Essay On Kidneys

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PTR
• The process by which an organism obtains its food is called nutrition.
• Based on the mode of nutrition plants are classified into autotrophs and heterotrophs.
• The plants which can synthesize their own food are called autotrophic plants.
• Autotrophs are classified into two types, namely, photoautotrophs and chemoautotrophs.
• The organisms which can synthesize food in the presence of light are called photoautotrophs.
All green plants are autotrophs. Plants prepare their own food by a process called photosynthesis. During photosynthesis, light energy is converted into chemical energy. Sunlight, carbon dioxide, water and chlorophyll are essential for the process of photosynthesis. PTR
• The plants which depend upon other living organisms or dead organic matter …show more content…

• Kidney consists of three components, namely, ureter, urinary bladder and urethra.

Ch sar 17-7-15

Summary
Kidneys have bean shaped structure. They are located in the upper abdominal region, on either side of the vertebral column. Kidney is covered by a thin outer membrane called renal capsule. It consists of three components. They are ureter, urinary bladder and urethra. Ureter arises from the renal hilus of kidney. It opens into a muscular sac called urinary bladder. Urinary bladder stores urine. It opens into a tube called urethra.
• Excretion is the process of separating wastes from the body fluids and eliminating them.
• Excretory system is composed of kidneys, ureters, bladder and urethra.
• Kidneys play major role in the separation of urea, mineral salts, toxins and other waste products from the blood.

Ch sar 17-7-15

Summary
The process of elimination of metabolic wastes from the body is called excretion. In humans, kidneys are the excretory organs. Excretory system is comprised of kidneys, ureters, bladder and urethra. Kidneys play an important role in maintaining the chemical composition of

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