classify the following organisms on the basis of their breathing organ; type of respiration and products of respiration: cockroach, frog, fish, bacteria, human, bird, yeast, plants?
Answers
Respiration is the process of taking in oxygen, using it in oxidation of glucose, releasing energy and eliminating waste products like carbon dioxide and water in the presence of respiratory enzymes. Respiration is brought about in two steps namely external respiration and internal respiration.
Respiration in earthworms
Earthworms exhibit cutaneous respiration i.e. respiration by skin.
*Earthworms do not possess special organs for respiration.
*They always secrete slimy secretion on to the skin which keeps it moist.
*The skin in these animals is moist and slimy which makes it permeable for oxygen to diffuse in and carbon dioxide to diffuse out of the body.
*As the earthworms cannot breathe in waterlogged conditions, they come out on to the soil during rainy season to obtain oxygen required for respiration.
Respiration in insects
An insect body is covered with air holes called as spiracles.
*Air enters through these air holes on the body and finally reaches the trachea.
*Trachea are a network of fine air tubes extending through out the body.
*Trachea help in circulating the oxygen throughout the body.
*The oxygen in the air diffuses into the tissues and is ultimately absorbed by the cells.
*The carbon dioxide released by the cells is carried by the trachea and given out through the spiracles.
Respiration in fishes
Fish are the aquatic vertebrates which respire through structures called as gills. This is called as branchial respiration.
*Gills are present on either side of the head and are supplied by rich blood vessels.
*Fish obtain oxygen dissolved in water.
*During respiration, water enters the body through mouth, passes through gills and comes out of the operculum.
*Exchange of gases takes place in the gills of fish supplied by numerous blood vessels.
*They accept oxygen into the body and expel out carbon dioxide.
Heya,
Respiration
Respiration is the process of taking in oxygen, using it in oxidation of glucose, releasing energy and eliminating waste products like carbon dioxide and water in the presence of respiratory enzymes. Respiration is brought about in two steps namely external respiration and internal respiration.
Respiration in earthworms
Earthworms exhibit cutaneous respiration i.e. respiration by skin.
*Earthworms do not possess special organs for respiration.
*They always secrete slimy secretion on to the skin which keeps it moist.
*The skin in these animals is moist and slimy which makes it permeable for oxygen to diffuse in and carbon dioxide to diffuse out of the body.
*As the earthworms cannot breathe in waterlogged conditions, they come out on to the soil during rainy season to obtain oxygen required for respiration.
Respiration in insects
An insect body is covered with air holes called as spiracles.
*Air enters through these air holes on the body and finally reaches the trachea.
*Trachea are a network of fine air tubes extending through out the body.
*Trachea help in circulating the oxygen throughout the body.
*The oxygen in the air diffuses into the tissues and is ultimately absorbed by the cells.
*The carbon dioxide released by the cells is carried by the trachea and given out through the spiracles.
Respiration in fishes
Fish are the aquatic vertebrates which respire through structures called as gills. This is called as branchial respiration.
*Gills are present on either side of the head and are supplied by rich blood vessels.
*Fish obtain oxygen dissolved in water.
*During respiration, water enters the body through mouth, passes through gills and comes out of the operculum.
*Exchange of gases takes place in the gills of fish supplied by numerous blood vessels.
*They accept oxygen into the body and expel out carbon dioxide.
Respiration in frogs
Frog is an amphibian having two lives, one in water and one on land.
*Frogs are the only organisms which exhibit cutaneous, branchial and pulmonary respiration in during different stages of their life cycle.
*Adult frogs can breathe through their skin. Skin is moist and slimy helping the animal to respire through skin under water as well as on land. This is termed to be cutaneous respiration.
*Adult frogs while on land respire through lungs. Lungs are the respiratory organs which help in exchange of gases. This is termed to be pulmonary respiration.
*Tadpoles, the larval stages of frog live in water. They respire through their gills as they do not possess well developed lungs. This is termed to be branchial respiration.
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