteries
The total number of bones in the human skull is
8
12
29
32
Correct answer
8
Which of the following glands controls the development of sex organs in humans?
Pancreas
Thyroid
Adrenal
Pituitary
Correct answer
Pancreas
Oxygen is transported to every cell of the human body by
Red blood cells
Blood platelets
White blood cells
Hormones
Correct answer
Red blood cells
Which of the following components of blood protects human beings from infection?
Plasma
Blood Platelets
Haemoglobin
White Blood Corpuscles
Correct answer
Plasma
The normal temperature of the human body is
90 F
98 F
98.4 F
96.4 F
Correct answer
90 F
If a person can see an object clearly when it is placed at a distance of about 25 cm away from him, he is suffering from
Myopia
Hypermetropia
Astigmatism
None of these
Correct answer
Myopia
The blood pressure values of four persons are given below: Mrs. X - 90/60, Mr. X - 160/120, Mr. Y - 120/80, Mrs. Y - 140/100. Who among the following has normal blood pressure?
Mrs. Y
Mr. X
Mrs. X
Mr. Y
Correct answer
Mrs. Y
In the case of a ‘Test-tube baby’?
Fertilisation takes place inside the test tube
Development of the baby takes place inside the test tube
Fertilisation takes place outside the mother body
Unfertilised egg develops inside the test tube
Correct answer
Fertilisation takes place inside the test tube
Pituitary gland is present
Below the brain
Above the brain
Inside the brain
Nowhere near the brain
Correct answer
Below the brain
Which of the following organs is used in the purification of blood in the human body?
Liver
Kidney
Spleen
Lungs
Correct answer
Liver
Cornea is a part of which of the following organs of the human body?
Eye
Ear
Nose
Heart
Correct answer
Eye
What is Funny Bone?
A muscle
A nerve
A bone
A blood vessel
Correct answer
A muscle
Man cannot digest cellulose whereas cows can do so because
Their gut contains bacteria capable of digesting cellulose
They have a many-chambered stomach
They have efficient grinding molars
They produce an enzyme cellulase which can digest cellulose
Correct answer
Their gut contains bacteria capable of digesting cellulose
Which of the following when taken by pregnant women, is found to be the cause of deformed children?
Glycerol
Xylidine
Thalidomide
None of these
Correct answer
Glycerol
The diploid number of chromosomes in the human body is
24
30
46
48
Correct answer
24
The largest cell in the human body is
Nerve cell
Muscle cell
Liver cell
Kidney cell
Correct answer
Nerve cell
Lichens are formed due to the symbiotic association of
Moss and fungi
Bacteria and fungi
Algae and fungi
None of these
Correct answer
Moss and fungi
Insects form the largest class of animals living on land and sea. They are grouped into
22 orders
26 orders
29 orders
32 orders
Correct answer
22 orders
Which of the following statements is true for planktons?
They live on the surface of lake water
They live on the bottom of lakes
They live on the plants growing in water
They live in the water column
Correct answer
They live on the surface of lake water
Which of the following has the smallest egg?
Ostrich
Humming bird
Pigeon
Homo sapiens
Correct answer
Ostrich
The population of which of the following is maximum on the earth?
Reptiles
Fishes
Birds
Beetles
Correct answer
Reptiles
Poison glands of snakes are homologous to
Stings of rays
Salivary glands of vertebrates
Electric organs of fishes
Sebaceous glands of mammals
Correct answer
Stings of rays
The phylum chordata is characterised by the presence of
Spinal cord
Notochord
Nerve chord
None of these
Correct answer
Spinal cord
Which of the following activities is suppressed by the presence of auxins in plants?
Growth of lateral buds
Cell division
Root initiation
Development of fleshy fruits
Correct answer
Growth of lateral buds
50 questions in the full paper