7Class - Science - Respiration in Organisms

The process which involves the exchange of gases is called _________

• Respiration
• Circulation
• Digestion
• Breathing

During inspiration air passes into lungs due tp

• Increased volume of thoracic cavity
• Fall in pressure inside the lungs
• Increased volume of thoracic cavity & Fall in pressure inside the lungs
• Muscular expanstion of lungs

Roots respire through __________

• Spiracles
• Lenticles
• Stomata
• Air spaces

Which animal breath through skin and lungs

• Fish
• Frog
• Snake
• Earthworm

What happens to lime water, when we exhale air into it?

• Remains same
• Turns blue
• Turns milky
• Becomes colourless

Plants respire through ___________

• Cells
• Stomata
• Gills
• Cell membrane

The respiratory organs in cockroach are

• Lungs
• Gills
• Lenticles
• Spiracles

The process of breathing in air is called _________

• Inspiration
• Expiration
• Breathing
• No answer

The process of breathing out air is called _________

• Inspiration
• Expiration
• Breathing
• No answer

Plants use this gas during respiration

• Nitrogen
• Carbon dioxide
• Oxygen
• Hydrogen