Class 10 Science Chapter 7 Control And Coordination of Page 105

Q1: What is the difference between a reflex action and walking?

Answer:

A reflex action is an involuntary action that is a rapid and automatic response to stimuli. Walking is a voluntary action, which requires our thinking and is within our control.

Q2: What happens at the synapse between two neurons?

Answer:

At the junction between two neurons (synapse), an action potential causes neuron A to release a chemical neurotransmitter. The neurotransmitter can either help (excite) or hinder (inhibit) neuron B from firing its own action potential.

Q3: Which part of the brain maintains posture and equilibrium of the body?

Answer:

Cerebellum, part of the Hindbrain is responsible for maintaining posture and equilibrium of the body.

Q4: How do we detect the smell of an agarbatti (incense stick)?

Answer:

Smell of an incense stick is detected by the olfactory receptors present in the nose. The receptors send the signal to the olfactory lobe present in the fore-brain where it is analyzed and reacted upon.

Q5: What is the role of the brain in reflex action?

Answer:

The brain is not involved in a reflex action as it is an involuntary action that does not require thinking.

Control and Coordination is about control mechanisms and movement in organisms. This article includes free NCERT Solutions for Class 10 Science Chapter 7 Control And Coordination, developed by the top Biology experts at GFG, according to the latest CBSE Syllabus 2023-24 and guidelines.

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