NCERT Solutions for Chapter: Respiration in Organisms, Exercise 1: Exercise
NCERT Science Solutions for Exercise - NCERT Solutions for Chapter: Respiration in Organisms, Exercise 1: Exercise
Attempt the practice questions on Chapter 10: Respiration in Organisms, Exercise 1: Exercise with hints and solutions to strengthen your understanding. Science Textbook of Competency Based Questions for Class VII solutions are prepared by Experienced Embibe Experts.
Questions from NCERT Solutions for Chapter: Respiration in Organisms, Exercise 1: Exercise with Hints & Solutions
The reactions below show two types of respiration.
i) glucose carbon dioxide + water + energy
ii) glucose carbon dioxide + alcohol + energy
What causes the reactions to be different?

Which of these animals breathes through its skin?

The table shows the chest measurement in four students during inhalation and exhalation.
Breathing | Chest measurement | |||
------ | Student 1 | Student 2 | Student 3 | Student 4 |
Inhalation | 62 cm | 58 cm | 60 cm | 65 cm |
Exhalation | 45 cm | 54 cm | 55 cm | 56 cm |
Chest expansion is the difference in chest sizes during inhalation and exhalation. Which student’s chest expanded the most?

The table shows the chest measurement in four students during inhalation and exhalation.
Breathing | Chest measurement | |||
------ | Student 1 | Student 2 | Student 3 | Student 4 |
Inhalation | 62 cm | 58 cm | 60 cm | 65 cm |
Exhalation | 45 cm | 54 cm | 55 cm | 56 cm |
What should be done to confirm the chest measurements of the four students?

Which of these statements is correct for the respiratory system?

In which beaker will the lime water turn milky first? Explain your answer.

Respiration is a _____ process, whereas breathing is a _____ process.

Which of the following is not true about cellular respiration?
