What are yeast, Biology

Assignment Help:

Q. What are yeast?

Yeasts are unicellular fungi, which are widely distributed in nature. They are somewhat larger than bacteria. The cell length is about 10μm and the diameter is about a third of this. Most yeast is spherical or ellipsoidal. Yeasts that multiply by means of ‘budding' are known as ‘true yeasts'. Yeasts grow luxuriously at a moderate temperature in a solution of sugar in plenty of water.

Under suitable conditions the sugar is converted into alcohol and carbon dioxide is evolved. This is the reason that carbon dioxide is evolved from food materials spoiled by yeasts and pushes out corks from bottles with great force. Most of them do not develop in media containing more than 66% sugar or 0.5% acetic acid. Boiling destroys the yeast cells and spores completely. Some of the yeasts, which grow on fruits, are Saccharomyces, Candida and Brettanomyces.


Related Discussions:- What are yeast

Investigation of aortic regurgitation by serial testing, Q. Investigation o...

Q. Investigation of aortic regurgitation by Serial Testing? Serial testing is indicated in asymptomatic patients with severe AR and preserved LV function since LV dysfunction m

Name the alloys which are commonly used, Name the alloys which are commonly...

Name the alloys which are commonly used The most commonly used alloys are Ti-6Al-4V and Ti-6Al-4V extra low interstitial (ELI). Commercially pure Titanium comes in different gr

Mitochondria, MITOCHONDRIA  (Singular-  MITOCHONDRION) These are cons...

MITOCHONDRIA  (Singular-  MITOCHONDRION) These are conspicuous, hollow  sac liked  cell organelles found in all eukaryotic  cells except  mature  red  blood  corpuscles RBC s

What percentage of the offspring will have purple flowers, Purple(P) flower...

Purple(P) flowers are dominant and white(p) flowers are recessive. A homozygous dominant purple flower is crossed with a homozygous recessive white flower. what percentage of the o

Molluscus, what are the ecological importance of molluscus

what are the ecological importance of molluscus

What do you mean by the good and bad cholesterol, Q. What are the so-called...

Q. What are the so-called "good" and "bad" cholesterol? Lipoproteins are complexes made of lipids (cholesterol and triglycerides) and proteins. The lipoproteins present differe

On which organs glucagon and insulin act, Q. What are the target organs up...

Q. What are the target organs upon which glucagon and insulin act? Glucagon mainly acts upon the liver and Insulin acts generally upon all cells. Both also act upon the adipose

State the success which signifies optimum health, Success which signifies O...

Success which signifies Optimum Health The features or clinical conditions which are representative of this group are: i) No pain or tenderness in the implant upon function.

Define sepsis - nutrition during stress, Define SEPSIS - Nutrition during S...

Define SEPSIS - Nutrition during Stress? Sepsis is defined as the presence of an infection due to an identifiable organism. Bacteria and their toxins lead to a strong inflammat

What are the endocrine functions of the placenta, Q. What are the endocrine...

Q. What are the endocrine functions of the placenta? The placenta has endocrine function since it secretes the hormones estrogen and progesterone that maintain the endometrium

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd