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!
Haptotaxis - Modes of Cell Movement
Haptotaxis considers to the directed movement of cells in response to a concentration gradient of an adhesive molecule that might be present in the extra cellular matrix. The adhesive material is not in solution. The cell would constantly form or break adhesions with such molecules and move from the region of low concentration of the molecule to locate of its higher concentration. Poole and Sternberg (1982) provided evidence that pronephric duct cells in salamander embryos move under the regulation of haptotaxis.
The pronephric duct rudiment separates from the dorsal mesoderm like a solid cord of cells and it is at first seen near the head of the embryo. Along with further development of embryo, this rudiment ultimately elongates towards the cloaca in which urine is excreted. Studies have shown that the enzyme alkaline phosphatase may be the adhesive molecule that regulates the migration of propheric duct rudiment.
Endothelium is a source of vasoconstrictor factor also. The best characterized of these are the endothelins. Endothelium produces only ET1. Unlike NO, which is released rapidly in
Plaque Assessment Microbial films have been known to form on inert biomaterial surfaces in an aqueous environment. Implants placed in the oral cavity are no exception and repre
Vapour Pressure The intermolecular forces in a liquid prevent most molecules from escaping from the surface. However, due to molecular collisions, some molecules have sufficien
Q. What is S shaped incision? The S - shaped incision is indicated where a papilla needs to be developed and was first described by Palacci. This type of incision is essentiall
Which of the following is a false statement regarding prokaryotic and eukaryotic core promoters? A. The core promoters of eukaryotic genes have more recognition elements for ge
Define Muscular strength component for physical fitness? It is the ability of a muscle to exert force for a brief period of time. Upper-body strength, for example, can be measu
Check Screws- Check screw access holes for closure. If screw access holes are uncovered, such as the bar-retained dentures, make sure that are free from debris. If screws can b
As heart failure sets in, there is activation of RAS (Fig 2.1). Adrenergic stimulation of beta-1 receptors in juxtaglomerular apparatus of the kidneys results in release of renin.
Q. Which kind of chemical bond maintains the pairing of each chain in the DNA molecule? To form the DNA molecule, purine bases bind to pyrimidine bases by intermolecular bonds
Normal 0 false false false EN-IN 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: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd