Junior Cert Science - Biology - Excretionkidneys.gif

Gap-Filling Quiz

Type the answers (or copy and paste them) into the blank boxes.
You may press the Hint button to get the next letter. However, you will lose marks each time that you receive a hint.
When you have selected all of your answers, click on the "Check" button.
Good luck!
   bladder      renal      skin      sweat      two      urea      ureters      urethra      waste      water   
Excretion is the removal of from the body. The body's excretionary organs are the , the lungs and the kidneys. The skin excretes water and salts as . The lungs excrete carbon dioxide and . The kidneys excrete water, salts and . The urinary system consists of kidneys, arteries and veins, ureters, bladder and urea. Blood enters the kidneys through the renal artery where , salts and urea are removed and form urine. The urine then passes to the via the . In the bladder, the urine is stored until it is removed from the body via the . The kidneys also control the amount of in the body.