MEDIUM
Lower Secondary Stage 8
IMPORTANT
Earn 100

How are ciliated epithelial cells adapted for their function?

Important Questions on Respiration and Circulation

MEDIUM
Lower Secondary Stage 8
IMPORTANT
Cambridge Lower Secondary Science Stage 8 : Student's book>Chapter 2 - Respiration and Circulation>Exercise 19>Q 2
What other specialised cells are needed to keep the lungs clean?
MEDIUM
Lower Secondary Stage 8
IMPORTANT
Cambridge Lower Secondary Science Stage 8 : Student's book>Chapter 2 - Respiration and Circulation>Exercise 20>Q 3
In the lungs of a smoker, why do the cilia stop working?
MEDIUM
Lower Secondary Stage 8
IMPORTANT
Cambridge Lower Secondary Science Stage 8 : Student's book>Chapter 2 - Respiration and Circulation>Exercise 20>Q 4
Explain why long-term smokers are more likely to get lung infections. 
MEDIUM
Lower Secondary Stage 8
IMPORTANT
Cambridge Lower Secondary Science Stage 8 : Student's book>Chapter 2 - Respiration and Circulation>Exercise 20>Q 5
Coughing, and the substances in the smoke can destroy alveoli. This causes people to feel breathless because of poor gaseous exchange. Explain why the destruction of alveoli causes poor gaseous exchange.
MEDIUM
Lower Secondary Stage 8
IMPORTANT
Cambridge Lower Secondary Science Stage 8 : Student's book>Chapter 2 - Respiration and Circulation>Exercise 20>Q 6
Describe one instant effect that nicotine has on your body. 
MEDIUM
Lower Secondary Stage 8
IMPORTANT
Cambridge Lower Secondary Science Stage 8 : Student's book>Chapter 2 - Respiration and Circulation>Exercise 20>Q 6
Explain how nicotine damages the circulatory system with time. 
MEDIUM
Lower Secondary Stage 8
IMPORTANT
Cambridge Lower Secondary Science Stage 8 : Student's book>Chapter 2 - Respiration and Circulation>Exercise 20>Q 7
What is a cancer tumour?
MEDIUM
Lower Secondary Stage 8
IMPORTANT
Cambridge Lower Secondary Science Stage 8 : Student's book>Chapter 2 - Respiration and Circulation>Exercise 20>Q 8

Lung tissue is pink. Why is the tissue not pink in the lung given in the below picture?

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