substances excreted in animals

Substances Excreted in Animals - The metabolic wastes which are excreted by animals may be grouped as follow..

Carbon dioxide and water are the by-products of catabolism of all varieties of foodstuffs. In lower animals carbon dioxide is eliminated directly into the environment through the body surface. In higher animals it is excreted out along with the exhaled air throug..

The metabolic wastes which are excreted by animals may be grouped as follows: ..

Summary - Excretion is the elimination of waste products from the body. The non - volatile products are mainly excreted in the urine. The urinary system consists of those organs which form, store and void urine. The nitrogenous wastes are mainly produced by catabolism of protein..

Excretion is carried out by segmentally arranged coiled ducts called nephridia. Based on their location, these nephridia can be distinguished into three types- i. Pharyngeal nephridia which occur as paired tufts on either side of the pharynx and oesophagus in the fourth, fifth and sixth s..

Excretion in Plants - In plants, breakdown of substances is much slower than in animals. Hence accumulation of waste is much slower and there are no special organs of excretion. Green plants in darkness or plants that do not contain chlorophyll produce carbon..

Introduction - The nitrogenous waste materials produced in the animal body due to metabolic reactions are of no use to the cell. These waste materials if allowed to accumulate in the body, may become toxic. Therefore, they must be removed from the body. The process of elimination of metab..

Amoeba is a protozoan which forms the simplest of all groups in the animal kingdom. Inspite of being unicellular it is physiologically balanced and performs all the essential processes of an animal. Carbon dioxide, urea, uric acid and mineral salts are not allowed to collect bey..

Introduction - The nitrogenous waste materials produced in the animal body due to metabolic reactions are of no use to the cell. These waste materials if allowed to accumulate in the body, may become toxic. Therefore, they must be removed from the body. The process of elimination of metab..

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