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