Karnataka 1st PUC Biology Chapter 18 Important Questions

Neural Control and Coordination can be challenging in Karnataka 1st PUC Biology because the chapter includes several terms, processes and functions that need clear understanding and repeated revision. Topics such as nerve impulses, synapses, reflex actions, brain functions and sensory organs can be difficult to remember when you rely only on textbook reading. Without question practice, it may also be harder to identify important concepts and improve answer accuracy.

Karnataka 1st PUC Biology Chapter 18 Important Questions provide focused practice on Neural Control and Coordination. Solving questions on neurons, action potential, neurotransmitters, reflexes, vision, hearing and equilibrium can help you revise key concepts, strengthen recall and prepare more effectively for the examination.

Important Questions for Karnataka 1st PUC Biology Chapter 18 

The following questions cover important concepts from Neural Control and Coordination. Practise them without referring to your notes first and review the concepts afterwards to identify areas that require further revision.

1. Cell bodies of neurons bringing afferent information into the spinal cord are located in:

(A) Dorsal root ganglia
(B) Ventral root ganglia
(C) Gray matter of the spinal cord
(D) White matter of the spinal cord

2. A typical value of resting membrane potential is:

(A) −90 mV
(B) −70 mV
(C) −40 mV
(D) −60 mV

3. Human body temperature is maintained by:

(A) Hypothalamus
(B) Medulla oblongata
(C) Pituitary
(D) Cerebral cortex

4. The vagus nerve is which cranial nerve?

(A) 7th
(B) 5th
(C) 10th
(D) 9th

5. The junction between the axon of one neuron and the dendrite of the next is called:

(A) Constant bridge
(B) Junction point
(C) Joint
(D) Synapse

6. During the propagation of a nerve impulse, the action potential results from the movement of:

(A) K⁺ ions from intracellular fluid to extracellular fluid
(B) Na⁺ ions from extracellular fluid to intracellular fluid
(C) K⁺ ions from extracellular fluid to intracellular fluid
(D) Na⁺ ions from intracellular fluid to extracellular fluid

7. Which of the following is an example of a conditioned reflex?

(A) Hand withdraws when pierced with a needle
(B) Eyes close when anything enters into them
(C) Food moves forward in alimentary canal during digestion
(D) Trained dog salivates when a bell is rung

8. Unidirectional transmission of a nerve impulse through a nerve fibre is due to:

(A) Insulation by a medullary sheath
(B) Sodium pump operating only at the cyton
(C) Neurotransmitters being released by dendrites and not by axon endings
(D) Neurotransmitters being released by axon endings and not by dendrites

9. Parkinson's disease is caused by degeneration of brain neurons that make use of which neurotransmitter?

(A) Acetylcholine
(B) Norepinephrine
(C) Dopamine
(D) GABA

10. An area in the brain which is associated with strong emotions is:

(A) Cerebral cortex
(B) Cerebellum
(C) Limbic system
(D) Medulla

11. Which vitamin is present in rhodopsin?

(A) Vitamin A
(B) Vitamin B
(C) Vitamin C
(D) Vitamin D

12. The part of the internal ear responsible for hearing is:

(A) Cochlea
(B) Semicircular canal
(C) Utriculus
(D) Sacculus

13. Which of the following is NOT involved in the knee-jerk reflex?

(A) Muscle spindle
(B) Motor neuron
(C) Brain
(D) Interneurons

14. Broca's area is connected with:

(A) Learning and reasoning
(B) Speech function
(C) Receiving impulses from eyes
(D) Sensation of smell

15. Static equilibrium is maintained by:

(A) Utriculus
(B) Sacculus
(C) Both (A) and (B)
(D) Semicircular canals

Karnataka 1st PUC Biology Chapter 18 Questions PDF

The Neural Control and Coordination Chapter 18 questions provide focused practice after completing the chapter. Use them for repeated revision and attempt the questions without checking your notes to assess your understanding and recall.

For broader Biology paper practice, the Biology Model Question Paper can help you understand the question format and practise answering within the examination pattern.

How to Prepare Neural Control and Coordination for Karnataka 1st PUC Biology

Neural Control and Coordination covers several biological processes, structures and functions. Focus on understanding key concepts, revising diagrams and practising questions regularly.

• Understand Neurons and Nerve Impulses

Study the structure and functions of dendrites, the cell body and axon. Revise resting potential, action potential, depolarisation, repolarisation and the role of sodium and potassium ions.

• Revise the Nervous System

Study the central and peripheral nervous systems, including the brain, spinal cord and cranial nerves. Keep the Karnataka Board Class 11 Biology syllabus handy to align your revision with the prescribed topics.

• Focus on Reflex Actions

Understand reflex and conditioned reflexes, along with the pathway of a reflex arc. Practise questions on sensory neurons, interneurons and motor neurons.

• Revise Sensory Organs and Diagrams

Focus on the major parts and functions of the eye and ear. Practise labelled diagrams and revise rhodopsin, the cochlea, utriculus, sacculus and semicircular canals.

• Practise Questions as per the Exam Pattern

Solve different question types and review your mistakes. The Karnataka 1st PUC Exam Pattern can help you understand the marks distribution and question formats.

• Solve Previous Question Papers

Practise previous examination questions to assess your preparation and identify topics that need more revision. The Karnataka 1st PUC Mid Term Question Papers offer additional practice from the prescribed syllabus.

Regular practice can make Neural Control and Coordination easier to revise by improving your understanding of nerve impulses, nervous system functions, reflex actions and sensory organs. Solve these important questions after studying the chapter, review your mistakes and revisit difficult concepts. Repeated practice can help improve accuracy and confidence in Karnataka 1st PUC Biology.