Science Form 3 Chapte 1-2
21 Questions
| Total Attempts: 459
Good luck for students who have to take PMR exam soon~~
Questions and Answers
- 1.1. What is the meaning of inhalation?
- A.
A. process breathing out air.
- B.
B. process breathing in air.
- C.
C. process breaking down food.
- D.
D. process get rid of carbon dioxide.
- 2.2. What is the pathway of inhalation?
- 3.3. Is haemoglobin a pigment?
- A.
True
- B.
False
- 4.4. haemoglobin + oxygen = ________ ( Answer in non capslock )
- 5.5. Where does gaseous exchange takes place?
- A.
A. Stomach
- B.
B. Intestine
- C.
C. Alveoli
- 6.6. During inhalation, what does the ribs happen?
- A.
A. move inwards and downwards.
- B.
B. move upwards and outwards.
- 7.7. During inhalation, what happens to the diaphragm?
- A.
A. contracts and flattens.
- B.
B. relaxes and flattens.
- C.
C. relaxes and curves up.
- D.
D. contracts and curves up.
- 8.8. During inhalation, how is the air pressure in the lungs?
- A.
A. low
- B.
B. high
- 9.9. __________ is the process where gas molecules move from a place where there are many molecules to a place with fewer molecules.
- 10.10. Smoke contains: a.) _________ b.)__________ c.)__________ d.)__________
- 11.11. Our heart has ___ chambers.
- 12.12.3 types of blood vessels: _________,_____________,______________.
- 13.13. Artery carries blood with ________ pressure?
- A.
A. high
- B.
B. low
- 14.14. How thick is the blood capillaries?
- A.
A. as thick as artery's
- B.
B. as thick as vein's
- C.
C. one-cell thick
- 15.15. __________ artery carries deoxygenated blood.
- A.
A. renal
- B.
B. pulmonary
- 16.16. What is the colour of blood with oxygen?
- A.
A. bright red
- B.
B. purplish-red
- 17.17. There are 4 types of blood circulation. Is it true?
- A.
True
- B.
False
- 18.18. Human blood consists of __________, ___________ and __________.
- A.
A. red blood cells, white blood cells, platelets.
- B.
B. enzymes, red blood cells and water
- C.
C. lipase, protease and amylase
- 19.19. A stoma consists of _________ and ______________. (Use comma to seperate the answer)
- 20.20. Xylem transports water.
- A.
True
- B.
False
- 21.21. ________ transports food in plants from leaves to roots.
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