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 about the Yeast - Saccharomyces?
Classification
Kingdom - Mycetae
Division - Amastigomycota
Class - Ascomycetes
Order - Endomycetales
Family - Saccharomycetaceae
Genus - Saccharomyces
Yeasts are unicellular organisms, which are usually spherical or oval in shape as can be seen in Figure above. Some yeasts may be cylindrical. Few common examples of yeast are Torula, Saccharomyces etc. It is present on cheese and other foods. Colonies are white, pink, moist with unbroken even edges. Cells are oval, colourless. Yeasts are facultative anaerobes and can survive well in various environments. Yeasts reproduce asexually by budding (budding yeast, e.g. Saccharomyces) or by binary fission (fission yeasts - Schizosaccharomyces).
In budding, a small outgrowth called a bud arises. Parent nucleus divides and one nucleus migrates into a bud. Cell wall material is then laid down and the bud breaks away and grows to form a daughter cell. Fission yeast divides into two new cells by elongations followed by division into two. Sexual reproduction is also observed in some yeasts. Ascospores are produced within the ascus through sexual reproduction, which are released and begin the cycle again. As discussed earlier yeasts are both beneficial and harmful. Some yeasts causes disease in human e.g. Candida albican causes urinary and vaginal infections (moniliasis) and mouth infection (thrush).
Q. Oxygen comes from the environment and carbon dioxide in the end returns to the environment. How do small animals solve the problem of taking away and bringing these molecules fr
Explain the History of Nutrition? Knowledge of human nutritional needs and relationship between diet and health was placed on a modern scientific footing only since the 19th ce
Demonstration of immune responses and biomarkers: This may be done either on the basis of sero-conversion study on paired sera samples or by challenge (protection) test.
Bile salts or bile acids are polar derivatives of constitute and cholesterol the major pathway for the excretion of cholesterol in mammals. In the liver, the cholesterol is circul
which was the first harmone discovered#
Q. What is Acid cleaning compounds? Acid-based cleaners like phosphoric acid and hydrofluoric acid are commonly used. They are very useful in removing minimal scales that
The word 'smog' consists of two words 'smoke' and 'fog'. This name was given because Fog in the atmosphere Condense on the carbon particles of smoke to form smog. There are two typ
Q. What are the functions of pantothenic and biotin acid for the body? How are these vitamins obtained? Biotin also known as vitamin B8 is a vitamin that acts in the metabolism
how energy enters and then flows through a biological system
Q. Explain the use of Benzoates acid? Benzoic acid, sodium benzoate and the parahydroxy esters (parabens) are used as preservatives. Benzoic acid and its sodium salt, sodium be
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