Free Neural Control And Coordination (Daily Quiz: 2) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Free Neural Control And Coordination (Daily Quiz: 2) Time:

Question-1

Which of the following lacks a neural system?

(a)

(b)

(c)

(d)


Question-2

The figure shows an axon terminal and synapse. Select the option giving correct identifications of tables A-D

neural-control-and-coordination-class-11-Chapter-21-neet-mcq-6-472-16

(a)

(b)

(c)

(d)

Explanation:

Answer: (d)

In the given figure, A, B, C and D are axon, neurotransmitters, receptors and synaptic vesicles respectively.


Question-3

Which one of the following is the correct difference between rod cells and cone cells of our retina?
(b)
  Red CellsCone Cells
(a)DistributionMore concentrated in centre of retinaEvenly distributed all over retina
Visual activityHighLow
(c)Visual pigment containedIodopsinRhodopsin
(d)Over all functionVision in poor lightColour vision and detailed vision in bright light

(a)

(b)

(c)

(d)


Question-4

Injury localized to the hypothalamus would most likely disrupt

(a)

(b)

(c)

(d)

Explanation:

Answer: (d)

Hypothalamus lies at the base of the thalamus. It provides anatomical connection between the nervous and endocrine systems by its relationship to the pituitary gland. Hypothalamus is thermoregulatory centre. Hence, it is called "thermostat" of the body. It keeps body temperature at roughly 37°C by means of a complex thermostat system. Any localised injury to hypothalamus will, hence, disrupt regulation of body temperature.


Question-5

Match the given terms in column I with its definition given in column II and choose the correct options.
Column I (Terms) Column II (Definition)
A. Semi-circular canalI. Spiral organ of Corti
B. VestibuleII. Fluid found in the scala vestibule and scala tympani
C. CochleaIII. Evaluates rotational motion
D. PerilymphIV. Fluid found within the organ of Corti
E. EndolymphV. Responds to gravity and movements of the head
Codes:

(a)

(b)

(c)

(d)

Explanation:

Answer: (b)

Semi-circular canal is interconnected tubes located inside each ear. They are lined with cilia and filled with a fluid known as endolymph. With every movement of head the endolymph moves the cilia. This works as a type of motion sensor, as the movements of the cilia are communicated to the brain. The vestibule is the central part of the osseous labyrinth and responds to gravity and movements of head. Cochlea is the auditory portion of the inner ear. It is a spiral-shaped cavity in the bony labyrinth. Perilymph is an extracellular fluid located within the cochlea (part of the inner ear) in two of its three compartments: the scala tympani and scala vestibuli. The major cation (positively charged ion) in perilymph is sodium. Endolymph is the fluid contained in the membranous labyrinth of the inner ear.


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