Gemma Young and Mark Levesley Solutions for Exercise 29: End of chapter review

Author:Gemma Young & Mark Levesley

Gemma Young Science Solutions for Exercise - Gemma Young and Mark Levesley Solutions for Exercise 29: End of chapter review

Attempt the free practice questions from Exercise 29: End of chapter review with hints and solutions to strengthen your understanding. Cambridge Lower Secondary Science Stage 8 : Student's book solutions are prepared by Experienced Embibe Experts.

Questions from Gemma Young and Mark Levesley Solutions for Exercise 29: End of chapter review with Hints & Solutions

EASY
Lower Secondary Stage 8
IMPORTANT

Describe the functions of platelets. 

EASY
Lower Secondary Stage 8
IMPORTANT

Which parts of your respiratory system move to make your chest volume increase?

MEDIUM
Lower Secondary Stage 8
IMPORTANT

Explain why air flows into your lungs when your chest volume increases?

MEDIUM
Lower Secondary Stage 8
IMPORTANT

A student breathes in and out 7 times in 30 seconds. Calculate the breathing rate. 

MEDIUM
Lower Secondary Stage 8
IMPORTANT

Draw a labelled diagram to explain how specialised cells in the tubes of your lungs to keep them clean.

MEDIUM
Lower Secondary Stage 8
IMPORTANT

Explain what happens if the specialised cells in the tubes of our respiratory system stop working. 

MEDIUM
Lower Secondary Stage 8
IMPORTANT

Carbon monoxide is a poisonous gas. It sticks to haemoglobin. This stops other substances from sticking to haemoglobin. One of the early symptoms of carbon monoxide poisoning is an increase in breathing rate. Explain this symptom. 

MEDIUM
Lower Secondary Stage 8
IMPORTANT

An increase in temperature increases the speed of diffusion. Explain why plants are more likely to wilt in very hot weather.