CBSE Class 10 Sample Paper Science Solution - For 2023 Boards

Class 10
Solutions to CBSE Sample Paper - Science Class 10

How is the mode of action in beating of the heart different from reflex actions? Give four examples.



The difference between the action of a beating heart and reflex action is given in the following table:

Beating of a heart

Reflex Actions

Involuntary action that cannot be controlled by will

Reflex actions are actions which occur in sudden response to stimulus .

It does not require any stimulus to work. 

Require the occurrence of stimuli

Regulated by the brain

Regulated by the spine

Do not involve the use of Skeletal Muscles .

Use Skeletal Muscles .

Performed throughout the course of one’s life .

Are performed in response to stimulus in cases of emergency

Can be quick or slow

Reflex actions are always quick .


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CA Maninder Singh is a Chartered Accountant for the past 13 years and a teacher from the past 17 years. He teaches Science, Economics, Accounting and English at Teachoo