Animal Physiology MCQs Part 19

1) Erythropoietin is a
a) Lipid
b) Mucopolysaccharide
c) Glycoprotein
d) Nucleoprotein

2) Phagocytic endothelial cells are
a) Monocytes
b) Kupffer’s cells
c) Lymphocytes
d) Plasma cells

3) Kupffer’s cells are
a) Stellate cells
b) Star cells
c) Phagocytic cells
d) All the above

4) The rete mirabile is
a) A network of fine blood vessels
b) Branches of arteries reforming arteries
c) A store house of oxygen
d) All the above

5) Pseudo-unipolar neurons are
a) Neurons without any dendron
b) Neurons without any axon
c) Actually bipolar neurons
d) Actually nonpolar neurons with an edge of the cyton prolonged

6) A characteristic of ganglia is that they are
a) Hollow cluster of nervous tissue
b) Nervous tissue devoid of tissue sheath
c) Solid cluster of nervous tissue surrounded by tissue sheath
d) Found inside the central nervous system

7) A flattened sheet connecting a muscle with an organ or bone is
a) Aponeurosis
b) Ligament
c) Epineurium
d) Epimysium

8) The Achilles tendon connects
a) Calf muscles to heel
b) Thigh muscles to knee
c) Biceps muscles to shoulder girdle
d) Biceps muscles to shouldr girdle

9) Melanin pigment of the human skin is produced by
a) Mast cells of corium
b) Melanocytes of corium and incorporated there
c) Melanocytes of corium and incorporated n epidermis
d) Melanocytes of epidermis

10) A callus or skin callosity develops in response to
a) Repetitive Pressure
b) Irritation
c) Injury
d) All the above

11) Acne develops in response to
a) Fungal infection
b) Viral infection
c) Overactivity of sebaceous glands
d) Overactivity of sudoriferous glands

12) The amount of water present inside human body cells is about
a) 15 litres
b) 5 litres
c) 25 litres
d) 10 litres.

13) The daily loss of water through breathing, perspiration and excretion is
a) 1.5 litres
b) 3 litres
c) 5 litres
d) 7-5 litres

14) Hallucinations begin to appear with a water loss of
a) 1-5 litres
b) 3 – 0 litres
c) 4 – 0 litres
d) 6 – 0 litres

15) Eye teeth are
a) Upper incisors
b) Lower incisors
c) Lower canines
d) Upper canines

16) The commonest disease of teeth is
a) Mottling
b) Caries
c) Dissolution of enamel
d) Pyorrhoea

17) The length of the human alimentary canal is
a) 100 cm
b) 3 – 4 m
c) 4 – 6 m
d) 6 – 9 m

18) The cloaca is a
a) Common aperture for digestive and urinary systems
b) Common aperture for digestive, urinary and reproductive systems
c) Common chamber in which reproductive, urinary and digestive tracts open
d) Common chamber for digestive and urinary tracts

19) The cloaca is
a) Absent in mammals
b) Found in prototheria
c) Present in all fishes
d) Both B and C

20) The scientist who studied digestion for the first time was
a) Beaumount
b) Pavlov
c) Guillemin
d) Sach

21) The scientist who found that the secretion of gastric juice was under nervous control was
a) Pavlov
b) Reamur
c) Spallanzani
d) Both B and C

22) Pavlov’s pouch is
a) An artificial stomach
b) A bag containing digestive enzymes
c) A bag containing food
d) Opened stomach of a dog

23) Intracellular digestion occurs in the human body for
a) Lipids
b) Proteins
c) Sucrose
d) All the above

24) Indigestible plant matter that dissolves in water is called
a) Pectin
b) Gum
c) Hemicellulose
d) Soluble fibre

25) Soluble fibre is useful medically for
a) Optimum functioning of alimentary canal
b) Reduction in blood cholesterol
c) Binding of faecal matter
d) Non-corrosion of intestinal lining

26) Hyperventilation is
a) Extra deep breathing
b) Rapid breathing
c) Rapid shallow breathing
d) Rapid deep breathing

27) Panting after vigorous exercise is due to
a) Oxygen debt
b) Continuity of deep breathing even after exercise
c) Continuity of mouth breathing started during exercise
d) Requirementof rapid dissipation of energy

28) Which organ in a bird gets inflated on inspiration?
a) Lungs
b) Air sacs
c) Air capillaries
d) All the above

29) Non-secretion of uric acid in human beings produces
a) Uraemia
b) Gout
c) Calculi
d) Both B and C

30) Macula densa is found in
a) Internal ear
b) Kidney
c) Liver
d) Spleen

31) The cells of the macula densa produce
a) Erythropoietin
b) Renin
c) Angiotensionogen
d) Angiotensin

32) Juxta-glomerular cells form
a) Angiotensinogen and angiotensin
b) Renin and erythropoietin
c) Counter-current
d) Selective secretory and absorptive apparatus

33) Broca’s area of the frontal lobe is the language centre for the
a) Ability to talk
b) Comprehension of spoken words
c) Comprehension of written words
d) All the above

34) The number of neurotransmitters is about
a) 5
b) 10
c) 30
d) 50

35) A neurotransmitter which also functions as a hormone is
a) Acetylcholine
b) Dopamine
c) Noradrenaline/Norepinephrine
d) Both B and C

36) Dopamine neurons are connected with the syndrome called
a) Horton’s syndrome
b) Parkinsonism
c) Schizophrenia
d) Both B and C

37) The dentist’s nerve is
a) Trigeminal
b) Facial
c) Auditory
d) Glossopharyngeal

38) Images formed of an object by the two human eyes are
a) Similar
b) Slightly different
c) Completely different
d) Both A and B

39) The near point of the human eye is
a) 25 cm
b) 20 cm
c) 15 cm
d) 10 cm

40) a- and ß-cells in the islets of Langerhans are respectively defunctioned by
a) Mercuric chloride and alloxan
b) Alloxan and DDT
c) Alloxan and cobalt chloride
d) Cobalt chloride and alloxan

41) The narrow apex of a renal pyramid is called a
a) Column of Bertin
b) Calyx
c) Papillary duct of Bellini
d) Pelvis

42) Under normal conditions which chemical is completely reabsorbed in the rental tubule?
a) Urea
b) Uric acid
c) Salts
d) Glucose

43) The liquid which collects in the cavity of Bowman’s capsule is
a) Concentrated urine
b) Plasma minus blood proteins
c) Glycogen and water
d) Sulphates and water

44) Nitrogenous waste products are eliminated mainly as
a) Urea in tadpole and ammonia in adult frog
b) Ammonia in tadpole and urea in adult frog
c) Urea in both tadpole and adult frog
d) Urea in tadpole and uric acid in adult frog

45) Which of the following is true about the distal convoluted tubule?
a) Na+ reabsorption requires energy
b) K+ reabsorption does not require energy
c) Ammonia is excreted
d) Water reabsorption requires energy

46) The ornithine cycle (urea formation/deamination) operates in the
a) Stomach
b) Pancreas
c) Liver
d) Oral cavity

47) The two kidneys lie
a) At the level of ovaries
b) At the same level
c) Left kidney at a higher level than the right one
d) Right kidney at a higher level than the left one

48) The ornithine cycle removes two waste products from blood in liver
a) Urea and carbon dioxide
b) Carbon dioxide and ammonia
c) Ammonia and uric acid
d) Ammonia and urea

49) Which one is a component of the ornithine cycle?
a) Arginine and ornithine
b) Glycine and methionine
c) Aspartic and glucamic acids
d) Valine and cystine

50) Bowman’s capsule is a constituent of the
a) Renal artery
b) Ureter
c) Uriniferous tubule
d) Renal portal vein

51) In the housefly the excretory organs are
a) Nephridia
b) Flame cells
c) Malpighian tubules
d) Kidneys

52) Which one is both hormone and enzyme?
a) ADH
b) Angiotensionogen
c) Acetylcholinesterase
d) Renin

53) In uraemia, an artificial kidney is used for removing accumulated waste products like urea by the process called
a) Micturition
b) Ureotelism
c) Reverse dialysis
d) Haemodialysis

54) The amount of blood filtered per minute in the kidneys is
a) 1200 ml
b) 1500 ml
c) 3000 ml
d) 4500 ml

55) Urine is concentrated in the loop of Henle in
a) Descending limb
b) Thick ascending limb
c) Hairpin bend between descending and ascending limbs
d) Area between ascending limb and distal convoluted tubule

56) Which of the following groups have similar functions?
a) Typhlosole in Earthworm, intestinal villi in Rat and contractile vacuole in Amoeba
b) Nephridia in Earthworm, malpighian tubules in Cockroach and urinary tubules in Rat
c) Antennae in Cockroach, tympanum of Frog and clitellum of Earthworm
d) Incisors of Rat, gizzard (proventriculus) of Cockroach and tube feet of Starfish

57) The two halves of the pectoral girdle fuse in
a) Laterally
b) Mid-dorsally
c) The mid-ventral line
d) The dorsal and ventral lines

58) Fenestra rotundus connects the
a) Middle ear to pharynx
b) External ear to middle ear
c) Middle ear to inner ear
d) Semicircular canals to utriculus

59) The largest mammalian vertebra is
a) Lumbar
b) Thoracic
c) Cervical
d) Sacral

60) The total number of muscles in the human body are
a) 439
b) 639
c) 539
d) 409

61) The longest ‘visceral’ muscle occurs in the
a) Vas deferens
b) Pregnant uterus
c) Normal uterus
d) Abdomen

62) Joints between bones of human skull are
a) Hinge joints
b) Synovial joints
c) Cartilaginous joints
d) Fibrous joints

63) When a stimulus several times greater than the threshold stimulus is provided to a muscle fibre, it will
a) Contract with the same force
b) Contract forcefully
c) Contract slightly
d) Undergo tetany

64) Which is not a function of bones?
a) Protection of vital organs
b) Haemopoiesis
c) Muscle attachment
d) Secretion of hormones

65) Fabellae (bones) are associated with the
a) Elbow joint
b) Knee joint
c) Neck joint
d) Angular joint

66) The spinal cord passes through the
a) Foramen of Monro
b) Iter
c) Obturator foramen
d) Foramen magnum

67) Rigor mortis is due to
a) Depletion of ATP
b) Excess ATP
c) Excess availability of Calcium
d) Release of Magnesium

68) True joints are
a) Synovial joints
b) Synchondrosis
c) Syndesmoses
d) Symphyses

69) The globular protein which masks active sites on F-actin is
a) Troponin
b) Tropomyosin
c) Myosin
d) Light metromyosin

70) Statements : 1. A bands are dark and contain myosin 2. I-bands are light and contain actin 3. During action, A band contracts 4. Part between two Z-lines is sarcomers 5. Central part of thin filament, not overlapped by thick filament is H-zone.
a) 1, 2 and 3 are correct, 4 and 5 incorrect
b) 1, 3 and 5 correct, 2 and 4 incorrect
c) 1, 2 and 4 correct, 3 and 5 incorrect
d) 1 and 2 correct, 3, 4 and 5 incorrect

71) White matter is composed of
a) Nerve cells
b) Nerve fibres
c) Ependymal cells
d) None of the above

72) The corpora striata are in the
a) Roof of the lateral ventricle
b) Floor of the lateral yentricle
c) Lateral walls of the lateral ventricle
d) None of the above

73) The function of the choroid plexus is
a) To produce lymph
b) To produce blood
c) To produce cerebrospinal fluid
d) To produce endolymph

74) Inter-vertebral formina are covered by
a) Body discs
b) Skin
c) Muscles
d) Periganglionic glands

75) The premotor area of brain is the highest centre of
a) Thinking
b) Autonomous nervous system
c) Movements of involuntary muscles
d) Both B and C

76) The eighth cranial nerve of vertebrates leads from the brain to the
a) Ear
b) Eye
c) Nose
d) Tongue

77) What is common between (i) acetylcholine (ii) noradrenaline (iii) serotonin?
a) All are chemical transmitters
b) All are antidiuretic drugs
c) All are blood pressure-lowering drugs
d) None of the above

78) The third ventricle and fourth ventricle of the brain are connected through a narrow passage called
a) Foramen of Monro
b) Neural canal
c) Iter
d) None of these

79) Which one is not a reflex action?
a) Closing of eye lids against fricking
b) Release of saliva on seeing sweets
c) Perspiration due to heat
d) Obeying the order to run

80) Which part of the human brain is most highly developed?
a) Medulla
b) Cerebellum
c) Cerebrum
d) Optic lobes

81) The action potential of a nerve cell is
a) -60 mv
b) -80 mv
c) +20 mv
d) +60 mv

82) If the cerebral hemispheres of a frog are removed, the animal
a) Dies after some time
b) Dies immediately
c) Behave normally
d) Stops feeding

83) Broca’s centre (motor centre for speech) is present in the
a) Left cerebral hemisphere
b) Right cerebral hemisphere
c) Both the cerebral hemisphere
d) Diencephalon

84) I.Q. is the ratio of mental age to
a) Chronological age multiplied by 100
b) Chronological age multiplied by 10
c) Chronological age
d) Chronological age divided by 100

85) A student is able to learn how to play the harmonium more easily than type writing. This is because playing the harmonium is a case of
a) Residual learning
b) Conditional reflex
c) Short term homeostasis
d) Long term homeostasis

86) Dorsal root ganglion is
a) Motor
b) Mixed
c) Sensory
d) None of the above

87) The third, sixth and eleventh cranial nerves are
a) Oculomotor, Abducens and Accessory Spinal
b) Oculomotor, Trigeminal and Accessory Spinal
c) Optic, Facial and Accessory Spinal
d) Trochlear, Abducens and Vagus

88) What happens if the ophthalmic branch of trigeminal is cut in a frog?
a) The frog dies
b) The frog becomes blind
c) The frog loses its capacity of sensing
d) None of the above

89) The midbrain contains the
a) Corpora quadrigemina
b) Diencephalon
c) Cerebrum
d) None of the above

90) In a resting nerve fibre which of the following is true?
a) 3Na+ are pumped in and 2K+ pumped out
b) 3Na+ are pumped out for every 2K+ pumped in
c) There is no Na-K pump
d) Na-K pump stops working

91) Anaesthetics reduce pain by blocking nerve conduction due to
a) Blocking neurotransmitter receptors
b) Blocking Na+ channels
c) Blocking K+ channels
d) All the above

92) The passage of an action potential from one node of Ranvier to the next is
a) Nodal conduction
b) Saltatory conduction
c) Threshold stimulus
d) Mechanical conduction

93) Broca’s area and Wernicke centre of association area occur in cerebrum. They are connected with
a) Memory
b) Voluntary action
c) Blind spot
d) Both A and B

94) The part of the brain controlling balance and coordination is the
a) Cerebrum
b) Medulla oblongata
c) Hypothalamus
d) Cerebellum

95) A frog with a crushed brain is pinched on the leg. The leg is drawn away. It is a/an
a) Automatic motor response
b) Neurotransmitter induced response
c) Conditional reflex
d) Simple reflex

96) Arbor vitae are the
a) Tree like structures in cerebrum
b) Tree of life in cerebellum
c) End part of the spinal cord
d) Branched dendrites of a neuron

97) The space between pia mater and arachnoid is the
a) Supra-arachnoid
b) Subarachnoid
c) Subdural
d) Epidural

98) The tongue is under the control of the
a) Facial nerve
b) Glossopharyngeal nerve
c) Trigeminal nerve
d) Autonomous nervous system

99) In the hypothalamus are located various centres of
a) Metabolism
b) Circulation
c) Respiration
d) Excretion

100) Parkinson’s disease (characterised by tremors and progressive regidity of limbs) is due to degeneration of brain neurons involved in movement control, which use the neurotransmitter
a) Acetylcholine
b) Norepinephrine
c) Dopamine



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