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Science Year 5 Practice 2 Humans

HOTS Practice

1. (a) Trachea is a part of the respiratory system,
whereas oesophagus is a part of digestive
system. Diagram 1 shows an emergency
situation. Piece of Oesophagus
(i) Why the situation above is described as an food
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emergency situation?
Trachea
Diagram 1
(ii) How can this situation happen?

(iii) How does the piece of food can be removed from the trachea?

(iv) What would happen if the piece of food cannot be removed from the trachea?

(b) Diagram 2 shows a lung cancer in a human body. Lungs
Which of the following is the cause of lung cancer?
Choose the right answers.

Tumor
Diagram 2

(i) (ii)

(iii) (iv)

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02 Practice Go Science Yr5.indd 18 29/09/2021 12:00 PM