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CBSE Class 10 Question Bank 2022 : Biology - Set 11 (Mother's Public School, Bhubaneswar)

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MOTHER S PUBLIC SCHOOL BIOLOGY REVISION TEST (CLASS-X) DATE : 24.9.2021 Grade X-Biology-Chapter- Life Processes-Revision test set 11 I. Read the following passage and give the most appropriate answer for the following questions from Q.1 to Q.5. Given are the sections of two pipes, A and B. If you need to represent blood vessels with these, which of the pipes would correspond to the artery and which one to a vein. Identify it and answer the following questions. (1) B is best defined as the vessel which (a) always supply oxygenated blood to the different organs (b) always carry blood away from the heart to different organs (c) always break up into capillaries that reunite to form a vein (d) always carry blood from one visceral organ to another visceral organ. (2) In A, valves are present to check backward flow of blood flowing at (a) atmospheric pressure (b) high pressure (c)low pressure (d) all of these (3) Which of the following statements is correct regarding A? (a) Carries blood from an organ towards the heart (b) Always carry oxygenated blood with single exception (c) Carries blood from heart towards the organ (d) All of these (4) Which of the following statements is incorrect? (a) A has typically larger lumen than B. (b) Walls of B are elastic enabling them to stretch and shrink during changes in blood pressure. (c) Flow of blood is slower in A than in B. (d) None of these (5) Blood pressure in the pulmonary artery is (a) more than that of pulmonary vein (c)same as that in aorta (b) less than that in the vena cava (d) less than pulmonary vein. II. Read the passage and answer Q.6 to Q.10 Bowman s capsule filters blood from the circulatory system into the tubules. Larger molecules such as proteins and blood cells are prevented from passing through the filtration membrane. About 99% of this filtrate is reabsorbed as it passes through the nephron and the remaining 1% becomes urine. (6) A person takes large amount of protein. He is likely to excrete more amount of (a) water (b) glucose (c) urea and uric acid (d) salt. (7) Blood plasma contains proteins, but glomerular filtrate does not. How does this difference in composition occur? (a) Blood osmotic pressure is maintained by the presence of plasma proteins. (b) Proteins are actively transported from the kidney tubule back into the blood capillaries. (c) Proteins cannot pass through the membrane of glomerular filtrate. (d) There is a high hydrostatic pressure in the blood within the glomerular capillaries. (8) Study the figure and answer the following: D B E A C F (a) The conc. Of urea in blood vessel A is less in comparison to blood vessel B. (b) The conc. Of urea in blood vessel A is more in comparison to blood vessel B (c) The conc. Of urea in both the vessel are same (d) There is no urea in both vessels. (9) Selected substances of the initial filtrate are mostly reabsorbed in (a) C and D (b) D and F (c) F and C (d) F, C, D (10) The concentration of nitrogenous waste is more in (a) E (b) D (c) F (d) C Assertion and Reason based questions Direction: In the following Questions, the Assertion and Reason have been put forward. Read the statements carefully and choose the correct alternative from the following: (a) Both the Assertion and the Reason are correct and the Reason is the correct explanation of the Assertion. (b) The Assertion and the Reason are correct but the Reason is not the correct explanation of the Assertion. (c) Assertion is true but the Reason is false. (d) Assertion is false but the Reason is true. 11. Assertion-Ventricular diastole is contraction and Ventricular systole is relaxation of the blood pressure in the arteries. Reason-Normal systolic pressure is 120 mm Hg and normal diastolic pressure is 80 mm Hg. 12. Assertion: Lymph is a tissue involved in translocation. Reason: Lymph is formed when some amount of plasma, proteins and blood cells which escape into intercellular spaces in the tissues through the pores present in walls of capillaries. 13. Assertion -Desert plants take in carbon dioxide at night and prepare an intermediate. Reason - During respiration plants release oxygen at night. 14. Assertion: The green parts of the potted leaf turns blue black when it is immersed in the iodine solution. Reason: The green parts indicated the presence of chlorophyll in the cells of those areas. 15. Assertion -The saliva contains an enzyme called salivary amylase that breaks down starch into simpler form. Reason -Food, in order to be absorbed of its nutrients, needs to be broken down into smaller substances. 16. Assertion: Molecular movements are needed for life. Reason: Body structures made up of these molecules need continuous repair and maintenance. 17. Assertion: Diffusion doesn't meet high energy requirements of multi cellular organisms. Reason: Diffusion is a fast process but only occurs at the surface of the body. 18. Assertion: Gastric juice contain pepsin. Reason: Pepsin digests lipids. 19. Assertion: Excretion is the biological process by which harmful wastes are removed from an organisms body. Reason: The mode of excretion is completely same in both unicellular and multicellular organisms. 20. Assertion: Artificial kidney is a device used to remove nitrogenous waste products from the blood through dialysis. Reason: Reabsorption does not occur in artificial kidney.

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