Selina solutions

Selina solutions

Grade 6

Respiratory system | Short Answer Questions (SA)

Question 1

Q1) Answer briefly the following:

  1. Why do our body cells require oxygen?
  2. What is the difference between breathing and respiration?
  3. Name the by-product formed during the oxidation of food?
  4. Name the agency which transports oxygen to all parts of the body.
  5. What is the role of epiglottis during swelling?

Solution:

  1. Oxygen is needed for respiration and release of energy. The body gets oxygen through breathing.
  1. Breathing, it is the mechanical process of inhaling and exhaling air. It does not involve any enzymes It involves taking in oxygen and giving out carbon dioxide. Respiration is a complex biochemical process in which enzymes are involved. It involves the oxidation of glucose into carbon dioxide, water and energy.
  1. a) Carbon-dioxide b) Water.
  1. Blood
  1. The epiglottis closes the windpipe at the time of swallowing.

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subject-cta

Question 1

Q1) Answer briefly the following:

  1. Why do our body cells require oxygen?
  2. What is the difference between breathing and respiration?
  3. Name the by-product formed during the oxidation of food?
  4. Name the agency which transports oxygen to all parts of the body.
  5. What is the role of epiglottis during swelling?

Solution:

  1. Oxygen is needed for respiration and release of energy. The body gets oxygen through breathing.
  1. Breathing, it is the mechanical process of inhaling and exhaling air. It does not involve any enzymes It involves taking in oxygen and giving out carbon dioxide. Respiration is a complex biochemical process in which enzymes are involved. It involves the oxidation of glucose into carbon dioxide, water and energy.
  1. a) Carbon-dioxide b) Water.
  1. Blood
  1. The epiglottis closes the windpipe at the time of swallowing.

Still have questions? Our expert teachers can help you out

Book a free class now

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subject-cta
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