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!
Tracheoles - Respiration
The tracheal system consists of an air filled system of tubes - the tracheal tubes that branch repeatedly until they become fine as capillaries, and are called tracheoles. The tracheolar endings arc in close proximity to the cells of the body and sometimes they indent into the plasma membrane giving the impression that they actually enter the cells. Trachea varies in diameter from 1-2 mm and the diameter of tracheoles is between 0.6-0.8 mm. In the larger tracheae, thickenings known as taenidia in the cuticular lining prevent the tubes from collapsing. The walls of the tracheae become progressively thinner as they branch so that the tracheolar endings are only 5, μn in diameter. Figure shows the arrangement of tracheal system in some insects.
Figure: Some modifications of the tracheal system in insects. (a) The basic pattern, (b) mechanically ventilated air sacs, (c) terminal spiracles in aquatic insects.
Q. International Codes used for system of binomial nomenclature? In 1753 Linnaeus suggested a system of binomial nomenclature where each individual is denoted by two epithets,
What is cellular regeneration? How is mitosis related to this process? Some tissues are able to regenerate when injured. The liver, for instance, regenerates when small pieces
what is the longest cell in human body
what are the organs of respiration in lower forms of animals?
Epidemiology: This infection, although mostly occurring in cows, sometimes also occurs in buffaloes. Under natural conditions, the infection takes place through inoculation by the
Nucleic Acids Friedrich Miescher (1868) discovered the presence of these compound in protoplasm ,but Altman (1889) introduced the term Nucleic acid. These acids are the lar
How is the body of gastropods divided? The body of gastropods is separated into three main portions: a) Head, b) The visceral mass and c) Foot.
What are gene interactions? What are the three main types of gene interactions? The Gene interaction is the phenomenon in which a given phenotypical trait is conditioned by two
What are the Disadvantages of mucoperiosteal flap More traumatic - flap is raised Sutures are required and the next procedure of impression is delayed till afterthe suture
Explain about the Soil morphology Soil morphology is the description of the soil body and its general characteristics. The morphology of the soil is expressed by number, kinds
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: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd