Science Form 3 Chapte 1-2

21 Questions | By Dianjing96 | Updated: Mar 21, 2022 | Attempts: 657

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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.