#1. A …. is the smallest structural and functional unit of an organism.
#2. Function of cells of an organism.
#3. The breakdown of food in the presence of oxygen takes place in ……
#4. The process of breakdown of food in the cell with the release of energy is called……
In the cell, the food is broken down into ….A… , …B….and release …C…. using oxygen.
#8. Breakdown of Food without using oxygen is called …….
#9. Breakdown of Food with using oxygen is called …….
#10. Some organisms that can survive in the absence of air. They are called ……..
#11. Yeast get energy through ……. respiration.
Yeast, In the absence of oxygen, glucose breaks down into ….A…. and ….B…..
#14. …… organisms are used to make wine and beer.
#15. Can our cells break down food without the use of oxygen?
#16. Anaerobic respiration in our body produce ………+ energy.
#17. The partial breakdown of glucose produces ….. in our cells
#18. We get relief from cramps by a ……
#19. The taking in of air rich in oxygen into the body is called …………
#20. giving out of air rich in carbon dioxide is known as ……
#21. The number of times a person breathes in a minute is termed as the …..
#23. On an average, an adult human being at rest breathes in and out …… times in a minute
#24. During heavy exercise, our the breathing rate can increase upto …… times per minute.
#25. We take in air through our ……
#26. When we inhale air, it passes through our nostrils into the …….
#27. From the nasal cavity, the air reaches our lungs through the ………….
#28. Lungs are present in the …….. cavity.
#29. Chest cavity is surrounded by …… on the sides
#30. A large, muscular sheet called ……. forms the floor of the chest cavity
#31. Breathing involves the movement of the ….
#32. During inhalation, ribs move ……
#33. During exhalation, ribs move ……….
Write percentage of oxygen and carbon dioxide in inhaled air …..
Write percentage of oxygen and carbon dioxide in exhaled air …..
#38. In insects the exchange of gases occurs through…..
#39. Earthworms breathe through their …….
#40. Frogs breathe through ……
#41. Fish breathe through ……
#42. In plants each part independently take in oxygen from the air and give out carbon dioxide.
#43. leaves of the plants have tiny pores called ……. for exchange of oxygen and carbon dioxide.
#44. The root cells also need oxygen to generate energy.
#45. In cockroaches, air enters the body through ….