Spiracular control - respiration, Biology

Spiracular Control - Respiration

Another very interesting system of spiracular control is seen in some insect species. The spiracles are kept closed tightly most of the time. When the insect requires oxygen the spiracles open partially and close rapidly again. This 'fluttering' of the spiracle lets the air enter in a streaming movement without much loss of water.

Once a high partial pressure of oxygen is reached the spiracles close. While the oxygen is utilised by the tissues the carbon dioxide is stored temporarily in the tissues as bicarbonates thus keeping the Pco2 within tolerable limits, when Pco2, reaches a critical limit the spiracles open fully and expel the carbon dioxide in a single burst and the cycle is repeated.

Posted Date: 1/15/2013 7:38:04 AM | Location : United States

Related Discussions:- Spiracular control - respiration, Assignment Help, Ask Question on Spiracular control - respiration, Get Answer, Expert's Help, Spiracular control - respiration Discussions

Write discussion on Spiracular control - respiration
Your posts are moderated
Related Questions
A)Which of the following statements about DNA structure is true? 1.The nucleic acid strands in a DNA molecule are oriented ant parallel to each other, meaning they run in opposite

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

Upwelling zones of high biological productivity are found along the western coasts of the major continents. What causes this upwelling? a- cold currents moving from the equator tow

Q. Into which two groups can the nitrogen-containing bases that form RNA and DNA be classified? What is the criterion used in to that classification? The nitrogen-containing ba

Photosynthesis happens in algae, green plants and photosynthetic bacteria. Its part is to catch solar energy and use this to drive the synthesis of carbohydrate from water and carb

What are the two reactants and the two products of a dehydration reaction/ what are the two reactants and products of a hydrolysis reaction.

B o v i ne ephemeral fever Ephemeral fever is commonly known as 'three-day sickness'. It affects mainly cattle and occasionally sheep in India. Causative agent is a mosquit

Explain benefits of Protein Protein: Once the energy requirements haveĀ  been estimated, protein requirements can be addressed. The aim is to achieve nitrogen balance. There are

Explain Microorganisms Associated With The Raw Foods? Foods of animal and plant origin are in direct contact with air, soil and water and get contaminated with the microorganis

what is granna