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

Explain activators, Activators Activity  of many  enzymes is  influence...

Activators Activity  of many  enzymes is  influenced by  certain ions called as activators. Large number of enzymes such as hexokinase that require ATF are also in need of diva

What is the difference between bacterial and animal cells, Q. Concerning th...

Q. Concerning the presence of the nucleus what is the difference between bacterial and animal cells? Animal cells (cells of living beings of the kingdom Animalia) have an inte

Define about the iodine toxicity, Define about the Iodine Toxicity? A w...

Define about the Iodine Toxicity? A wide range of iodine intakes is tolerated by most individuals, owing to the ability of the thyroid to regulate total body iodine. This toler

Morphological changes - floral induction, Morphological Changes - Floral In...

Morphological Changes - Floral Induction Some of the morphological changes that accompany floral induction are: Change in the shape of meristem, Increase in the ra

Explain the bioavailability of nicotinic acid, Explain the Bioavailability ...

Explain the Bioavailability of Nicotinic Acid? We have already learnt earlier that niacin is provided in the diet primarily as the pyridine nucleotides-NAD and NADP. In additio

Phototropism - root and shoot morphogenesis, Phototropism - Root and Shoot ...

Phototropism - Root and Shoot Morphogenesis  Paratonic growth movement of part of a plant in response to light, e.g. bending of stems of indoor plants towards a window, brough

How the dna nanoarchitecturing works, Q. How the DNA nanoarchitecturing wor...

Q. How the DNA nanoarchitecturing works? DNA Nano architectures constructs that can be self-assembled from branched DNA molecules. Their components can be simple branched speci

Becoming online tutor, how can i work with u as an online biology tutor?

how can i work with u as an online biology tutor?

Chilling and flower induction, Chilling and Flower Induction Some plan...

Chilling and Flower Induction Some plants flower only after passing a winter season. For example, winter wheat is sown in the autumn for harvest in the following summer. It ne

Explain isolated chloroplast thylakoids, In an experiment, isolated chlorop...

In an experiment, isolated chloroplast thylakoids were incubated at pH 4.0 with ADP and inorganic phosphate (Pi) added to the medium and then transferred to a medium having pH 8.0.

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