Page 15 - Praktis GO！SCIENCE 5 预备，起！科学5

Science Year 5 Practice 2 Humans
(a) Name X, Y and Z.

(i) X :
(ii) Y :

(iii) Z :
(b) Match according to the correct function.

(i) Protects the lungs and the heart X
预备，起！科学5, 版权所有·侵权必究
(ii) Pumps blood to the whole body Y

(iii) A place of exchange between oxygen and carbon dioxide gases Z

2. Diagram 2 shows the human blood circulatory system.

Lungs
Blood vessel K Blood vessel M
Heart
Blood vessel L Blood vessel N
Whole body

Diagram 2
(a) Which blood vessels transport blood rich in oxygen and blood rich in carbon dioxide?
(i) Blood rich in oxygen

(ii) Blood rich in carbon dioxide

(b) Which blood vessels transport pumped blood

(i) from the heart?

(ii) to the heart?

(c) If the blood vessels K and M are blocked, what would happen? KBAT Analysing

17 © Penerbitan Pelangi Sdn. Bhd.

02 Practice Go Science Yr5.indd 17 29/09/2021 9:17 AM