(b) Glucagon is a hormone secreted by the alpha cells of the pancreas.
2. DOTS is related to
TB
Measles
Typhoid
AIDS
(a) DOTS (Directly Observed Treatment, Short-Course) is a strategy used for treating tuberculosis (TB).
3. Haemostasis means
[Normal coagulation of blood = Haemostasis]
Blood loss
Resistance to blood flow
Coagulation of blood
Internal regulatory mechanism
(c) Haemostasis refers to the process of stopping blood loss, which includes coagulation.
4. In the stool examination, outer mammilated bile stained coat is formed. The stool may contain
Ascaris lumbricoides
Trichuris trichuria
Ancylostoma
Enterobious
(a) The presence of an outer mammilated bile-stained coat in stool examination is characteristic of Ascaris lumbricoides eggs.
5. Oxygenated blood is found in
Pulmonary vein
Pulmonary artery
Umbilical vein
Both a and c
(d) Oxygenated blood is carried by the pulmonary vein from the lungs to the heart and by the umbilical vein from the placenta to the fetus.
6. Which of the following is involved in body defence mechanism?
Lymphocyte
Erythrocyte
Thrombocyte
Monocyte
(a) Lymphocytes are a type of white blood cell that plays a crucial role in the immune system and the body's defense mechanism.
7. Which of the following is both exocrine and endocrine
Liver
Pancreas
Kidney
Thyroid
(b) The pancreas is a heterocrine gland, functioning as both an exocrine gland (secreting digestive enzymes) and an endocrine gland (secreting hormones like insulin and glucagon).
8. Pancreas helps in the digestion of
[Mainly fat digestion occurs]
Carbohydrate
Protein
Fat
Minerals
(c) The pancreas secretes enzymes that aid in the digestion of carbohydrates, proteins, and fats, with a major role in fat digestion through enzymes like lipase.
9. Which of the following is not the part of large gut?
Ileum
Rectum
Caecum
Vermiform appendix
(a) The ileum is the final section of the small intestine, not part of the large intestine (large gut). The rectum, caecum, and vermiform appendix are all parts of the large intestine.
10. Valve in between right auricle and right ventricle has
2 cusps
3 cusps
1 cusp
5 cusps
(b) The valve between the right atrium (auricle) and the right ventricle is the tricuspid valve, which has three cusps or leaflets.
11. Number of spinal vertebrae in mammals is
22
33
37
12
(b) Mammals typically have around 33 spinal vertebrae, though this number can vary slightly between species.
12. All of the following Helminthes are related to soil transmission except
Hymenosepsis nana
Ascaris lumbricoides
Trichursi trichuria
Enterobius vermicularis
(a) Hymenolepis nana (dwarf tapeworm) transmission typically involves fecal-oral route, often person-to-person, and can involve rodents, not strictly soil transmission like Ascaris, Trichuris, and Enterobius.
13. Excess level of sodium in blood is called
Hypernatremia
Hypercalcaemia
Hyperglycemia
Hyperkalemia
(a) Hypernatremia refers to an elevated level of sodium (Na+) in the blood.
14. Typhoid is caused by
Salmonella
Corynebacterium
Hemophilous
Neisseria
(a) Typhoid fever is caused by the bacterium Salmonella typhi.
15. Which of the following glands is affected in Mumps?
Thyroid gland
Parotid gland
Parathyroid gland
Thymus gland
(b) Mumps is a viral infection that primarily affects the parotid glands, which are salivary glands located near the ears.
16. Number of lobes in right lung is
3
5
6
7
(a) The right lung typically has three lobes: superior, middle, and inferior.
17. HIV virus can not be transmitted by
Amniotic fluid
Saliva
Blood
Semen
(b) HIV is primarily transmitted through certain body fluids like blood, semen, pre-seminal fluid, rectal fluids, vaginal fluids, and breast milk. Transmission through saliva has not been shown to occur.
18. Hearing threshold is measured in
Decibel
Bel
Diopter
Hertz
(a) Hearing threshold, the faintest sound a person can hear, is measured in decibels (dB).
19. Filariasis is caused by
Protozoa
Virus
Bacteria
Helminthes
(d) Filariasis, including elephantiasis, is caused by parasitic worms (helminths) such as Wuchereria bancrofti.
20. Muscular fatigue is due to
Lactic acid
Citric acid
Maleic acid
Acetic acid
(a) Muscular fatigue during intense exercise is often associated with the buildup of lactic acid in the muscles.
21. Which of the following embryo has parasitic mode of nutrition?
Bird's embryo
Amphibian embryo
Reptilian embryo
Mammalian embryo
(d) The mammalian embryo receives nutrition directly from the mother through the placenta, exhibiting a parasitic mode of nutrition during its development.
22. Immunity theory of ageing is associated with disappearance of
Thyroid gland
Parathyroid galns
Thymus gland
Adrenal gland
(c) The thymus gland, which plays a vital role in the immune system, tends to shrink and its function declines with age, a concept associated with the immunity theory of aging.
23. In which of the following only oxygenated blood flows?
Fishes
Reptiles
Prawns
Frog
(c) Prawns have an open circulatory system where hemolymph (not just oxygenated blood) flows through sinuses and vessels.
24. Hydra regenerated by
Compensatory hypertrophy
Morphollaxis
Epimorphosis
Autotomy
(b) Hydra regenerates through morphollaxis, a process where existing cells rearrange to form a new organism.
25. Gemmule formation occurs in
Porifera
Coelenterata
Annelida
Echinodermata
(a) Gemmules are internal buds found in sponges (Porifera) and are involved in asexual reproduction, particularly during unfavorable conditions.
26. Locomotory organ in Starfish is
Tentacles
Feet
Water vasctular system
Cilia
(c) The water vascular system, with its tube feet, is the primary locomotory organ in starfish and other echinoderms.
27. Nissil's body is forund in
Nerve cells
Kidney
Liver
Pancreas
(a) Nissl bodies are granules found in the cytoplasm of nerve cells (neurons), particularly in the cell body and dendrites.
28. Contraction of uterus in female due to the secretion of
Oxytocin
Prolactin
Vasopressin
TSH
(a) Oxytocin is a hormone that stimulates uterine contractions during childbirth.
29. Cavity that appears during embryogenesis of frog is
Blastocoel
Archenterona
Coelom
Alimentary
(a) The blastocoel is the fluid-filled cavity that appears in the blastula stage during the early embryonic development of a frog.
30. The study of migration of birds is known as
Phenology
Nidology
Phrenology
Nephrology
(a) Phenology is the study of cyclic and seasonal natural phenomena, including the migration of birds.
31. Tracheal system of respiration is found in
Insects
Crayfish
Millipede
Spider
(a) Insects have a tracheal system, a network of tubes that deliver oxygen directly to tissues throughout the body.
32. Structure that provides nutrition to spermatozoa
Sertoli cells
Leydig cells
Vas deferens
Seminal vesicle
(a) Sertoli cells in the testes provide nourishment and support to developing spermatozoa.
33. Lateral line organs is found in
Amphibia
Gnathostomata
Osteichthyes
Reptilia
(c) Lateral line organs, sensory receptors that detect water movement, are primarily found in fish (Osteichthyes) and some aquatic amphibians.
34. Endosperm of Maize is
Haploid
Diploid
Triploid
Tetraploid
(c) The endosperm in angiosperms, including maize, is typically triploid (3n).
35. Drosera (Insectivorous plant) catches insesect by
Adhesive disc
Tentacles which shiny liquid
Bladder
Pitcher
(b) Drosera, also known as sundews, have tentacles covered in sticky glands that trap insects.
36. Coling of tendrils around base is called
Hydrotropism
Geotropism
Chemotropism
Haptotropism
(d) The coiling of tendrils around a support is a touch-sensitive response called haptotropism or thigmotropism.
37. Respiraiton and photosynthesis both require
Cytochrome
Sunlight
Oxygen
Carbondioxide
(a) Both respiration and photosynthesis involve electron transport chains that utilize cytochromes.
38. In Betel plant climbing organ is
Tendrils
Root
Stem
Leaves
(b) Betel plants are climbers that use adventitious roots arising from the nodes of the stem to attach to and climb supports.
39. Heterotrophic lower organism is
Bryophytes
Fungi
Pteridophytes
Algae
(b) Fungi are heterotrophic organisms, meaning they obtain their nutrition from other organic sources, and are considered lower organisms in terms of plant classification.
40. The vascular cryptogam is
Bryophytes
Thallophytes
Pteridophytes
Fungi
(c) Pteridophytes (ferns and their allies) are vascular plants that reproduce via spores (cryptogams).
41. Gibberelin was first isolated from
Algae
Fungi
Bacteria
Lichen
(b) Gibberellins were first isolated from the fungus Gibberella fujikuroi.
42. Phyllode bearing plant is
Opuntia
Ruscus
Acacia
Asparagus
(c) Acacia plants in many species have phyllodes, which are flattened petioles that perform the function of leaves.
43. The parasitic algae is
Cepahleorus
Vorticella
Spirogyra
None
(a) Cephaleuros is a genus of parasitic algae that causes diseases in plants, such as red rust of tea.
44. Tetradynamous condition is found in
Cruciferae
Solanaceae
Malvaceae
Compositae
(a) Tetradynamous condition, where there are six stamens with four long and two short, is characteristic of the family Cruciferae (Brassicaceae).
45. Synapsis occurs in which stage?
Leptotene
Zygotene
Pachytene
Diplotene
(b) Synapsis, the pairing of homologous chromosomes, occurs during the zygotene stage of meiosis I.
46. Two bodies of masses m and 2m are moving with same K.E. The ratio of their linear momenta is
1:1
√2:1
1:√2
2:1
(c) Kinetic energy (K.E.) = p2/(2m), where p is linear momentum and m is mass. Since K.E. is the same, p12/(2m) = p22/(4m) => p12/p22 = 2/4 = 1/2 => p1/p2 = 1/√2.
47. Among the following colours, which has minimum speed?
Red
Violet
Blue
Green
(b) In a prism, violet light deviates the most, meaning it has the minimum speed in the prism material (assuming normal dispersive material).
48. Resultant of two forces F1 and F2 is F1 and the resultant is at right angle to the force F1. Then the force F2 is equal to
2F1
0
F1
√2 F1
(d) Let R be the resultant force. Given R = F1. Also, R is at right angle to F1. So, F12 + F22 + 2F1F2cosθ = R2 = F12. This gives F22 + 2F1F2cosθ = 0. Also, from vector diagram, tan(90) = F2sinθ / (F1 + F2cosθ) => denominator must be zero => F1 + F2cosθ = 0 => cosθ = -F1/F2. Substituting in the previous equation, F22 + 2F1F2(-F1/F2) = 0 => F22 - 2F12 = 0 => F2 = √2 F1.
49. Root mean square velocity of O2 gas is 400 m/s. Then, Vrms of He is
(b) Rockets work on the principle of conservation of linear momentum.
52. The power of two heater coils is P1 and P2. If they are connected in series, the resultant power is
P_1+P_2
((P_1 P_2 ))/(P_1+P_2 )
0
√(P_1 P_2 )
(b) For heater coils, P = V2/R => R = V2/P. When connected in series, the total resistance Rs = R1 + R2 = V2/P1 + V2/P2 = V2(P1 + P2) / (P1P2). The resultant power Ps = V2/Rs = V2 / [V2(P1 + P2) / (P1P2)] = (P1P2) / (P1 + P2).
53. The graph of Newton's law of cooling follows
Parabolic path
Linear relation with time
Rectangle hyperbolic path
Exponential relation with time
(d) Newton's law of cooling states that the rate of heat loss of a body is directly proportional to the difference in the temperatures between the body and its surroundings. This leads to an exponential decrease in temperature with time.
54. Einstein's photoelectric equations states that E_k=E−W. In this equation E_k refers to
K.E. of all the emitted electrons
Mean K.E. of the emitted electrons
Maximum K.E. of the emitted electons
Maximum K.E. of all electrons
(c) In Einstein's photoelectric equation, Ek represents the maximum kinetic energy of the emitted photoelectrons.
55. Emission of electons due to light is called
Thermoionic emission
Photoelectric emission
Both a and b
None
(b) The emission of electrons from a material when light shines on it is called photoelectric emission.
56. Divergence of gold leaf 🍃 is used to study
Charge
Potential
Energy
None
(a) The divergence of the leaves in a gold-leaf electroscope is used to detect the presence and magnitude of electric charge.
57. Max. no. of electrons in d subshell is
2
6
10
14
(c) The d subshell can hold a maximum of 10 electrons (with five orbitals, each holding two electrons).
58. pH of 0.001 M HCl is
1
2
3
0
(c) HCl is a strong acid, so [H+] = 0.001 M = 10-3 M. pH = -log[H+] = -log(10-3) = 3.
59. The product of acylation is
Acetyl chloride
Acetic anhydride
Ethyl acetate
Ethyl chloride
(b) Acylation typically involves the introduction of an acyl group (RCO-) into a molecule. Acetic anhydride ((CH3CO)2O) is a common acylating agent, and it is also a product in some acylation reactions.
60. Benzene reacts with H2 in sunlight to form cyclohexane. This is an example of
Addition rxn
Reduction rxn
Substition rxn
Oxidation rxn
(a) The reaction of benzene with H2 to form cyclohexane involves the addition of hydrogen across the double bonds of the benzene ring.
61. Nitrobenzene forms aniline by:
Addition rxn
Reduction rxn
Substitution rxn
All
(b) Nitrobenzene is reduced to aniline using reducing agents like Sn/HCl or Fe/HCl.
62. Aniline converts to Benzanilide by reaction with
Benzoylchloride
Chlorobenzene
Benzylchloride
Phenylchloride
(a) Aniline reacts with benzoyl chloride (C6H5COCl) in the presence of a base (like pyridine) to form benzanilide (C6H5NHCOC6H5) via a process called Schotten-Baumann reaction.
63. 0.4 gm of NaOH is added to 10 ml of 1N HCl, the resulting solution is
Acidic
Alkaline
Neutral
None
(c) Moles of NaOH = mass/molar mass = 0.4/40 = 0.01 moles. Equivalents of HCl = Normality × Volume (in liters) = 1 N × (10/1000) L = 0.01 equivalents. Since NaOH is a monoacidic base, moles = equivalents. So, moles of NaOH = equivalents of HCl, resulting in a neutral solution.
64. Optical activity is measured by
Polarimeter
Photometer
Optometer
Bolometer
(a) Optical activity, the ability of a substance to rotate the plane of polarized light, is measured using a polarimeter.
65. Which of the following can't reduce Fehling's solution?
Formic acid
Acetic acid
Formaldehyde
Acetaldehyde
(b) Fehling's solution is reduced by aldehydes and α-hydroxy ketones, as well as formic acid. Acetic acid, being a carboxylic acid without an aldehyde group or α-hydroxy ketone structure, cannot reduce Fehling's solution.
66. 10 ml of 2M H2SO4 is mixed with 10 ml of H2O. 10ml of mixture can neutralize …of 2N NaOH.
20 ml
5 ml
10 ml
15 ml
(b) Initial moles of H2SO4 = Molarity × Volume (in liters) = 2 M × (10/1000) L = 0.02 moles. After mixing with 10 ml water, the total volume is 20 ml. The molarity of the mixture becomes (0.02 moles) / (20/1000) L = 1 M. Normality of H2SO4 in the mixture = Molarity × basicity = 1 M × 2 = 2 N. To neutralize 2N NaOH, using N1V1 = N2V2, we have 2 N × 10 ml = 2 N × V2 => V2 = 10 ml. There is an error in my calculation. Let me redo. Initial moles of H2SO4 = 0.02. Final volume = 20ml. Final Molarity = 0.02 / 0.02 = 1M. Final Normality = 2N. So we have 10ml of 1M H2SO4 (which is 2N in terms of H+). We need to neutralize with 2N NaOH. Using N1V1 = N2V2. 2 * 10 = 2 * V2. V2 = 10ml. Let's check again. Initial moles H2SO4 = 0.02. Moles of H+ = 0.04. After dilution to 20ml, [H+] = 0.04 / 0.02 = 2M. So normality is 2N. We have 10ml of 2N acid. We need to neutralize with 2N base. So volume of base = 10ml. There is an error in the options.
67. Delocalization of electrons in sigma and π bond is
Hyperconjucation
Resonance
Electromeric effect
Inductive effect
(a) Hyperconjugation involves the delocalization of sigma (σ) electrons (usually C-H or C-C bonds) into an adjacent empty or partially filled p orbital or a π orbital.
68. Borax is
Na_2 B_4 O_7⋅10H_2 O
Na_3 BO_3⋅4H_2 O
Na_2 B_4 O_7⋅7H_2 O
Na_2 B_4 O_7⋅5H_2 O
(a) The chemical formula of borax is sodium tetraborate decahydrate, Na2B4O7⋅10H2O.
69. Methanol and Ethanol react with water due to the formation of
Covalent bond
Hydrogen bond
Van der Waal's force
Dipole-dipole interaction
(b) Methanol (CH3OH) and ethanol (C2H5OH) are soluble in water due to their ability to form hydrogen bonds with water molecules through their hydroxyl (-OH) group.
70. Which of the following metal gives golden yellow colour on flame test
Ca
Ba
K
Na
(d) Sodium (Na) salts impart a characteristic golden yellow color to the flame in a flame test.
