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Work sheet class 10 Name the following: 1. 2. 3. 4. 5. 6. A tuft of capillaries found in Bowman s capsule of nephron. The blood vessel leaving the kidney. The hormone that helps to increase the reabsorption of water from kidney tubules. The part of kidney having Bowman s capsule. The functional units of kidney. The chief nitrogenous product in the human urine. Write the important function of the following: 1. 2. 3. 4. 5. Glomerulus Renal artery Ureter Nephron Loop of Henley Define the following 1. Ultrafiltration 2. Excretion 3. Selective reabsorption 4. Tubular secretion 5. Dialysis 6. Osmoregulation 7. Haematuria 8. Glycosuria 9. Nephron 10. Glomerular filtrate Differentiate between the following 1. 2. 3. 4. 5. Afferent arteriole and Efferent arteriole Urea and urine Renal artery and Renal vein Selective reabsorption and Tubular secretion Bowman s capsule and Malphigian capsule. Give reasons: 1. 2. 3. 4. 5. Glucose is normally not found in the urine of a healthy person. Urine is slightly thicker in summer than in winter. It is necessary to maintain osmotic concentration of blood. Diameter of afferent arteriole is larger than the efferent arteriole. Renal vein contains more urea. Application and skill questions: 1. Given below is the figure of certain organs and associated parts. Study the 2 same and answer the questions that follow: 3 4 i. Name all the organ systems shown either completely or partially. 5 ii. to 5. iii. iv. 2. Name the parts numbered 1 Name two steps involved in the formation of the fluid that passes down the part labeled 3. Name any two organic constituents of the fluid that passes down the part labeled 4.. Study the given diagram along side and answer the questions that follow 4 1 2 3 i. ii. Name the region in the kidney where the above structure is present. Name the parts 1to 4. iii. iv. v. What is the collective term used for 2 and 3? Name and define the process that occurs in part 3. Why does part 4 divides into network of capillaries? 4. Study the given diagram and answer the questions. i. Label the parts 1 to 5 . ii. How do you differentiate between parts 1 and 2? iii. Name the functional units of kidney. iv .Write two differences in the composition of blood flowing through blood vessels A and B. 1 2 3 4 5
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