Q1 of 5 Page 64

Smoking is suicide and murder at the same time. Prepare a poster for the Health Club of your school based on the above statement.


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1

Reason for the diffusion of oxygen from alveoli to blood.

 2

Observe the two reactions given below.

Reaction 1 C6H12O6 + 6O26CO2 + 6H2O + Energy


Reaction 2 6CO2 + 6H2O C6H12O6 + 6O2


a) Identify the process occurring in plants and in animals.


b) Which is the process that takes place only in plants?

3

Explain the role played by haemoglobin in the transportation of oxygen and carbon dioxide.

 2

Interview a medical practitioner preparing a questionnaire on the topic 'Increasing Lung Diseases'.