Page 35 - Praktis GO！SCIENCE 5 预备，起！科学5

Science Year 5 Answers

Practice 2 Humans C 1. lungs
2. blood rich in oxygen
2.1 Human Skeletal System 3. blood rich in carbon dioxide
4. lungs, exhale
A D 1. Transports oxygen, nutrients and water into body
2. Transports carbon dioxide and waste materials to be
J B removed from body
Relationship between the Systems in the Human
B Body
B 2.3
A 1. Skeletal system
J
B 2. Respiratory system
3. Digestive system
J 4. Blood circulatory system
B 1. to the whole body
B 2. carbon dioxide from the body
J 3. bone growth.
4. respiratory and blood circulatory organs such as lungs
B and heart.
5. digestive system.
6. nutrients to organs such as the heart to continue to
J
function.
C 1. The digestive system is disturbed in the oesophagus.
B 1. Skull
2. Rib The trapped food will cause breathing diff culties and
disturbs respiratory system.
3. Backbone
4. Hand bone 2. Chew food slowly and avoid swallowing large size and
hard food.
5. Leg bone

D 1. ✓
C 1. Rib 预备，起！科学5, 版权所有·侵权必究
2. Skull 2. ✗
3. Rib 3. ✓
4. ✓
2.2 Human Blood Circulatory System 5. ✓
6. ✗
A 1. Lungs
2. Heart Reinforcement
3. Human body Practice 2
B Objective Questions

1. D 2. A 3. B 4. A 5. C
6. C 7. A 8. D 9. C
Subjective Questions
Lungs
1. (a) (i) Lungs
(ii) Rib
(iii) Heart
(b) (i) Y
(ii) Z
(iii) X
2. (a) (i) M and N
(ii) L and K
(b) (i) K and N
Heart
(ii) L and M
(c) Blood rich in carbon dioxide cannot be sent to the lungs
to transport more oxygen to the heart and whole body.

Human body

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12 Answer Practice Go Science Yr5.indd 2 24/09/2021 5:31 PM