Cutaneous respiration in earthworm., Biology

Assignment Help:

Cutaneous respiration in earthworm.

The respiration performed by the skin is called cutaneous respiration
In earthworm skin is the only organ of respiration.
The skin is richly supplied with blood vessels.In earthworm, the respiratory pigment (unlike other animals haemoglobin is dissolved in the plasma of blood but not in blood corpuscles) Haemoglobin carries oxygen to the tissues.
The skin is always kept moist because of the secretion of mucous & coelomic fluid which comes out through dorsal pores.
The oxygen present in the air diffuses into thin water layer which is beneath the mucous layer and then it diffuses into the blood through the walls of blood capillaries. In the same way carbondioxide expels out through the skin.
Earthworms come out of their burrows in rainy season when the burrows are filled with water due to suffocation.

Related Discussions:- Cutaneous respiration in earthworm.

Explain the characteristics of starch granule, Explain the Characteristics ...

Explain the Characteristics of Starch Granule Starch granules, primarily, are made up of amylose (20-30%) and or amylopectin (70-80%) molecules arranged radially. Each granule

Control of aflatoxin, Q. Control of Aflatoxin? Control: Because aflatox...

Q. Control of Aflatoxin? Control: Because aflatoxins are potentially widespread in occurrence and have an insidious combination of acute and chronic toxicity, it is prudent to

What is the indication of chronic pulmonary thromboembolism, Chronic Pulmon...

Chronic Pulmonary Thromboembolism : The operation recommended is pulmonary thrombo endarterectomy. Indication : The main indication for surgery is when patients with chroni

Energy metabolism, Energy Metabolism In the preceding sections of the ...

Energy Metabolism In the preceding sections of the unit, you studied how the products of digestion of food, viz: amino acids, sugars and fatty acids are absorbed and transport

Explain antibacterial activity, Antibacterial activity Rifaximin reach...

Antibacterial activity Rifaximin reaches high concentrations in the intestinal tract and is active in vitro against a broad range of enteropathogens, including ETEC, EAEC, Shi

Explain about the fat metabolism - ageing, Explain about the Fat metabolism...

Explain about the Fat metabolism - Ageing? With increasing age, the blood cholesterol and blood triglyceride levels gradually increase. Certain factors like the kind and amoun

Define about the composition of body weight, Define about the Composition o...

Define about the Composition of Body Weight? You might have read in previous units that our body weight is composed of muscle bone and fat. Segregating these components of body

What are the ions, Q. What are the ions? What are the two kinds of molecule...

Q. What are the ions? What are the two kinds of molecules into which ions are classified ? Ions are substances or atoms electrically charged by means of gain or loss of electron

Middle ear, MIDDL E EAR - Protected by tympanic bone. It's cavity...

MIDDL E EAR - Protected by tympanic bone. It's cavity is tympanic cavity. It is lined by simple cilliated columnar epithelium. It is connected to naso pharynx by Eu

.animal cell, what is ribosomes

what is ribosomes

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages