MP Board · Class 7 · Science · Respiration in OrganismsWhat is the average breathing rate of an adult human at rest per minute?
Step-by-Step Solution
An adult human at rest breathes in and out 15 to 18 times per minute. During heavy exercise, this rate can increase significantly up to 25 times or more.
Detailed Options Breakdown
Option : 9 to 12 times
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Respiration in Organisms.
Option 1: 15 to 18 times (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 2: 30 to 40 times
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Respiration in Organisms.
Option 3: 70 to 80 times
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Respiration in Organisms.
💡 Study Guide: This question tests core syllabus concepts from Respiration in Organisms. For formulas, key summaries, and mock exam reference guides, read the full Respiration in Organisms Revision Notes.