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!
Define Capsule Staining (Anthony Staining Method)?
A rigid, well-organized gelatinous layer called capsule is present outside the cell wall of many bacteria e.g. Streptococus pneumoniae, Clostridium perfringens and Klebsiella pneumoniae. It is mostly made up of polysaccharide (homo or hetero-polysaccharide) though in few it is proteinaceous in nature, e.g., in Bacillus anthracis it consists of poly-D-glutamic acid. The ability to form capsule is genetically determined. Capsule is not required for reproduction or growth of bacteria though it confers several advantages:
1. It protects the bacteria from phagocytosis by host phagocytes, so it contributes to the virulence of bacteria, e.g. Streptococcus pneumoniae.
2. It provides protection against dessication.
3. It helps the bacteria in attachment to host tissues e.g. in Streptococcus mutans capsule helps in attachment to the surface of the teeth and thus causing dental caries.
4. Capsule may be used as a source of nutrition by S. mutans.
5. Viscosity of a capsule may help in inhibiting the movement of nutrients out of the cell.
6. Capsule also exclude bacterial viruses and most hydrophobic toxic materials such as detergents.
Fate of the germ layers In cnidarians and ctenophores, all the cell types develop from either ectoderm or endoderm. Similarly all the tissues and organs in the rest of the ani
Simple interrupted technique of Suturing The simple loop is the most commonly used technique in dentistry and is routinely used to adapt tension free, mobile surgical flaps.
Explain the repair mechanisms of brain Scientists are just beginning to understand how these innate repair mechanisms might be harnessed to treat disease. On leading edge of th
Approximate Composition of Human Tissue Table gives the approximate composition of human tissue. We all know that carbon, oxygen, hydrogen are present in water and other organ
Taeniasis Taeniasis is a zoonotic disease caused by specific cestodes. The two parasites of major importance are Taenia saginata and T. solium. Both in their adult forms, are
State in brief about the alexander Luria Luria adopted or developed these items over the course of many years, Christensen published them in English but without standardisatio
Azotobacter Azotobacter is known to possess the following two mechanisms to protect its nitrogenase from oxygen inhibition. Respiratory protection and Confor
Define the different causes of under nutrition ? 1. Scales (Screening Tool): The basic biochemical and anthropometric parameters are used in this screening. 2. Recognizing th
Q. Describe Ventricular and Great Vessel Pressures? Ventricular Pressure RV and LV waveforms are similar in morphology but different in magnitude. The duration of systole an
Discuss how the blood sugar level is maintained at a stable level in the well fed and fasting state In the fed state, clearance of blood glucose is mainly by liver via gluc
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