1. The organ responsible for balancing the body is
Pons
Cerebrum
Medulla
Cerebellum
(d) The cerebellum is the part of the brain responsible for balance, coordination, and voluntary movements.
2. The number of lumbar vertebrae in human is
7
12
5
4
(c) The human spine has 5 lumbar vertebrae located in the lower back.
3. Primary visual cortex is present in
Frontal
Parietal lobe
Temporal lobe
Occipital lobe
(d) The primary visual cortex, responsible for processing visual information, is located in the occipital lobe of the brain.
4. Which nerve supplies the heart?
Glossopharyngeal
Hypoglossal
Vagus
Trigeminal
(c) The vagus nerve, part of the parasympathetic nervous system, supplies the heart and helps regulate heart rate.
5. Which organelle supplies energy to all the cellular activities?
Lysosomes
Ribosomes
Mitochondria
Peroxisomes
(c) Mitochondria are known as the 'powerhouses of the cell' as they produce ATP, the primary energy currency of the cell.
6. Convert 40°C to °F scale
100.4 °F
104 °F
102.8 °F
108 °F
(b) To convert Celsius to Fahrenheit, use the formula: °F = (°C × 9/5) + 32. So, (40 × 9/5) + 32 = (72) + 32 = 104 °F.
7. Sex establishment occurs during:
Histogenesis
Morphogenesis
Fertilization
Gametogenesis
(c) The sex of an offspring is determined at the time of fertilization when the sperm from the father fertilizes the egg from the mother.
8. The percentage of oxygen in inspired air is:
20%
21%
22%
23%
(b) Inspired air typically contains approximately 21% oxygen.
9. Normal range of systolic BP in young adults
90-130 mm of Hg
100 - 140 mm of Hg
120 - 150 mm of Hg
120 - 160 mm of Hg
(a) The normal range for systolic blood pressure in young adults is generally considered to be between 90 and 130 mm of Hg.
10. The avascular part of the eye is:
[So, it can be transplanted. Keratoplasty.]
Choroid
Retina
Iris
Cornea
(d) The cornea is the avascular (without blood vessels) transparent outer layer of the eye.
11. Mosquito bite transmits all the diseases EXCEPT:
Malaria
Kala-azar
Filariasis
Japanese encephalitis
(b) Kala-azar (Visceral Leishmaniasis) is transmitted by the bite of the sandfly, not a mosquito.
12. Simple enlargement of which gland is called 'goitre'?
Pituitary
Thyriod
Parathyroid
Adrenal
(b) Goitre is the enlargement of the thyroid gland.
13. Which of the following is not tapeworm?
Taenia solium
Echinococcus granulosum
Hymenolepsis nana
Ascaris lumbricoides
(d) Ascaris lumbricoides is a roundworm, not a tapeworm (which belongs to the class Cestoda).
14. What is the other name of TB?
Hydatid disease
Coronary heart disease
Koch's disease
Rheumatic heart disease
(c) Tuberculosis (TB) is also known as Koch's disease, named after Robert Koch who discovered the causative bacterium.
15. The larval stage of T. solium causes a disease called:
Echinococosis
Mycosis
Cysticercosis
Hyadatid disease
(c) The larval stage of Taenia solium (pork tapeworm) causes cysticercosis.
16. The β-cells of pancreas secrete:
Glucagon
Insulin
Somatostatin
Gastrin
(b) The beta (β) cells in the islets of Langerhans of the pancreas secrete the hormone insulin.
17. The pH of the normal blood is:
6.5-7.5
7.35-7.45
7.25-8.35
7.2-8.6
(b) The normal pH range of human blood is slightly alkaline, between 7.35 and 7.45.
18. Which part is affected by viral Encephalitis?
Eyes
Brain
Liver
Lungs
(b) Encephalitis is an inflammation of the brain, often caused by viral infections.
19. A 45 year male is unable to read news paper. Which lens should be used?
Concave
Convex
Spherical
Cylindrical
(b) A 45-year-old male unable to read a newspaper likely has presbyopia (age-related farsightedness) and would require a convex (converging) lens to correct their vision for near objects.
20. All of them are enzyme EXCEPT:
Amylase
Sucrase
Lactase
Cellulose
(d) Amylase, sucrase, and lactase are enzymes that break down carbohydrates. Cellulose is a structural polysaccharide.
21. The normal platelet count of the body is
8,000-10,000 /mm3
1,50,000-4,00,000 /mm3
1,00,000-2,00,000 /mm3
15,000-30,000 /mm3
(b) The normal platelet count in a healthy adult ranges from 150,000 to 400,000 per cubic millimeter (mm3) of blood.
22. Thyroid stimulating Hormone (TSH) is secreted by which gland:
Anterior pituitary
Posterior pituitary
Thyroid
Adrenal
(a) Thyroid-stimulating hormone (TSH) is secreted by the anterior pituitary gland.
23. Malaria is caused by:
Wuchereria
Plasmodium
Rickettsiae
Ancylostoma
(b) Malaria is caused by protozoan parasites of the genus Plasmodium.
24. Which of the following helps in body immunity?
Erythrocytes
Leukocytes
Megakaryocytes
Thrombocytes
(b) Leukocytes (white blood cells) are the cells of the immune system and play a crucial role in body immunity.
25. The ability of atom to attract shared electron pair towards itself is called
Electron affinity
Electronegativity
Ionization potential
Reducing power
(b) Electronegativity is the ability of an atom to attract a shared pair of electrons towards itself in a chemical bond.
26. The amount of H2SO4 present in 500 ml of 2N H2SO4 solution is:
89 grams
49 grams
33.35 grams
24.5 grams
(b) Equivalent mass of H2SO4 = Molar mass / basicity = 98 / 2 = 49 g/equivalent. Amount of H2SO4 = Normality × Equivalent mass × Volume (in liters) = 2 N × 49 g/equivalent × (500/1000) L = 49 grams.
27. The substance possessing both oxidising and reducing properties is
SO2
FeCl3
K2Cr2O7
HCl
(a) Sulfur in SO2 has an oxidation state of +4, which is intermediate between its minimum (-2) and maximum (+6) oxidation states, allowing it to act as both an oxidizing and reducing agent.
28. Anhydrous calcium chloride can be used as
Oxidising agen t
Reducing agent
Dehydrating agen
Bleaching agent
(c) Anhydrous calcium chloride (CaCl2) is hygroscopic and readily absorbs water, making it an effective dehydrating agent.
29. What happens when ZnCl2 is treated with NaOH.
Black ppt is formed
No ppt is formed
White ppt is formed which is soluble in excess of NaOH
White ppt is formed which is insoluble in excess of NaOH
(c) Zinc chloride (ZnCl2) reacts with NaOH to form a white precipitate of zinc hydroxide (Zn(OH)2), which is soluble in excess NaOH forming sodium zincate (Na2[Zn(OH)4]).
30. Phenolphthalein acts as the best indicator in the titration of
NaoH+H2SO4
(COOH)2+NaOH
FeCl3+K2Cr2O7
HCl+NaOH
(b) Phenolphthalein is a good indicator for titrations involving a strong base (like NaOH) and a weak acid (like oxalic acid, (COOH)2), as the equivalence point lies in the basic range where phenolphthalein changes color.
31. The glass used in optical instrument is
Silica
Pyrex
Flint
Soda
(c) Flint glass has a high refractive index and is often used in making lenses and prisms for optical instruments.
32. In the manufacture of Bleaching powder, chlorine is used with
Quick lim
Soda lime
Milk of lime
Slaked lime
(d) Bleaching powder (calcium hypochlorite, CaOCl2) is manufactured by the reaction of chlorine gas with slaked lime (calcium hydroxide, Ca(OH)2).
33. Alum is
Double salt
Mixed salt
Common salt
Potash salt
(a) Alums are double salts having the general formula M+M3+(SO4)2·12H2O.
34. Name the following compound
■(█(CH_3 OH@| | ))H_2 C−CH−CH_2−CH−CH_2 Cl
4,4-dimethyl-1chloro-butanol
1-chloro-4-hydroxy-2-butanol
1-chloro-4-methyl-2-pentanol
1-methyl-4-chloro-4-hexanol
(c) The longest carbon chain containing the chlorine and hydroxyl group has 5 carbons, so it's a pentanol derivative. The chlorine is at position 1, the hydroxyl at position 2, and a methyl group at position 4. Hence, the name is 1-chloro-4-methyl-2-pentanol.
35. Silver nitrate is stored in the laboratory in dark brown or black bottles. This is because
Brown and black glass don’t reach with AgNO3
AgNO3 remains activated in brown or dark bottle.
Light cannot pass through brown or black bottles.
It is easily available.
(c) Silver nitrate (AgNO3) is photosensitive and decomposes in the presence of light. Dark brown or black bottles are used to prevent light from reaching the chemical, thus preventing its decomposition.
36. Organic cyclic compounds possessing the properties of aliphatic compound is
Aromatic
Cyclic
Alicyclic
Homocyclic
(c) Alicyclic compounds are cyclic organic compounds that are not aromatic and have properties similar to aliphatic compounds.
37. PVC is formed by the polymerization of
Allyl chloride
Fluoro ethane
Vinyl chloride
Ethylene
(c) Polyvinyl chloride (PVC) is a synthetic plastic polymer formed by the polymerization of vinyl chloride.
38. The amount of heat required to convert 1 gm of ice at 100°C to steam at 100°C is
[50+80+100+540=770]
766 cal
696 cal
716 cal
736 cal
(d) Heat required to raise temperature of ice from -0°C to 0°C is not mentioned, assuming it starts from 0°C. Heat to melt ice at 0°C = 1 gm × 80 cal/gm = 80 cal. Heat to raise temperature of water from 0°C to 100°C = 1 gm × 1 cal/gm°C × 100°C = 100 cal. Heat to convert water at 100°C to steam at 100°C = 1 gm × 540 cal/gm = 540 cal. Total heat = 80 + 100 + 540 = 720 cal. There might be a slight difference depending on the initial temperature of ice. If ice is at -100°C, then heat required = 1 * 0.5 * 100 + 80 + 100 + 540 = 50 + 80 + 100 + 540 = 770 cal. Given the option and the note, let's consider the path: Ice at 0 -> Water at 0 (80 cal) -> Water at 100 (100 cal) -> Steam at 100 (540 cal). Total = 80 + 100 + 540 = 720 cal. The closest option is 736 cal. Let's consider if ice was at a lower temperature initially as per the note in another question which implies 50 cal for ice. So 50+80+100+540 = 770 cal. The closest answer is 766 cal.
39. The instrument used to compare the illumination power of different sources is
Bolometer
Photometer
Spectrometer
Collimeter
(b) A photometer is an instrument used to measure the intensity of light or to compare the illumination power of different light sources.
40. A man heard the thunder 6 seconds later he saw a lightening. The temperature of air is 27 °C. How far was the flash of light from the man? (Velocity of sound in air at 0 °C is 332 m/s.)
1822 m
2332 m
2088 m
2445 m
(c) Velocity of sound at T °C is vT = v0 + 0.61T. Here, v0 = 332 m/s and T = 27 °C. v27 = 332 + (0.61 × 27) = 332 + 16.47 = 348.47 m/s. Distance = velocity × time = 348.47 m/s × 6 s ≈ 2090.82 m. The closest option is 2088 m.
41. Magnetic moment is
A scalar quantity
A vector quantity
Universal constant
Tensor
(b) Magnetic moment is a vector quantity; it has both magnitude and direction.
42. Velocity of sound in air is not affected by
Temperature
Density of air
Atmospheric pressure
Humidity
(c) The velocity of sound in air is directly proportional to the square root of the temperature and inversely proportional to the square root of the density of air. Humidity also affects it. However, at constant temperature, the velocity of sound in air is independent of changes in atmospheric pressure.
43. Jayabir was sitting in a car. The car took a circular turn and his body is pressed agaiinst the side of the car. The force acting on him is
Gravitational force
Centrifugal force
Centripetal force
Electrostatic force
(b) When a car takes a circular turn, a pseudo force called centrifugal force acts outwards on the person, pressing him against the side of the car.
44. The device used to convert AC to DC is called
A diode valve
Cathode ray tube
Oscillator
Xray
(a) A diode valve (or simply a diode, including semiconductor diodes) is used as a rectifier to convert alternating current (AC) into direct current (DC).
45. The density of ice is ………… density of water.
Is lesser than
Is greater than
Is higher than
Is equal to
(a) The density of ice is less than the density of water, which is why ice floats on water.
46. The power of a bulb is 100 watt at 220 V. When the voltage is 110 V, power of the bulb is:
150 W
50 W
120 W
25 W
(d) Power P = V2/R. Resistance R = V2/P = (220)2/100 = 484 ohms. When voltage is 110 V, Power P' = (110)2/484 = 12100/484 = 25 W.
47. What happens to the susceptibility of a ferromagnetic substance when the temperature is increased?
Increases
Decreases
Remain constant
Can increase or decrease
(b) The susceptibility of a ferromagnetic substance decreases as the temperature is increased and becomes paramagnetic above the Curie temperature.
48. The particle that has mass equal to the proton and no charge is
Electron
Proton
Neutron
Positron
(c) A neutron is a subatomic particle with a mass approximately equal to that of a proton and has no electric charge.
49. The magnification of compound microscope increases when focal length of eye piece is
Large
Small
Same as object
As great as infinity
(b) The magnifying power of a compound microscope is inversely proportional to the focal length of the eyepiece (M ≈ L/(fo + fe) * D/fe). Therefore, magnification increases when the focal length of the eyepiece (fe) is small.
50. In which of the following does heart pump only deoxygenated blood.
Fish
Amphibian
Reptiles
Birds
(a) In fish, the heart has two chambers (one atrium and one ventricle) and pumps deoxygenated blood to the gills where it gets oxygenated before circulating to the rest of the body.
51. Which cell is used to see colour?
Rod cell
Cone cell
Cornea cell
Irirs
(b) Cone cells in the retina are photoreceptor cells responsible for color vision and function best in bright light.
52. The shoulder and hip joints are of the type
Ball and socket joint
Hinge joint
Pivot joing
Gliding joint
(a) The shoulder and hip joints are examples of ball and socket joints, which allow for a wide range of motion.
53. Body segment of Taenia solium is
Proglottid
Scolex
Rostellum
Acetabulum
(a) The body of Taenia solium (tapeworm) is made up of segments called proglottids.
54. In Rabbit
Left kidney lies above right kidney
Right kidney lies above the left kidney
Both lie at the same level
Both lie on the left side
(b) In rabbits, the right kidney is typically situated slightly anterior and superior (higher) to the left kidney due to the position of the liver.
55. Flame cells are present as excretory organs in
Annelida
Platyhelminthes
Porigera
Coelenterata
(b) Flame cells (protonephridia) are the primary excretory organs found in flatworms (Platyhelminthes).
56. Uric acid is the main nitrogenous waste produced in
Fish
Birds
Amphibians
Mammals
(b) Birds are uricotelic, meaning they primarily excrete nitrogenous waste in the form of uric acid.
57. The cavity formed during the embryogenesis of frog is
Blastocoel
Archenteron
Coelenteron
Meseteron
(a) The blastocoel is the fluid-filled cavity that appears in the blastula during the embryogenesis of a frog.
58. During copulation of earthworm, sperm is received thrugh
Nephridial pore
Female genital pore
Spermatheca pore
Dorsal pore
(c) During mating in earthworms, sperm is exchanged and stored in structures called spermathecae, which open to the outside through spermathecal pores.
59. Mycobacterium tuberculosis is also known as
Hansen's disease
Koch's bacillus
Koch-weeks bacillus
Bancroftian disease
(b) Mycobacterium tuberculosis, the bacterium that causes tuberculosis, is also known as Koch's bacillus, named after Robert Koch who discovered it.
60. Myelin sheath is the covering of
GI tract
Cardiac muscles
Skeletal muscles
Axon of nerve cell
(d) The myelin sheath is an insulating layer that surrounds the axon of some nerve cells.
61. The number of cervical vertebrae in Giraffe is
14
17
7
8
(c) Giraffes, like most mammals, have 7 cervical vertebrae in their neck, despite the neck's great length.
62. Nucleus has maximum size during
Prophase
Metaphase
Interphase
Telophase
(c) The nucleus is typically largest during interphase, when the cell is growing and carrying out its normal metabolic activities, including DNA replication in preparation for cell division.
63. A typical example of cross pollination is
Balsam
Maize
Wheat
Cotton
(b) Maize (corn) is typically cross-pollinated as it is a monoecious plant with separate male (tassel) and female (ear) flowers.
64. Which is not involved in respiration of frog?
Diaphragm
Lungs
Skin
Buccal cavity
(a) Frogs lack a diaphragm and use their buccal cavity, skin, and lungs for respiration.
65. In the phloem of gymnosperm, the element that is not present is
Sieve tube
Companion cell
Parenchyma
Sclerenchyma
(b) Gymnosperms have sieve cells and albuminous cells (functionally similar to companion cells) in their phloem, but true companion cells are absent.
66. The gametes of Chlamydomonas are:
Uniflagellate
Biflagellate
Quadriflagellate
Multiciliate
(b) The gametes of Chlamydomonas are typically biflagellate, possessing two flagella of equal length.
67. The tetradynamous stamens is a feature of
Solanaceae
Malvaceae
Cruciferae
Compositae
(c) The presence of tetradynamous stamens (six stamens, four long and two short) is a characteristic feature of the family Cruciferae (Brassicaceae).
68. The process by which cell ingest solid food particles is
Endocytosis
Exocytosis
Pinocytosis
Phagocytosis
(d) Phagocytosis is a type of endocytosis by which cells engulf large particles, such as bacteria or cellular debris, essentially 'eating' them.
69. Double fertilization is seen in
Gymnosperm
Algae
Angiosperm
Bryophyta
(c) Double fertilization, a process involving the fusion of two sperm nuclei with different nuclei in the embryo sac, is a characteristic feature of angiosperms (flowering plants).
70. The product formed during anaerobic respiration by yeast is
Ethanol + CO2
Lactic acid + CO2
Pyruvic acid + CO2
H2O + CO2
(a) During anaerobic respiration (fermentation), yeast converts glucose into ethanol (alcohol) and carbon dioxide (CO2).
71. The organism having heterotrophic mode of nutrition is
Algae
Fungi
Bryophyta
Fern
(b) Fungi are heterotrophic organisms, meaning they cannot produce their own food and obtain nutrients from external organic sources.
72. Which of the following is associated with cell division?
Centriole
Mitochondria
Ribosome
Chloroplast
(a) Centrioles play a crucial role in the formation of the mitotic spindle during cell division in animal cells and some lower plants.
73. The sugar present in fruits, honey and nectar is
Mannose
Glucose
Fructose
Lactose
(c) Fructose is a monosaccharide commonly found in fruits, honey, and nectar.
74. Ovary is absent in
Angiiosperm
Gymnosperm
Monocot
dicot
(b) Gymnosperms do not have ovaries; their ovules are not enclosed within an ovary wall and are typically borne on the surface of sporophylls.
