Malini Sheshdari Solutions for Chapter: Respiration in Organisms, Exercise 2: STEP UP
Malini Sheshdari Science Solutions for Exercise - Malini Sheshdari Solutions for Chapter: Respiration in Organisms, Exercise 2: STEP UP
Attempt the practice questions on Chapter 10: Respiration in Organisms, Exercise 2: STEP UP with hints and solutions to strengthen your understanding. CONCERT Science 7 solutions are prepared by Experienced Embibe Experts.
Questions from Malini Sheshdari Solutions for Chapter: Respiration in Organisms, Exercise 2: STEP UP with Hints & Solutions
What is the man wearing over his mouth and nose? Why is it useful?
The following table compares the characteristics of inhaled and exhaled air. Place a in the appropriate column or columns.
| Inhaled air | Exhaled air | |
|---|---|---|
| Contains 21% oxygen | ||
| Contains 4.4% carbon dioxide | ||
| Contains moisture | ||
| Matches the outside temperature | ||
| Matches the body temperature | ||
| Contains 78% nitrogen |
How does oxygen in the lungs reach the other parts of the body?
Divers carry diving cylinders filled with gas on their backs when they go underwater. Why do mountaineers carry similar tanks with them while ascending a mountain?
What are spiracles? What is their function?
Why do fish seem to open and shut their mouth while in water?
Which part or parts of a plant take in oxygen from the air?
Why do gardeners loosen the soil around the roots of plants?
