NEET  >  Biology Class 11  >  31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 Download as PDF

31 Years NEET Previous Year Questions: Neural Control & Coordination - 2


Test Description

25 Questions MCQ Test Biology Class 11 | 31 Years NEET Previous Year Questions: Neural Control & Coordination - 2

31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 for NEET 2022 is part of Biology Class 11 preparation. The 31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 questions and answers have been prepared according to the NEET exam syllabus.The 31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 MCQs are made for NEET 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for 31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 below.
Solutions of 31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 questions in English are available as part of our Biology Class 11 for NEET & 31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 solutions in Hindi for Biology Class 11 course. Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free. Attempt 31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 | 25 questions in 25 minutes | Mock test for NEET preparation | Free important questions MCQ to study Biology Class 11 for NEET Exam | Download free PDF with solutions
1 Crore+ students have signed up on EduRev. Have you?
31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 1

When we migrate from dark to light, we fail to see for sometime but after a time visibility becomes normal. It is an example of [2001]

Detailed Solution for 31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 1

It takes some time for rhodopsin to split into scotopsin and retinal (bleaching) and release of transmitter passing nerve impulse via bipolar and ganglion cells to the optic nerves. This is a case of adaptation. It differs from accommodation which is a reflex mechanism by which the focus of the eye change to make the images of distant and near objects sharp on the retina.

31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 2

What is intensity of sound  in normal conversation? [2001]

Detailed Solution for 31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 2

The word noise is taken from the latin word nausea  and is defined as unwanted  or unpleasant  sound that causes  discomfort.

31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 3

Neuroglia consist of cells found in the[1999]

Detailed Solution for 31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 3

Neuroglia are non-nervous cells present- along with and in between the neurons in central nervous system, ganglia and retina. They have roles like myelin formation, transport of materials  to neurons, maintenance of ionic balance and phagocytosis.

31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 4

Suspensory ligament is part of [1999]

Detailed Solution for 31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 4

Stretching and relaxation of suspensory ligament changes the focal length of lens for accommodation.

31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 5

In vertebrates, simple reflex action is [1999]

Detailed Solution for 31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 5

A reflex action is a nerve mediated spontaneous, automatic and involuntary response to a stimulus acting through specific receptors without consulting the will of the animal.

31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 6

Anesthetics reduce pain by blocking the transmission of nerve impulses. The kind of chemicals working as anesthetics are those that block [1998]

Detailed Solution for 31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 6

In this manner, they block transmission of nerve impulse.

31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 7

In the chemistry of vision in mammals, the photosensitive substance is called [1997]

Detailed Solution for 31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 7

Rhodopsin is a biological pigment present in the rod of the retina and it is light sensitive protein belongs to GPCR family proteins. Rhodopsin is extremely sensitive to light, and when exposed to light it undergoes into immediate photobleaching and gives vision in low-light conditions.

31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 8

The Nissl’s granules of nerve cells are made up of [1997, 03]

Detailed Solution for 31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 8

Prominent granules (Nissl’s granules) observed in the cytoplasm of the cyton are believed to be made of ribosomes.
A Nissl body (or Nissl granule or tigroid body) is a large granular body found in nerve cells. It was named after Franz Nissl, German neurologist (1860-1919). Nissl bodies can be demonstrated by selective staining, which was developed by Nissl and the stain used was an aniline stain to label extranuclear RNA granules.These granules are rough endoplasmic reticulum (with ribosomes) and are the site of protein synthesis.Nissl bodies show changes under various physiological conditions and in pathological conditions they may dissolve and disappear (karyolysis).

31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 9

Cornea transplantation is outstandingly successful because [1996]

Detailed Solution for 31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 9

Cornea transplants are easy, since there are no blood vessels involved.

31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 10

In humans, visceral organs are innervated by[1996]

Detailed Solution for 31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 10

The activities of all visceral organs are coordinated  through the regulation of  their smooth muscles  and glands by the nerve fibres of the sympathetic and parasympathetic nervous system. These constitute the autonomic nervous system which carry out functions that are not under the control of our will. 

31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 11

The sympathetic nerves in mammals arise from[1995]

Detailed Solution for 31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 11

In mammals, the sympathetic nerves arise from thoraco-lumbar nerves (autonomic nervous system).

31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 12

Respiratory centre is situated in [1994]

Detailed Solution for 31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 12

Respiratory centre is situated bilaterally in medulla oblongata, while breathing is controlled by pneumotaxic and apneustic centres in pons varolii. Impulse for voluntary forced breathing starts in cerebral hemisphere.

31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 13

CNS is mostly made of

[1993]

Detailed Solution for 31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 13

Association neurons.

31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 14

Light rays entering the eye is controlled by [1993]

Detailed Solution for 31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 14

The iris is the ring of pigmented tissue surrounding the pupil that varies in color. The iris opens and closes to control the amount of light entering the eye through the pupil. The pupil is the opening in the center of the iris where light enters the eye. When looking at the eye, the pupil appears black.

31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 15

Retina is most sensitive at [1993]

Detailed Solution for 31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 15

Fovea centralis is the most sensitive part of retina (in fact most sensitive part of the eye). This is the area of most acute vision. Actually it is a small depression present in mammals (not in frog) at macula lutea or yellow spot.

31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 16

Function of iris is to [1993]

Detailed Solution for 31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 16

 Iris controls the size of pupil by contracting or relaxing of its circular muscles. It controls the amount of light entering in eye.

31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 17

Iris is part of [1992]

Detailed Solution for 31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 17

Iris consists of two layers, outer thickened layer is continuation with choroid and inner simple cuboidal epithelium layer continued from retina.

31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 18

Afferent nerve fibres carry impulses from [1992]

Detailed Solution for 31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 18

Afferent nerve fibres – sensory nerve fibres which carry senses from receptors to brain or spinal cord (CNS).
Efferent nerve fibres – motor nerve fibres carry orders or responses from CNS to effectors (muscles and glands).

31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 19

Third ventricle of brain is also known as [1990]

Detailed Solution for 31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 19

It is the cavity of diancephelone which is connected ahead with the lateral ventricles or paracoel of cerebral hemisphere by foramen of Monro & behind with the iter (the duct of 
midbrain). The ventral wall of diocoel in known as hypothalamus.

31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 20

One function of parasympathetic nervous system is [1990]

Detailed Solution for 31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 20

Sympathetic system prepares the body for stress or emergency conditions while parasympathetic system is associated with the period of rest. So when one faces the stress or emergency conditions sympathetic system enlarges the pupil to allow more light in the eye while during rest parasympathetic nervous system constricts  the pupil to its normal condition.

31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 21

Which of the following cranial nerves can regulate heart beat? [1989]

Detailed Solution for 31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 21

Xth pair of cranial nerves (vagus nerves) has a motor branch called cardiac nerve which innervate cardiac muscles.

31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 22

Sensitive pigmented layer of eye is [1989]

Detailed Solution for 31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 22

Retina consists of a pigmented layer and a nervous tissue layer, first there is the photoreceptor layer containing photosensitive cells, the rods and cones, Rod cells are sensitive towards light and are used for vision in dim light, having no ability to detect colour, whereas cones are used for bright light vision with the ability to make coloured images of the object.  Next is the intermediate layer containing short sensory bipolar neurons. Bipolar cells inturn synapse with the retinal ganglion cells, whose axons bundle together as the optic nerve.

31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 23

Acute vision is present in [1988]

Detailed Solution for 31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 23

Vulture, some other birds and man have acute vision

31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 24

Vagus nerve is

Detailed Solution for 31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 24

Vagus nerve is 10th pair of nerves arising from medulla oblongata of brain. These are mixed nerves i.e. having both sensory as well as motor nerve fibres.

31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 25

Light rays entering the eye is controlled by

Detailed Solution for 31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 - Question 25

Pupil is the opening which controls the amount of light entering in eye. When light intensity is high, it decreases in size and when light intensity is low it dilates to allow more light in the eye to make eye enable to see the object.

299 videos|448 docs|347 tests
Use Code STAYHOME200 and get INR 200 additional OFF
Use Coupon Code
Information about 31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 Page
In this test you can find the Exam questions for 31 Years NEET Previous Year Questions: Neural Control & Coordination - 2 solved & explained in the simplest way possible. Besides giving Questions and answers for 31 Years NEET Previous Year Questions: Neural Control & Coordination - 2, EduRev gives you an ample number of Online tests for practice