Science Form 3 - BUSYBEE

[Pages:1]Science Form 3

CHAPTER 2 : Respiration

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Across 2. A substance found in cigarette to cause addiction 6. Oxygen-rich blood from the lung will be transported to the .... . 8. What is the process of inhaling or exhaling air by the body? 11. The respiratory organ. 14. Part of the skeletal system that protects the lungs 16. It opens when there is light and closed when conditions becomes dark or when the plant is

losing too much water. 18. Respiratory disease when the alveolus is damaged due to irritants in cigarette smoke 20. The body system that works to supply oxygen and remove carbon dioxide from the body cells.

Down 1. This muscle raise and lower the rib cage during breathing 3. In the blood, oxygen will combine with haemoglobin in the red blood cells to form .... to be transported to the body cells 4. The place where exchange of gases occurs 5. Respiratory disease when bronchus became inflamed caused by irritants like cigarette smoke 7. Stoma on the leaves of plants is open during the day to carry out this process. Name the process. 9. What is the process involved in the movement of gaseous through the wall of the alveoli and blood

capillaries? 10. This changes the air pressure in the thoracic cavity by increasing or decreasing the thoracic volume 12. A process of movement of substance from a less concentrated solution to a concentrated solution

through a semi permeable membrane 13. A thin and flat projection on the gill filaments of fish. 15. A type of cell that controls the opening of stoma. 17. A gas that is used during respiration or combustion. 19. This hazardous air pollution causes breathing difficulties and asthma

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