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.

Treatment of heart failure, Over the past decade, the conceptual understand...

Over the past decade, the conceptual understanding of heart failure has changed significantly. Several large clinical trials have demonstrated that non-pharmacological and pharmaco

What is the difference between a hormone and a morphogen, What is the diffe...

What is the difference between a hormone and a morphogen? How do they act and what type of development do they control?

What chromosome condition is created, Following fertilization by a normal s...

Following fertilization by a normal sperm, what chromosome condition is created?

Do all molecules of dna have the same amounts, Q. Do all molecules of DNA h...

Q. Do all molecules of DNA have the same amounts of nitrogenous bases? Number and sequence of nitrogenous bases in DNA molecule are key elements in variations which are found i

Control of the cell cycle, The cell cycle is controlled by a cyclically ope...

The cell cycle is controlled by a cyclically operating set of reaction sequences that both trigger and coordinate key events in the cell cycle • The cell-cycle control system is

Mitosis / Meiosis, Why must our cells duplicate the DNA molecules before t...

Why must our cells duplicate the DNA molecules before they divide in Mitosis? Why do chromosomes condense by wrapping around the histone protiens durning the cell cycle?

Explain monomeric enzymes, Monomeric enzymes Monomeric enzymes are thos...

Monomeric enzymes Monomeric enzymes are those which consist of only a single polypeptide chain, so they cannot be dissociated into smaller units. Very few monomeric enzymes are

Urgency, Overcoming these difficulties is urgent. New instrumentation and ...

Overcoming these difficulties is urgent. New instrumentation and measurement process, coupled with a developing computational infrastructure, give both a flood of data and the pro

Define sex as a determinants of nutrient requirements, Define Sex as a dete...

Define Sex as a determinants of nutrient requirements? There are some differences in requirements between the two sexes. However, except for iron, these are apparent rather tha

Illustrate hypertrophic cardiomyopathy?, Q. Illustrate Hypertrophic cardiom...

Q. Illustrate Hypertrophic cardiomyopathy? It is a genetic disorder due to mutations in the gene that encodes for β-Cardiac myosin heavy chain (Localised to chromosome 14). It

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages