Thursday, 24 October 2013

Ch-11 One mark Questions

Science-Chap-11

Chapter-11

Transportation in Animals and Plants

Sr NO.QuestionAnswer
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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