Life Processes Worksheet-40

Life Processes Worksheet-40

 

True or false:

  1. The purpose of formation of urine is to filter out the waste products from the lymph.

 

  1. Excretion means removal of Nitrogenous waste from the body.

 

  1. Renal artery enters the kidney and renal vein and ureter comes out from the kidney.

 

  1. The urine stored in the bladder is carried out of the body by a tube called ureter.

 

  1. Two normal constituents of urine are blood and sugar.

 

  1. Micturition is under the control of sphincter muscles.

 

  1. Loop of Henle helps in selective reabsorption.

 

  1. Urine is a secretory product.

 

  1. Kidney helps in only osmoregulation.

 

  1. Thousands of nephrons are present in each kidney.

 

  1. Urea is produced in kidney.

 

  1. The neck of urinary bladder is called ureter.

 

  1. If excess water intake dilutes body fluids, ADH secretion increases.

 

  1. Reabsorption of water occurs in Henle’s loop.

 

  1. Absorption and secretion are functions of tubular part of nephrons.

 

  1. Micturition is expulsion of urine from the bladder along the urethra.

 

  1. Normally urine has alkaline pH while blood has acidic pH.

 

  1. Glomerular filtrate contains plasma proteins, urea, glucose, water, blood corpuscles, etc.

 

  1. The process by which water level of body maintained is termed as osmoregulation.

 

  1. The walls of ureter are lined by transitional epithelium.

 

  1. Left kidney is slightly lower than the right one due to presence of liver on left side of abdomen.

 

  1. The male urethra is longer than female urethra.

 

  1. Glomerulus and Bowman's capsule together called Malpighian body.

 

  1. Hemodialysis is called artificial kidney.

 

  1. Protein free fluid is filtered from blood plasma into Bowman's capsule.

 

  1. Urine reaches the bladder from kidneys through the ureters.

 

  1. Fishes can excrete out nitrogenous waste in the form of nitric acid.

 

  1. Plants generally excrete out by the process of diffusion from different parts.

 

  1. Waste products in plants may be stored as resins and gums especially in old xylem.

 

  1. Photorespiration and photosynthesis are opposite to each other functionally.

 

Answer:

  1. False: The purpose of formation of urine is to filter out the waste products from the blood

  2. True

  3. True

  4. False: The urine stored in the bladder is carried out of the body by a tube called urethera

  5. False: Two normal constituents of urine are water and urea

  6. True

  7. True

  8. False: Urine is excretory product

  9. False: Kidney helps in osmoregulation and excretion

  10. False: millions of nephrons are present in each kidney

  11. False: Urea is produced in liver

  12. False: The neck of urinary bladder is called urethra

  13. True

  14. True

  15. True

  16. True

  17. False: Normally urine has acidic pH while blood has alkaline pH

  18. False: Glomerular filtrate contains urea, glucose, water, etc. but it does not contain blood corpuscles and plasma proteins.

  19. True

  20. True

  21. False: Right kidney is slightly lower than the left one due to presence of liver on right side of abdomen

  22. True

  23. True

  24. False; Hemodialysis is done using artificial kidney

  25. True

  26. True

  27. False: Fishes can excrete out nitrogenous waste in the form of ammonia

  28. true

  29. True

  30. True