Question

Some organisms store wastes in body parts. (State the following statement is true or false )
a. True
b. False

Answer 1

Hint: Excretion is the removal of metabolic wastes from the body. These wastes are mainly nitrogenous and are of given types: Ammonia, Urea, Uric acid, Xanthines, Guanines, Trimethylamine oxide, Ornithuric acid, Hippuric acid, Creatinine, etc.

Complete answer:
Many organs and glands store wastes in the human body examples are
> Kidneys: used for removal of urea, salts, water from the blood

> Skin: The sweat and sebaceous glands can eliminate certain substances through their secretions. Sweat contains NaCl, small amounts of urea, amino acids and glucose, etc. Substances like sterols, hydrocarbons, and waxes are eliminated by the Sebaceous glands through sebum.

> Lungs: They remove large amounts of CO2 produced metabolically and also significant quantities of water every day in normal resting conditions. Large intestine: removes solid waste

> Liver: It is the main site of cholesterol elimination, bile pigments (bilirubin and biliverdin), degraded steroid hormones, some vitamins, and many drugs. The liver secretes these substances in the bile and bile, in turn, carries these materials to the intestine, which are ultimately eliminated with the feces.

These organs and glands can store waste until it is eliminated from the body.
Hence, the correct answer is option (A).

Note: Other organisms have the following excretory structures in their body:
• Protonephridia or flame cells used by Platyhelminthes, rotifers, some annelids, cephalochordates, etc. Protonephridia plays a major role in osmoregulation.
• Nephridia: These are tubular excretory structures of earthworms and other annelids.
• Malpighian tubules are the excretory structures of most insects including cockroaches.
• Antennal glands or green glands: These perform an excretory function in crustaceans like prawns.
On the basis of types of waste produced, organisms are mainly classified into Ammonotelic, Ureotelic, and Uricotelic.