Sr NO. | Question | Answer |
1. | Blood is a ______?
| Liquid. |
2. | Blood has ____ of various kinds suspended in it.
| Cells. |
3. | The fluid part of the blood is called ______.
| Plasma. |
4. | One type of cells are the red blood cells (RBC) which contain a red pigment called ____________.
| Haemoglobin. |
5. | The blood also has __________ which fight against germs that may enter our body.
| White blood cells (WBC). |
6. | The clot (after a cut on our body) is formed because of the presence of another type of cells in the blood, called ______.
| Platelets. |
7. | How many types of blood vessals are present in our body?
| Two types. |
8. | What are two types of blood vessals present in our body?
| Arteries and veins . |
9. | ________ carry oxygen-rich blood from the heart to all parts of the body.
| Arteries. |
10. | ______ are the vessels which carry carbon dioxide-rich blood from all parts of the body back to the heart.
| Veins . |
11. | The veins have ____ walls.
| Thin. |
12. | There are ____ present in veins which allow blood to flow only towards the heart.
| Valves. |
13. | ______ carries blood from the heart.
| Pulmonary artery. |
14. | _______ carries oxygen-rich blood from the lungs to the heart.
| Pulmonary vein. |
15. | The capillaries join up to form veins which empty into the ____.
| Heart. |
16. | The heart act as a pump for the transport of _____. ______ carries other substances with it.
| Blood. |
17. | The heart is located in the _______ with its lower tip slightly tilted towards the left.
| Chest Cavity. |
18. | Your heart is roughly the size of your ____.
| Fist. |
19. | The two upper chambers of our heart are called the _____.
| Atria (singular: atrium). |
20. | Two lower chambers of our heart are called the _____.
| Ventricles. |
21. | The walls of the chambers of the heart are made up of _____.
| Muscles. |
22. | The doctor feels your heartbeats with the help of an instrument called a _____.
| Stethoscopes. |
23. | Carbon dioxide is removed as waste from the body through the _____during exhalation.
| Lungs . |
24. | The undigested food is removed during _____.
| Egestion. |
25. | Who discovered the circulation of blood?
| William Harvey in AD 1578-1657. |
26. | For discovering the fact of circulation of blood William Harvey was ridiculed. In what name he ridiculed by his contemporaries?
| Circulator. |
27. | Which organ remove waste present in our body?
| Kidneys. |
28. | The wastes dissolved in water are removed by kidneys as _____.
| Urine. |
29. | From the kidneys, the urine goes into the urinary _______ through tube-like ureters.
| Bladder. |
30. | From the kidneys, the urine goes into the urinary bladder through tube-like ____.
| Ureters. |
31. | Urine is passed out through the urinary opening at the end of a muscular tube called _____.
| Urethra. |
32. | An adult human being normally passes about ______of urine in 24 hours.
| 1 to 1.8 Litres. |
33. | What are the contents that constitute Urine?
| 95% water, 2.5% urea and 2.5% other waste products. |
34. | The way in which waste chemicals are removed from the body of the animal depends on the availability of _____.
| Water. |
35. | Aquatic animals like fishes, excrete cell waste as _______ which directly dissolves in water.
| Ammonia . |
36. | Some land animals like birds, lizards, snakes excrete a semi-solid, white coloured compound What chemical it contain?
| Uric acid. |
37. | The major excretory product in humans is ____.
| Urea. |
38. | Plants take water and mineral nutrients from the soil through the _____ and transport it to the
______.
| Roots , Leaves. |
39. | _____ is the source of energy. ______must be made available to every cell of an organism.
| Food. |
40. | Every cell of an organism gets energy by the breakdown of ______.
| Glucose. |
41. | A _____ is a group of cells that perform specialised function in an organism.
| Tissue. |
42. | The vascular tissue for the transport of water and nutrients in the plant is called the ____.
| Xylem. |
43. | ______ and _____transport substances in plants.
| Xylem and phloem. |
44. | Plants release a lot of water by the process of _________.
| Transpiration. |
45. | Plants absorb mineral nutrients and water from the ___.
| Soil. |
46. | A part of water absorbed by plants evaporates through the _____ present on the surface of the leaves by the process of transpiration.
| Stomata. |
47. | The blood from the heart is transported to all parts of the body by the ____________ .
| Arteries. |
48. | Haemoglobin is present in ___________ cells.
| Red Blood Cells. |
49. | Arteries and veins are joined by a network of ____________ .
| Blood vessals. |
50. | The rhythmic expansion and contraction of the heart is called _______.
| Heartbeat. |
51. | The main excretory product in human beings is ___________ .
| Urea. |
52. | Sweat contains water and __________ .
| Salt. |
53. | Kidneys eliminate the waste materials in the liquid form called ________.
| Urine. |
54. | Water reaches great heights in the trees because of suction pull caused by ________ .
| Transpiration. |
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