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Chapters
2: Kingdom Animalia
3: Tissue Level of Organisation
4: Organ and Organ Systems in Animals
5: Digestion and Absorption
6: Respiration
7: Body Fluids and Circulation
8: Excretion
9: Locomotion and Movement
▶ 10: Neural Control and Coordination
11: Chemical Coordination and Integration
12: Basic Medical Instruments and Techniques
13: Trends in Economic Zoology
![Samacheer Kalvi solutions for Zoology [English] Class 11 TN Board chapter 10 - Neural Control and Coordination - Shaalaa.com](/images/zoology-english-class-11-tn-board_6:5f2b1b2038084cf381bfa42c826a928c.jpg "Samacheer Kalvi solutions for Zoology [English] Class 11 TN Board chapter 10 - Neural Control and Coordination")
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Solutions for Chapter 10: Neural Control and Coordination
Below listed, you can find solutions for Chapter 10 of Tamil Nadu Board of Secondary Education Samacheer Kalvi for Zoology [English] Class 11 TN Board.
Samacheer Kalvi solutions for Zoology [English] Class 11 TN Board 10 Neural Control and Coordination Evaluation [Pages 199 - 201]
Which structure in the ear converts pressure waves to action potentials?
Tympanic membrane
Organ of Corti
Oval window
Semicircular canal
Which of the following pairings is correct?
Sensory nerve - afferent
Motor nerve - afferent
Sensory nerve - ventral
Motor nerve - dorsal
During synaptic transmission of nerve impulse, neurotransmitter (P) is released from synaptic vesicles by the action of ions (Q). Choose the correct P and Q.
P = Acetylcholine, Q = Ca++
P = Acetylcholine, Q = Na+
P = GABA, Q = Na+
P = Cholinesterase, Q = Ca++
Examine the diagram of the two cell types A and B given below and select the correct option.
Cell-A is the rod cell found evenly all over retina
Cell-A is the cone cell more concentrated in the fovea centralis
Cell-B is concerned with colour vision in bright light
Cell-A is sensitive to bright light intensities
Assertion: The imbalance in concentration of Na+, K+ and proteins generates action potential.
Reason: To maintain the unequal distribution of Na+ and K+, the neurons use electrical energy.
Both Assertion and Reason are true and Reason is the correct explanation of the Assertion.
Both Assertion and Reason are true but the Reason is not the correct explanations of Assertion.
Assertion is true, but Reason is false.
Both Assertion and Reason are false.
Which part of the human brain is concerned with the regulation of body temperature?
Cerebellum
Cerebrum
Medulla oblongata
Hypothalamus
The respiratory centre is present in the ______.
Medulla oblongata
Hypothalamus
Cerebellum
Thalamus
Match the following human spinal nerves in column I with their respective number in column II and choose the correct option
| column I | column II |
| P. Cervical nerves | i. 5 pairs |
| Q. Thoracic nerve | ii. 1 pair |
| R. Lumbar nerve | iii. 12 pairs |
| S. Coccygeal nerve | iv. 8 pairs |
(P – iv), (Q – iii), (R – i), (S – ii)
(P – iii), (Q – i), ( R – ii), (S – iv)
(P – iv), (Q – i), (R – ii), ( S – iii)
(P – ii), (Q – iv), (R – i), (S – iii)
The abundant intracellular cation is ______.
H+
K+
Na+
Ca++
Which of the following statements is wrong regarding conduction of nerve impulse?
In a resting neuron, the axonal membrane is more permeable to K+ ions and nearly impermeable to Na+ ions.
Fluid outside the axon has a high concentration of Na+ ions and low concentration of K+, in a resting neuron.
Ionic gradient s are maintained by Na+ K+ pumps across the resting membrane, which transport 3Na ions outwards for 2K+ into the cell.
A neuron is polarized only when the outer surface of the axonal membrane possess a negative a charge and its inner surface is positively charged.
All of the following are associated with the myeline sheath except
Faster conduction of nerve impulses
Nodes of Ranvier forming gaps along the axon
Increased energy output for nerve impulse conduction
Saltatory conduction of action potentia
Several statements are given here in reference to cone cells which of the following option indicates all correct statements for cone cells?
Statements
- Cone cells are less sensitive in bright light than Rod cells
- They are responsible for colour vision
- Erythropsin is a photo pigment which is sensitive to red colour light
- They are present in fovea of retina
(iii), (ii) and (i)
(ii), (iii) and (iv)
(i), (iii) and (iv)
(i), (ii) and (iv)
Which of the following statement concerning the somatic division of the peripheral neural system is incorrect?
Its pathways innervate skeletal muscles
Its pathways are usually voluntary
Some of its pathways are referred to as reflex arcs
Its pathways always involve four neurons
When the potential across the axon membrane is more negative than the normal resting potential, the neuron is said to be in a state of ______.
Depolarization
Hyperpolarization
Repolarization
Hypopolarization
Why is the blind spot called so?
Sam’s optometrist tells him that his intraocular pressure is high. What is this condition called and which fluid does it involve?
The action potential occurs in response to a threshold stimulus; but not at sub-threshold stimuli. What is the name of the principle involved?
Pleasant smell of food urged Ravi to rush into the kitchen. Name the parts of the brain involved in the identification of food and emotional responses to odour.
Cornea transplant in humans is almost never rejected. State the reason.
At the end of repolarization, the nerve membrane gets hyperpolarized. Why?
The choroid plexus secretes cerebrospinal fluid. List the function of it.
What is ANS? Explain the components of ANS.
Why the limbic system is called the emotional brain? Name the parts of it.
Classify receptors based on type of stimuli.
Differentiate between rod and cone cells.
The sense of taste is considered to be the most pleasurable of all senses.
Describe the structure of the receptor involved with a diagram.
Describe the sensory receptors present in the skin.
Solutions for 10: Neural Control and Coordination
Samacheer Kalvi solutions for Zoology [English] Class 11 TN Board chapter 10 - Neural Control and Coordination
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Concepts covered in Zoology [English] Class 11 TN Board chapter 10 Neural Control and Coordination are Human Neural System, Human Neural System, Neuron (Or Nerve Cell) and Its Types, Central Nervous System (CNS), Reflex and Reflex Action, Sensory Reception and Processing.
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