CBSE Questions for Class 11 Medical Biology Neural Control And Coordination Quiz 14 - MCQExams.com

The nerve cell can be distinguished from other cells of the body by the presence of 
  • Protoplasm
  • Cell membrane
  • Mitochondria
  • Neurites
Presynaptic membrane is a part of 
  • Dendron
  • Axon hillock
  • Telodendria
  • Soma
Given below is a table comparing the effects of sympathetic and parasympathetic nervous system for four features. which one feature is correctly matched?


FeatureSympatheticParasympathetic
1.Salivary glandstimulates  inhibits
2.Pupil of the eyedilates constricts
3.Heart ratedecreasesincreases
4.Intestinal peristalsisstimulatesinhibits
  • 1
  • 2
  • 3
  • 4
Match column I with column II and select the correct answer.
List IList II
ANissl's  granulesiAstrocytes
BTractiiCerebellum
CMuscle toneiiiArachnoid
DStar-shaped glial cellsivDura mater
EOutermost brain envelopvMitochondria
viCollection of nerve fibres
viiRepolarisation
viiiOligodendrocytes
ixCollection of cytons
xRibosomes
  • A-x, B-ix, C-ii, D-i, E-iv
  • A-v, B-vi, C-vii, D-viii, E-iii
  • A-x, B-vi, C-ii, D-i, E-iv
  • A-v, B-vi, C-ii, D-i, E-iv
  • A-x, B-v, C-iii, D-i, E-v
Photosensitive pigment is
  • Similar in all eyes
  • Different in all eyes
  • Similar in all vertebrate eyes
  • Red in all eyes
If parasympathetic nerve of the rabbit is cut, then heart beat
  • Remains unaffected
  • Decreases
  • Increases
  • Stops
Which of the following is an example of the action of the autonomous nervous system?
  • Pupillary reflex
  • Knee Jerk response
  • Peristalsis of the intestines
  • All of the above
Which of the following two systems are opposite in action to each other?
  • Nervous - Sensory
  • Nervous - Endocrine
  • Sensory - Endocrine
  • Parasympathetic - Sympathetic
Maximum refraction of light takes place at 
  • Cornea
  • Lens
  • Iris
  • Aqueous humour
After sympathetic stimulation, which type of activities are not present in a human being?
  • Tachycardia
  • Bronchodilation
  • Micturition
  • Semen ejaculation
Which pigment helps some nocturnal animal to see at night?
  • Haemoglobin
  • Porphyrin
  • Guanine
  • Heparin
Retina of the vertebrate eye consists of 
  • Neurons and neuroglia
  • Rods, cones, neurons and neuroglia
  • Rods, cones and neuroglia
  • Rods and cones
Lateral rectus muscle of the eye is served by which cranial nerve?
  • Oculomotor
  • Facial
  • Abducens
  • Spinal accessory
In a myelinated neuron, two adjacent myelin sheaths are separated by gaps called as_________________.
  • Nodes of Ranvier
  • Synaptic cleft
  • Synaptic knob
  • Neural plate
If the source of the light in front of the eye suddenly becomes more bright 
  • Pupil contracts
  • Focus of lens changes
  • Vitreous humour becomes liquid like
  • Retinal blood supply is cut-off
ANS affects the
  • Reflex actions
  • Sensory organs
  • Internal organs
  • None of the above
Which one of the following pairs of structures distinguishes a nerve cell from other types of cell?
  • Vacuoles and fibres
  • Flagellum and medullary sheath
  • Nucleus and mitochondria
  • Perikaryon and dendrites
Synaptic vesicles are found in  ______
  • Presynaptic neuron
  • Post synaptic neuron
  • Synaptic cleft
  • None of the above
The one way or unidirectional transmission of nerve cells is due to 
  • Synapses
  • Myelin sheath
  • Membrane polarity
  • Interneurons
Synaptic delay lasts for average of
  • 0.1 ms
  • 0.3 ms
  • 0.4 ms
  • 0.5 ms
The external ears of mammals 
  • Are also called pinnae
  • Are absent in monotremes
  • Can be moved in various direction by many mammals
  • All of the above
All of the following bones provide support and protection to body parts, which bone is different in its function?
  • Ribs
  • Atlas vertebra
  • Malleus
  • Radius
How many oblique and rectus muscles are found to move the eye ball in various direction inside the eye orbit? 
  • Two
  • Four
  • Six
  • Eight
Lens and retina of vertebrate eye develop from 
  • Mesoderm
  • Ectoderm
  • Endoderm
  • Partly from ectoderm and partly from endoderm
The ear ossicles of rabbit lie in the 
  • Auditory capsules
  • External auditory meatus
  • Tympanic cavity
  • Tympanic bulla
Pigmented connective tissue in rabbit occurs in 
  • The eyelids
  • The choroid of eye
  • The adipose tissue of skin
  • The choroid and iris of eye
The nictitating membrane of rabbit is 
  • Also called as third eye lid
  • Situated in the inner corner of the eye
  • Movable across the eye ball to clean it
  • All of the above
Eye is most sensitive to 
  • 20 $$\mathring { A }$$ light 
  • 1000 $$\mathring { A }$$ light 
  • 5000 $$\mathring { A }$$ light
  • 7000 $$\mathring { A }$$ light
Fenestra ovalis is the opening of 
  • Cranium
  • Tympanum
  • Tympanic cavity
  • Brain
In man, the muscles which move the pinnae are 
  • Absent
  • Vestigial
  • More functional
  • None of the above
Choose the correct answer from the alternatives given.
Integration is the
  • Self-propagation of ion flow along a neuron
  • Trigger that releases neurotransmitters
  • Summation of signals acting at all synapses on a neuron
  • Collection of all information about several stimuli
In the eyes, the image formed on the retina is 
  • Erect and real
  • Erect and virtual
  • Inverted and real
  • Inverted and virtual
A circular canal which is found in the limbus part of the eyes is called as
  • Hyaloid canal
  • Canal of Schlemm
  • Canal of Cloquet
  • Eustachian tube
For the synthesis of rhodopsin, which of the following food is needed?
  • Mango
  • Rice
  • Carrot
  • Tomatoes
In frog, eyelids are 
  • Functional
  • Non-functional
  • Absent
  • None of the above
In man, the nictitating membrane is 
  • Absent
  • Vestigial
  • Non-functional
  • Functional
In the rabbits, the muscles which move the pinnae are 
  • Absent
  • Vestigial
  • Non-functional
  • Functional
The part of rabbit's eye which acts like diaphragm of camera is 
  • Pupil
  • Iris
  • Lens
  • Cornea
Pecten is a comb like structure found in the eyes of 
  • Amphibians
  • Reptiles
  • Birds
  • Mammals
Between malleus and incus, the joint found is
  • Incudomalleolar joint
  • Gliding joint
  • Pivot joint
  • None of the above
In frog, the eyes are
  • Myopic on land
  • Hypermetropic in water
  • Bulging
  • All of the above
Guanine pigment is present in
  • Tapetum lucidum
  • Tapetum fibrosum
  • Tapetum cellulosum
  • All of the above
The simplest form of nervous system found in cnidarians is called as
  • Nerve-trunk system
  • Ladder system
  • Nerve-net system
  • Nerve-cord system
A diagram showing axon terminal and synapse is given. Identify correctly at least two of A-C.
309610_fcc5b1004ea1456094d3f34b81af5333.png
  • A- Receptor, C- Synaptic vesicles
  • B- Synaptic connection, C- $$K^{+}$$
  • A- Neurotansmitter, B- Synaptic cleft
  • C- Neurotransmitter, B- $$Ca^{++}$$
The sound vibrations are finally exhausted in
  • Organ of Corti
  • Fenestra rotundus
  • Fenestra ovalis
  • Tympanic membrane
When a person do not have green cones, then the condition is called as
  • Tritanopes
  • Protanopes
  • Deuteranopes
  • Trichromates
Sclerotic, choroid and retina are the layers of
  • Intestine
  • Eye
  • Stomach
  • Oesophagus
In frog, the auditory nerve arises from
  • Medulla
  • Pharynx
  • Internal ear
  • Tongue
Which of the following in rabbit's eyes is responsible for frictionless blinking?
  • Lachrymal glands
  • Meibomian gland
  • Harderian gland
  • All of the above
Junction between two neurons is called-
  • Cell junction
  • Neuro muscular junction
  • Neural junction
  • Synapse
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