Class 5 Breathe in Breathe out Question Answer

Class 5 Breathe in Breathe out Question Answer

Class 5 Breathe in Breathe out Question Answer | Grade 5 Science Question Answers | for all the students to prepare for homework and exams..


Fill in the blanks:

  1. The openings in the nose are called ………
  2. There is a passage in the nose behind the nostrils called the ……
  3. The lungs are protected by the ………
  4. There is a sheet of muscles below the lungs which is called ………….
  5. The process of breathing in air is called …………
  6. The process of breathing out air is called …………..
  7. The lungs contain many tiny bag-like structures called ………..


  1. Nostrils
  2. Nasal passage
  3. Ribcage
  4. Diaphragm
  5. Inhalation
  6. Exhalation
  7. Air sacs

Breathe in Breathe Out MCQ

Q- We breathe in

  • Oxygen
  • Nitrogen
  • Carbon dioxide


Q- The lungs are protected by…………

  • Ribcage
  • Diaphragm
  • Windpipe


Q- It is a muscular organ that pumps blood throughout the body.

  • Lungs
  • Heart
  • Windpipe


Q- When we breathe out air, it is called…………….

  • Inhalation
  • Exhalation


Q- The rate of breathing of an adult is about ………….times per minute.

  • 16
  • 40
  • 72

Answer the following questions

[Question] What do you mean by the term breathing?

Answer: Breathing is a simple physical process involving a gaseous exchange between the organism and its surroundings.


[Question] Explain the process of exhalation.

Answer: When we breathe in air, the diaphragm moves down and the lungs become large .when we breathe out air, the diaphragm relaxes and moves up, pushing the air out from the lungs. this process of breathing air is called exhalation.


[Question] What are the organs of respiratory organs?

Answer: The organs of the respiratory system include the nose, windpipe, and lungs.


[Question] What is the function of the heart?

Answer: The heart pumps blood to each body part. blood carries oxygen to all parts of the body and carries back carbon dioxide to the lungs.


[Question] What is a stethoscope?

Answer: A stethoscope is an instrument a doctor uses to listen to the sound of our heartbeat.



Updated: August 7, 2022 — 11:33 pm

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