Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Prothoracic Gland or PTC
Prothoracic gland (PTC) or moulting gland and ecdysone or moulting hormone
The 3rd endocrine gland-prothoracic gland- is an irregular branching mass of glandular cells situated in the prothorax (segment of the thorax which bears the anterior most of its three pairs of legs), in close association along with the tracheal lubes and secretes the hormone ecdysone that has been isolated and crystallized in pure form from Calliphora and from pupa of a silkworm. It is a unique water soluble steroid and is associated closely to cholesterol. Recent studies though show that all an ecdysone is converted into P ecdysone (ecdysterone) after liberation into the haemolymph and that ecdysterone is the active moulting hormone.
Ecdysterone exerts its effect directly on those cells concerned in growth and moulting; it activates them and stimulates them to renew protein synthesis. It is believed that it acts directly on those loci in the chromosomes that are concerned with growth. It induces characteristic puffing in the giant polytene chromosomes of Diptera. These puffs are referred to be the sites for the formation of the messenger R N A required for protein synthesis.
Describe the factors that are involved in the regulation of respiration in a child who decides to hold his/her breath for as long as possible.
What is Physical Accommodation Physical Accommodation is the actual physical deformation in the lens power. It is measured in diopters, e.g., if the focussing power of the eye
What are the nutritional components of the foods we consume? The foods that we consume are composed of varying quantities of the following nutritionally important components:
Q. What is the crossing over? And In which period of meiosis does this event occur? Crossing over is the eventual exchange of chromosomal fragments among homologous chromosomes
Define Characteristics of probiotics? Are microorganism Promote a healthy intestinal microflora Ensure colonization resistance to pathogens Destruction of ge
#types
Septa prevent oxygenated and deoxygenated blood. Give reason
Define Aim of Neotaxonomy or Systematic or Biosystematics The aim of neotaxonomy or systematic or biosystematics is not only to describe, identify and arrange organisms in conv
What is circulation? Circulation is the movement of substances as nutrients and gases within blood vessels and cavities all by the organism.
Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd