Single Answer MCQ
Q-00002126
Explain the concept of reflex action with a suitable example.
1
Reflex action is a voluntary response to a stimulus
2
Reflex action is an involuntary response to a stimulus
3
Reflex action involves decision-making by the brain
4
Reflex action is a slow process
Answer and Solution
Answer
B. Reflex action is an involuntary response to a stimulus
Solution:
Reflex action is an involuntary and rapid response to a stimulus that helps protect the body from harm. An example is the knee-jerk reflex, where tapping the knee causes the leg to kick involuntarily. This response occurs without conscious thought. Therefore, the correct answer is 'Reflex action is an involuntary response to a stimulus'.
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