Class 8 Courses

Chapter 9: Class 8 Science Exam Tests

Class 8 Science MCQs - Chapter 9

Respiration and Circulation Quiz Questions and Answers PDF - 7

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The Quiz: Composition of red blood cells have specialized protein called; "Respiration and Circulation" App (iOS & Android) with answers: Chlorophyll; Iron; Copper; Silver; to learn online schools courses. Study Transport in Human Beings MCQ Questions, download Amazon eBook (Free Sample) for online study.

Respiration and Circulation Questions & Answers PDF Download: MCQ Quiz 7

MCQ 31:

The composition of red blood cells have specialized protein called

  1. iron
  2. chlorophyll
  3. copper
  4. silver
MCQ 32:

The transport system of blood by special organ heart constitutes

  1. circulatory system
  2. respiratory system
  3. digestion system
  4. nervous system
MCQ 33:

The life span of red blood cells is

  1. 2 months
  2. 45 days
  3. 4 months
  4. 12 days
MCQ 34:

Exhaled air is the air which we

  1. breath in
  2. breath out
  3. transport in body
  4. use under water
MCQ 35:

The division of windpipe is done in two

  1. bronchioles
  2. alveoli
  3. nostril
  4. bronchi

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Respiration and Circulation App (Android & iOS)

Respiration and Circulation App (Android & iOS)

8th Grade Science App (Android & iOS)

8th Grade Science App (iOS & Android)

6th Grade Science App (Android & iOS)

6th Grade Science App (Android & iOS)

7th Grade Science App (Android & iOS)

7th Grade Science App (iOS & Android)