Characteristic feature of respiration, Biology

Characteristic Feature of Respiration

From our opinion we may say that the characteristic feature of respiration is the intake of oxygen and the output of the carbon dioxide. The oxygen taken in is employed in the oxidation of digested food in the cell to liberate energy. Carbon dioxide is generated as a consequence of oxidation of food materials. Its presence in the body is harmful, and therefore it is removed from the body during this process. In lower organisms such as protozoans, sponges, and platyhelminths, oxygen is taken directly from the surrounding aquatic medium and carbon dioxide is given out directly into the surrounding medium. In larger animals, several cells are deprived of direct contact with the external environment because of their complex structure and larger size. Therefore they require the help of respiratory and circulatory systems so as to facilitate exchange of gases and distribution of oxygen in all parts of the body.

Posted Date: 2/4/2013 5:01:21 AM | Location : United States







Related Discussions:- Characteristic feature of respiration, Assignment Help, Ask Question on Characteristic feature of respiration, Get Answer, Expert's Help, Characteristic feature of respiration Discussions

Write discussion on Characteristic feature of respiration
Your posts are moderated
Related Questions
Q. Rate Related Bundle Branch Block? The term has often implied the absence of significant coronary or myocardial pathology. It cannot be judged without taking the total clinic

How is the striped pattern of the striated muscle cells formed? The functional units of the muscle fibers are the sarcomeres. Within the sarcomeres blocks of myosin and actin

Explain the Gomez classification? It will be of interest to you to learn that in Mexico, a child specialist named Gomez and his co-workers proposed a classification expressing

What are the cell kinds that form the phloem? What are the major features of those cells? The major cells that form the phloem are the sieve elements and the companion cells an

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

#Predict: In order to be able to energize a transport protein by phosphorylation (by addition of a phosphate group from ATP), the portion of the protein to which the phosphate grou

The life of a eukaryotic cell can be explained as a cell cycle. Mitosis and cell division happens in the M phase that lasts for only about 1 h. This is followed by the G1 phase whe

characterstics and classification of vertebrates

Q. What is Glycosylated Haemoglsbin? Glycosylated haemoglobin values give important diagnostic inferences regarding the recent past of a diabetic i.e. how well he/she managed t

Q. What is ascaris? What is the disease caused by this worm? Ascaris lumbricoides or Ascaris is an animal of the nematode phylum that is a roundworm. Ascaris causes ascariasis,