Excretory System Class 10 Welcome to your Excretory System Class 10 Name 1. Choose the Odd one out Tears Saliva Sweat Urine2. Maximum amount of water from glomerular filtrate is reabsorbed in Ascending limb of loop of Henle Descending limb of loop of Henle Proximal convoluted tubule Distal convoluted tubule3. Where does blood go after it leaves the glomerulus? It runs parallel to the nephron via the efferent venules It re-enters pulmonary circulation It returns to the heart via the inferior vena cava It runs parallel to the nephron via the efferent arterioles4. Profuse sweating takes place during heavy muscular exercise. The reason is To eliminate excessive lactic acid produced due to anaerobic metabolism To excrete excess amount of sodium chloride All of these To regulate the temperature of the body5. Which of the following are located in the cortex of the kidney? Glomerulus and Proximal tubule Glomerulus, PCT and DCT Ascending limb, descending limb and collecting duct Loop of Henle6. The removal of nitrogenous wastes is called as Excretion Breathing Sweating Defecation7. Which term describes a one way valve composed of smooth muscle that functions in elimination of urine? Cecum Sphincter Villus Appendix8. A tube that arises from the kidney and connects behind with the urinary bladder is called Renal tubule Ureter Urethra Pelvis9. What is the chief nitrogenous waste in mammals? Uric acid Amino acid Urea Ammonia10. Which section of the Nephron is primarily responsible for concentrating the urine? Glomerulus Distal convoluted tubule Loop of Henle Proximal Convoluted tubule11. The Urinary system consists of Two bladders,two kidneys,one ureter, one urethra One bladder, two kidneys, one ureter, two urethras Two bladders, two kidneys, two ureters, one urethra One bladder, two kidneys, two ureters, one urethra12. Ultrafiltration occurs in Bowman's capsule Distal convoluted tubule Proximal convoluted tubule Henle's loop13. Excretion primarily involves Removal of nitrogenous waste All of the above Removal of all by-products during catabolism Removal of by-products during anabolism14. The bowman's capsule and the glomerulus together are called Malpighian capsule or Renal capsule Renal capsule Renal tubule Malpighian capsule15. Which product, secreted by the kidney, helps regulate blood pressure? Antidiuretic hormone Cortisol Aldosterone Renin16. What is located within the glomerular capsule? Renal cortex A knot of capillaries Loop of Henle Several conducting ducts17. The structural and functional unit of kidney is Ureter Urine Nephron Neuron18. The apex of each pyramid which projects into the pelvis of the kidney is called Medulla Papilla Calyx Pyramid19. Which of the following organs is the storage area of urine? Kidney Urinary bladder Urethra Ureter20. The consumption of alcohol has what effect on the human urinary system? It results in dark, concentrated urine It increases the activity of antidiuretic hormone(ADH), decreasing urine production It decreases the activity of antidiuretic hormone(ADH), increasing urine production It completely blocks the flow of fluids through the kidney tubules21 out of Time is Up!
