1. A person with blood group ___ is called a universal donor.
2. Which component of blood fights against germs that enter the human body?
3. Red Blood Cells have an average life span of 120 days after which they are destroyed in the–
4. ______ in our body is a cartilaginous box which helps in sound production:
5. Individuals with_______blood group are called universal donors-
6. Which part of the human respiratory system provides space for the exchange of gases?
7. A large, muscular sheet called_______forms the floor of the chest cavity.
8. ______ are the most abundant cells in blood.
9. Normal range of breathing rate per minute in an average adult person at rest is………
10. The growing 'voice box' in boys appears as a prominent bulge on the front of the throat, which is called_____.
11. Which type of White Blood Cells secrete histamine, serotonin, heparin, etc., and are involved in inflammatory reactions?
12. Increased RBC's in the blood leads to a condition called…………..
13. Which of the following elements is found in haemoglobin?
14. On an average, how many million Red Blood Cells are present in a healthy human adult man per mm³ of blood?
15. Why does one feel tired at high mountain peaks?
16. An erythrocyte lives for approximately ______.
17. During heavy exercise, we get cramps in the legs due to the accumulation of …….. .
18. Which of the following is true?
19. Which of the following statements about blood pressure is correct?
20. The normal pH of human blood is _______ (approximate)
21. The blood clot formed is due to the presence of which of the following?
22. .......... are the most abundant cells (60–65 per cent) of the total White Blood Cells.
23. Blood is red in colour due to the presence of –
24. A universal donor has the blood group----
25. Why is the colour of human blood red?
26. Which of the following parts of the human body extracts the carbon dioxide, brought by the blood, from the rest part of the body?
27. Muscles get tired when there is shortfall of……….
28. Which of the following statements is NOT correct regarding the 'Bombay blood group'?
29. Both, haemoglobin and myoglobin require ____ for formation.
30. Which chamber of human heart receives abundant oxygenated blood from lungs?
31. ....are the most abundant of all the cells in blood:
32. What is the main purpose of white blood corpuscles?
33. During exhalation, the ribs………..
34. Lungs have a large number of alveoli for.......
35. During inhalation, the ribs………
36. Within what pH range does the human body work?
37. The three-carbon molecule produced during the process of respiration is called.
39. Lungs are the primary organs of……….
40. What is the liquid component of blood?
41. In which part of the body is blood produced?
42. During heavy exercise, breathing rate in an average adult person can increase upto…………per minute.
43. Which of the following white blood cells is a type of agranulocytes?
44. Blue swollen veins, which arise from valves that do not close properly, are called–
45. A condition characterised by abnormal increase in the number of red cells in the circulatory blood is called:
46. Which of the following carries blood away from the heart to different body parts?
47. How many molecules of ATP are obtained by the respiration of one molecule of glucose?
48. Haematopoiesis take place in ------
49. What is the average life of Red Blood Cells in human body?
