1. Main function of the _______ is to filter the wastes from the blood and excrete them in the form of urine.   Kidneys   Urinary Bladder   Endocrine glands   Lungs   Hint Half-n-half Clue   2. Bag like structure in which urine is stored.   Ureter   Urinary Bladder   Stomach   Kidney   Half-n-half Clue   3. Which of these is not a normal constituent of urine: sugar, urea or creatinine?   Creatinine   Urea   Sugar   Half-n-half Clue   4. True or False: Malpighian body is a part of nephron.   True   False   5. Which is not true regarding kidneys? A. They do not have any capsule. B. They are bean shaped and reddish brown in color. C. Each kidney is divided into 2 parts - cortex and medulla. D. They are the main excretory organs.   A   B   C   D   Half-n-half Clue   6. Which of these is not an excretory organ: intestine, lungs, thyroid or kidneys?   Thyroid   Intestine   Lungs   Kidneys   Half-n-half Clue   7. 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