1. Which of these is not a normal constituent of urine: sugar, urea or creatinine?   Sugar   Urea   Creatinine   Hint Half-n-half Clue   2. Identify urethra in this diagram.   1   2   3   4   Half-n-half Clue   3. Which of these is not true -- A, B, C or D? A. Kidney excretes urea. B. A small fraction of CO2 is removed through the skin. C. Small amount of salt is excreted through skin. D. Feces is excreted through the anus.   A   B   C   D   Half-n-half Clue   4. Main function of the _______ is to filter the wastes from the blood and excrete them in the form of urine.   Endocrine glands   Lungs   Urinary Bladder   Kidneys   Half-n-half Clue   5. Which of these is not a function of kidneys? A. Maintenance of acid base balance. B. Excretion of nitrogenous waste products. C. Temperature regulation. D. Maintenance of water balance.   A   B   C   D   Half-n-half Clue   6. True or False: Malpighian body is a part of nephron.   True   False   7. Bag like structure in which urine is stored.   Ureter   Kidney   Urinary Bladder   Stomach   Half-n-half Clue