The tube between the kidney and urinary bladder is the……..
a) ureter
b) urethra
c) renal tubule
d) nephron
Wastes products excreted by the kidney are
a) urea, water and salts
b) salts, water and carbon dioxide
c) urea and water
d) urea and salts
Secretion of urea in sweat makes skin a
a) respiration organ
b) breathing organ
c) excretory organ
d) digestive organ
The two main functions of sweat are to
a) keep the body cool and to remove excess proteins
b) keep the body warm and to filter the blood
c) filter the blood and to remove waste products
d) remove waste products and to cool the body
Which is NOT present in the filtrate entering the Bowman’s capsule of a nephron…….
a) water
b) calcium ions
c) blood cells
d) urea
Liver also plays a role in excretion. It makes urea from………
a) uric acid
b) ammonia
c) carbon dioxide
d) amino acids
