10th class Biology unit 3 MCQs
chapter 3 MCQs 10th Class Biology
Coordination and control:
1. Which type of coordination is found in plants?
a. Nervous coordination
b. chemical coordination
c. Electrical coordination
d. Mechanical coordination`
2. How many numbers of components are involved in coordinated action?
a. Five
b. Two
c. Seven
d. Three
3. A coordinated action ends at:
a. Coordinator
b. Stimulus
c. Effectors
d. Response
4. Which organs act as a coordinator in a chemical coordination?
a. Endocrine glands
b. Brain
c. Neurons
d. Spinal cord
5. It is responsible for chemical coordination:
a. Peripheral nervous system
b. Endocrine system
c. Autonomic nervous system
d. Central nervous system
6. Which organs act as effectors in nervous coordination?
a. Bones
b. Muscles
c. Both
d. Glands
7. Which one is coordinator in nervous coordination?
a. Brain
b. Glands
c. Spinal cord
d. Brain and spinal cord
8. Specific organs, tissues or cells of the body that intercept the stimuli:
a. Coordinators
b. Receptors
c. Dendrites
d. Effectors
9. Action performed by effectors is:
a. Voluntary
b. Response
c. Involuntary
d. Stimulus
10. In neuron, nucleus is present in:
a. Cell body
b. Myelin sheeth
c. Nodes of Ranvier
d. Axons
11. The unit of nervous system is:
a. Receptors
b. Nucleus
c. Nephron
d. Neuron
12. The thread like projects of cell body which take nerve impulse towards the cell body of neuron are called:
a. Myelin
b. Axon
c. Nodes of Ranvier
d. Dendrites
13. The thread like projections of a neuron cell body which conduct nerve impulses away from the cell body of neuron are called:
a. Schwan cells
b. Axons
c. Nodes of Ranvier
d. Dendrites
14. The clusters of neurons cell bodies outside CNS are called:
a. Meninges
b. Pons
c. Ganglia
d. Nerves
15. How many types of nerves are classified on the basis of property of axons?
a. Four
b. Two
c. Five
d. Three
16. Neurons in which direction of nerve impulse is towards brain and spinal cord are called:
a. Motor neurons
b. Sensory neurons
c. Nerve impulse
d. Associative neurons
17. Types of neurons according to their work are:
a. Five
b. Three
c. Six
d. Four
18. Which neurons conduct impulses from CNS to effectors?
a. Sensory
b. Motor
c. Hormones
d. Inter
19. The largest and most highly developed part of human brain is called:
a. Hindbrain
b. Midbrain
c. Cerebellum
d. Forebrain
20. The three parts of forebrain are:
a. Thalamus, cerebrum, pons
b. Thalamus, hypothalamus and cerebrum
c. Cerebrum, pons, hypothalamus
d. Cerebellum, medulla oblongata, pons
21. If a problem exists in the medulla oblongata of a brain, which function of the body will be affected?
a. Heart beat
b. Intelligence
c. Thinking
d. Body balance
22. Which part of a hindbrain controls muscle movements?
a. Pons
b. Medulla oblongata
c. Cerebrum
d. Cerebellum
23. The part of the brain responsible for muscle movement, interpretation of the senses and the memory is the:
a. Cerebrum
b. Pons
c. Cerebellum
d. Medulla oblongata
24. They receive information, interpret them and stimulate motor neurons:
a. Motor neurons
b. Sensory neurons
c. Mixed neurons
d. Inter neurons
25. Which one controls rage, pain, pleasure and sorrow?
a. Hypothalamus
b. Cerebellum
c. Midbrain
d. Medulla
26. ……… lobe of forebrain contains sensory areas that receive impulses from skin:
a. Occipital
b. Parietal
c. Temporal
d. Frontal
27. Receives and analyzes visual information:
a. Frontal lobe
b. Temporal lobe
c. Parietal lobe
d. Occipital lobe
28. vertebral column protects:
a. Brain
b. Heart
c. Lungs
d. Spinal cord
29. Spinal cord is the continuation of:
a. Thalamus
b. Medulla oblongata
c. Hypothalamus
d. Frontal lobe
30. Length of the spinal cord is:
a. 30 cm
b. 10 cm
c. 40 cm
d. 20 m
31. Pair of spinal nerves are:
a. 21
b. 39
c. 12
d. 31
32. The myelin sheath is secreted by:
a. Axons
b. Schwann cells
c. Nodes of Ranvier
d. Dendrites
33. This lobe occupies regions of receiving information from skin:
a. Occipital
b. Frontal
c. Temporal
d. Parietal
34. the nature of myelin sheath is:
a. Insulator
b. Conductor
c. Rigid
d. Elastic
35. The largest part of forebrain is:
a. Cerebellum
b. Hypothalamus
c. Cerebrum
d Thalamus
36. Temporal lobes belong to:
a. Hearing and smelling
b. Control of skeletal muscles
c. Terror
d. About vision
37. This lobe belongs to the senses of hearing and smelling:
a. Occipital
b. Frontal
c. Temporal
d. Parietal
38. Effectors response after receiving information from coordinator. These effectors are called:
a. Effectors
b. Receptors
c. Response
d. Coordinators
39. The outer most layer of a human eye consists of:
a. Cornea
b. Retina
c. Sclera
d. Both a and c
40. The middle layer of eye ball is:
a. Retina
b. Sclera
c. Iris
d. Choroid
41. Which part of human eye contains blood vessels?
a. Pupil
b. Retina
c. Iris
d. Choroid
42. Central layer of eye is called:
a. Retina
b. Sclera
c. Iris
d. Choroid
43. There is a round hole in the centre of an iris called:
a. Cornea
b. Pupil
c. Choroid
d. Sclera
44. The middle layer of human eye is called:
a. Pupil
b. Sclera
c. Choroid
d. Cornea
45. The sensitive layer of eye is called:
a. Iris
b. Cornea
c. Choroid
d. Retina
46. In a human eye, there are rods about ……… lac:
a. 200
b. 100
c. 225
d. 125
47. Rhodopsin is present in a part of an eye:
a. Ligament
b. Rods
c. Fovea
d. Sclera
48. In human eye, there are about ……… lac cones:
a. Eight
b. Six
c. Nine
d. Seven
49. Rods and cones are present on:
a. Blindspot
b. Sclera
c. Retina
d. Cornea
50. It is the spot largely responsible for colour vision and sharpness:
a. Optic disc
b. Blind spot
c. Fovea
d. Iris
52. Who described 130 diseases of eye?
a. Jabber bin Hayyan
b. Ali Ibn-e- Isa
c. Ali bin Mussa
d. Newton
53. Hypermetropia is also called:
a. Myopia
b. Long sight
c. Night blindness
d. Short sight
54. The cochlea is present in:
a. Internal ear
b. External ear
c. Middle ear
d. None of these
55. Apart from hearing, ear also perform this major body function:
a. Reduction in nerve pressure
b. Hormone secretion
c. Body balance
d. All
56. Which separate middle ear from inner ear?
a. Tampanum
b. Stapes
c. Oval window
d. Ear drum
57. The eyes of dogs and cats shine due to the layer:
a. Tapicum
b. Tempanic
c. Plueral
d. Tapetum
58. It is the part of inner ear:
a. Ossicle
b. Cochlea
c. Pinna
d. Eardrum
59. Decreases the concentration of glucose in blood:
a. Testosterone
b. Glucagon
c. Calcitonin
d. Insulin
60. Owls cannot see during day time due to deficiency of:
a. Cornea
b. Cones
c. Rods
d. Both A and B
61. Power of speaking is only gifted to:
a. Parrot
b. Human beings
c. Crow
d. Monkey
62. Oval window is present in:
a. Internal ear
b. Middle ear
c. Eye
d. External ear
63. ……… is present after auditory canal:
a. Ear drum
b. Pinna
c. Pupil
d. Cochlea
64. A pigment present in rods is:
a. Iodopsin
b. Aqueous humor
c. Vitrous humor
d. Rhodopsin
65. An example of stimulus is:
a. Cold
b. Ear
c. Muscles
d. Brain
66. Iodopsin is present in:
a. Cones
b. Cornea
c. Rods
d. Choroid
67. The deficiency of this vitamin causes poor night vision:
a. B
b. D
c. A
d. C
68. Who wrote three books on surgery and diseases of eye?
a. Ali-Ibn-Esa
b. Ibn-e- Haythem
c. Abdul Malik Asmai
d. Bu-Ali-Sina
69. Controls the secretion of pituitary gland:
a. Hypothalamus
b. Grey matter
c. Thalamus
d. Cerebrum
70. When human body has low amount of water, then pituitary gland secretion:
a. TSH
b. Versopersrin
c. Oxytocin
d. Insulin
71. Which hormone causes contraction of uterus at the time of birth?
a. Oxytocin
b. Thyroxin
c. Calcitonin
d. Vasopression
72. Beneath the larynx in a human neck, name of gland is:
a. Adrenal
b. Parathyroid
c. Pancreas
d. Thyroid
73. Hormone increasing level of calcium ions in blood is:
a. Paratharmons
b. Adrenaline
c. Oxytocin
d. Calcitonin
74. Which is responsible for puberty and voice pitch lowering in male?
a. Testosterone
b. Estrogen
c. Glucagon
d. Progesterone
75. In auditory canal’s wall special glands produce:
a. Auditory fluid
b. Wax
c. Nerve impulse
d. Blood`
76. Which hormone is secreted by ovary?
a. Testosterone
b. Adrenaline
c. Progesterone
d. Calcitonin
77. This hormone is secreted in case of emergency situation:
a. Adrenaline
b. Pancreas
c. Calcitonin
d. Glucagon
78. Testosterone hormone is secreted from:
a. Thyroid gland
b. Pancreas
c. Adrenal gland
d. Gonads
79. It reduces the amount of calcium ions in blood:
a. Vasopression
b. Calcitonin
c. Oxytocin
d. Parathormone
80. The largest endocrine gland in the human body is:
a. Thyroid gland
b. Adrenal gland
c. Pancreas
d. Parathyroid gland
81. There are two glands on the kidneys:
a. Thyroid
b. Adrenal
c. Pancreas
d. Parathyroid
82. All of the following are hormones except:
a. Thyroxin
b. Glucagon
c. Pepsinogen
d. Insulin
83. Which hormone produces male secondary sex characters?
a. Progesterone
b. Testosterone
c. Insulin
d. Estrogen
84. It prepare rhodopsin from vitamin ……… in the body:
a. D
b. K
c. A.B
d. A
85. In every 100 ml of human blood concentration of glucose is maintained as:
a. 100-150mg
b. 180-200 mg
c. 80-120 mg
d. 150-180 mg
86. Disease caused by deficiency of iodine in food is called:
a. Dwarfism
b. Diabetes mellitus
c. Goiter
d. Hyperthyroidis
87. The symptoms of Diabetes mellitus are except:
a. Problem in breathing
b. Weakness of muscles
c. Weight loss
d. Fatigue
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