Respiration involves _______?
General Science / General Science Class 7 MCQs — Multiple-choice practice
سانس میں _______ شامل ہے؟
- A. Only Mechanical Process
- B. Mechanical and Biochemical processes
- C. Neither Mechanical nor Biochemical Process
- D. Only Biochemical Process
Correct answer
Mechanical and Biochemical processes
Explanation
Explanation Respiration involves two main processes: 1. Mechanical Process (Ventilation) : Breathing in (inhalation) Breathing out (exhalation) Movement of air in and out of the lungs 2. Biochemical Process (Respiratory Exchange) : Exchange of oxygen and carbon dioxide between the lungs and blood Transport of oxygen and carbon dioxide through the bloodstream Cellular respiration (cellular metabolism)
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