Spiracular control - respiration, Biology

Assignment Help:

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.


Related Discussions:- Spiracular control - respiration

What is the digestive enzyme that acts within the stomach, What is the dige...

What is the digestive enzyme that acts within the stomach? Which type of food does it digest? What are the cells that produce that enzyme? The digestive enzyme that acts in the

Nudation - processes in succession, Nudation - Processes in Succession ...

Nudation - Processes in Succession The first step or requirement is the availability of the right kind of habitat, primary succession takes place in a bare area, that is, with

Eutrophication - effect on water bodies, Eutrophication - Effect on Water B...

Eutrophication - Effect on Water Bodies Moderate quantities of sewage decay naturally in a water body and water gets purified after some time. But the problem arises when the

Preservation of tooth structure, Q. Preservation of Tooth Structure? Fi...

Q. Preservation of Tooth Structure? Fixed partial dentures have been considered the standard of treatment prior to advent of implant therapy. However, to obtain optimal esthe

What is a species?, What is a species? The species is a set of living b...

What is a species? The species is a set of living beings able to cross among themselves generating fertile offspring. This concept though does not apply to individuals of ex

Which joint is stronger-the shoulder or hip joint, In general compare and c...

In general compare and contrast the three functional classifications of joints according to movement. What are two characteristics that make synovial joints unique and different fr

Define that dna is the genetic material, How did Alfred Hershey and Martha ...

How did Alfred Hershey and Martha chase arrive at the conclusion that DNA is the Genetic material?

Explain the parathyroid gland cells, A new drug named AGON-CaSR has been de...

A new drug named AGON-CaSR has been developed that is an agonist at calcium-binding sites of CaSRs (Calcium-Sensing Receptors) in plasma membranes of parathyroid gland cells.

Explain about pre-surgical prosthodontics, Pre-surgical Prosthodontics ...

Pre-surgical Prosthodontics Radiographic investigation: The radiologic investigations are critical to evaluate the bone quality and bone quantity. 1. Panoramic Radiograph

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd