Topic-6
Biology
1. Name the animal in which anaerobic respiration is found ?- Roundworm
2. What is formed when the incomplete oxidation of substances is there ? Carbon Di Oxide and Alcohol
3. Which acid is produced due to anaerobic respiration ?-Lactic Acid
4. What is the normal breathing rate in the human beings ?-18-20 breaths per minute
5. Transportation of Oxygen is taken by which substance of human body ?- Haemoglobin
6. How much carbon dioxide is transported in the Haemoglobin ?- 10-20%
7. What is the nature of respiration ?
· Catalytic
· It reduces weight of the body.
8. What is the small flap of cartilage that is present over Larynx or voice box or Adam’s Apple ?- Epiglottis
9. In which animal true vocal cord is absent ?-Hippopotamus
10. What is the total lung capacity of humans ?- 6000 ml
11. Which system provides useful material to the human body and removes the waste from the body ?-Circulatory System
12. What are the constituents of Circulatory System ?- Heart , Blood Vessels and Blood
13. What are the chambers of heart called that receive blood from the human body ?- Auricles
14. What are the chambers of heart called that pump blood to the human body ?- Ventricles
15. What are the thin two layered sac around the human heart is called ?-Pericardium
16. How many chambers are there in the heart of human beings ?-Four (Two Auricles and Two Ventricles )
17. How many heart chambers are there in fishes ?-Two (One Auricle and One Ventricle )
18. How many chambers of heart are there in amphibians ?- Three
19. How many chambers are there in the heart of crocodile , birds and mammals ?- Four (Two Auricle and Two Ventricle)
20. Heart of which class is structurally three chambered but functionally four chambered ( i.e. incomplete four chambered ) ?- Reptilian except in crocodile
21. What is the weight of the heart of the new born baby ?-20 gms
22. What is the average weight of the heart in men ?- 280-340 gms
23. What is the average weight of the heart in women ?- 230-280 gms
24. What is the name given to the pain in the heart ?- Angina
25. What is the contraction of the heart called ? – Systole
26. What is the relaxation of the heart called ?- Diastole
27. What is the sound of systole and diastole called ?- Lub and Dub
28. Which vessels in the heart carry the pure blood ?- Arteries
29. Which vessels in the heart carry the impure blood ?- Veins
30. What is the name of the node in the human heart that is the basis of the myogenic heart beat (i.e. initiated by a patch of modified hear muscle itself without requiring an external stimulation)? – Sino-auricular Node or SA Node or Pacemaker
31. What are Capillaries ?
· They are the thinnest blood vessels.
· They connect arteries to the veins.
· They help in exchange of materials like the nutrients , gases , waste products etc,. between blood and cells.
32. What is the other name of the Red Blood Cells ?- Erythrocytes
33. What are the features of the Red Blood Cells ?-
· They contain the blood haemoglobin .
· They distribute oxygen.
· They are the most abundant cells.
· Mature RBC’s lack a nucleus and organelles.
· In camel and Llama RBC’s are nucleated.
34. What are the coagulating elements in Plasma ? – Fibrinogen and Prothrombin
35. Which unit measures the blood pressure ?- Sphygmomanometer
36. What is the upper reading of the blood pressure called ? – Systolic
37. What is the lower reading of the blood pressure called ?-Diastolic
38. List the factors that affect the blood pressure :
I. Age
II. Cardiac Output
III. Total Peripheral Resistance
39. What is the other name of the White Blood Cells ?- Leukocytes
40. What are the features of the White Blood Cells ?
· They are the part of the immune system of the body.
· They destroy and remove the aberrant cells and cellular debris .
· They attack against infectious agents and foreign substances.
· They are much less in number than RBC’s ( 1 : 600 )
41. What is the other name of Platelets ?- Thrombocytes
42. What are the features of the Platelets ?
· It is responsible for blood clotting (Coaugulation ).
· It changes fibrinogen into fibrin.
43. What is the condition of the persistent high blood pressure called ? – Hypertension.
44. What is the condition of the persistent low blood pressure called ?- Hypotension
45. Which instrument is used to check the working of heart ?- Electrocardiograph (ECG)
46. What does the human skeletal system include ?- Ligament , Tendon , Muscles, Cartilage
47. How many bones are there in the Axial Skeleton System ?- 80 Bones
48. Which bones are there in the Axial Skeleton System ? – Skull, Vertebral Column and Bones of Chest
49. How many bones are there in the Appendicular Skeleton System ?- 126 Bones
50. What is the major function of the Appendicular Skeleton System ? – To make locomotion possible and to protect the major organs of locomotion, digestion, excretion and reproduction.