1. Main function of the _______ is to filter the wastes from the blood and excrete them in the form of urine.   Endocrine glands   Urinary Bladder   Kidneys   Lungs   Hint Half-n-half Clue   2. Which of these is not a normal constituent of urine: sugar, urea or creatinine?   Urea   Creatinine   Sugar   Half-n-half Clue   3. Which of these is not an excretory organ: intestine, lungs, thyroid or kidneys?   Intestine   Lungs   Thyroid   Kidneys   Half-n-half Clue   4. 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   5. Tuft of capillaries inside the Malpighian body is known as   Collecting ducts   Renal artery   Nephron   Glomerulus   Half-n-half Clue   6. Bag like structure in which urine is stored.   Ureter   Stomach   Urinary Bladder   Kidney   Half-n-half Clue   7. 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