EXCRETION CBSE X B& C

More water is reabsorbed in blood due to

• more anti-diuretic hormone
• lesser anti-diuretic hormone
• active functioning of pancreas
• inactivity of pituitary gland

Kidneys do not help in

• osmoregulation
• maintaining body temperature
• maintaining composition of blood plasma
• regulation of blood pH

Cortex contains cuplike structures called as

• loop of Henle'
• Renal capsule
• Bowman's capsule
• Glomerulus capsule

Elimination of nitrogenous waste is called

• Excretion
• Nutrition
• Osmoregulation
• Egestion

Which of the following is the chief excretory organ

• Lungs
• Kidney
• Skin
• Liver

Metabolic activities means

• Nutrition
• respiration
• photosynthesis
• all of the above

unicellular organism remove the waste by the process of

• diffusion
• active transport
• pump mechanism
• vacuole excretion

Complex multicellular organism needs specialized organ for excretion because

• Many cells are there
• Entire cell surface is not in contact of environment
• All the cells are producing metabolic waste
• All of the above

Excretory systems of human being have following parts

• Two kidney
• Two ureters
• Urinary bladder & Urethra
• All of the above

The function of kidney

• Filtration of blood
• Urine formation
• Elimination of excess water
• All of the above