Site author Richard Steane
The BioTopics website gives access to interactive resource material, developed to support the learning and teaching of Biology at a variety of levels.
Yeast cell structure
This unit contains some information to assist you in relation to other units, and some supplementary details - pass your mouse cursor over the green text (and any pictures).
Unfortunately this does not work with tablets/mobiles.
in micrometres (µm) also known as microns
[1µm = 0.001mm = 0.000001m (10-6m)]
||size / µm
||much variation between strains and growing conditions
What you should know
Yeast is a single-celled organism.
Yeast cells have a nucleus, cytoplasm and a membrane surrounded by a cell wall.
Notes on words:
The word yeast can be both singular and plural, but some people use the term yeasts for different but closely related species.
Saccharomyces cerevisiae is the scientific name of (baker's or brewer's) yeast.
Saccharomyces means 'sugar fungus': yeast grows in fruit juice, especially grape juice, and sugar is usually added to bread dough.
cerevisiae means 'of beer'.
Other related topics on this site
(also accessible from the drop-down menu above)
A little more detail
Cell structure and specialisation
In Praise of Yeast - a well-pitched presentation from Microbiologybytes
Budding of Yeast Cells - time lapse photography - (skip to 55secs-3:30)
Yeast cells (stained with methylene blue?) bobbling about for 22 seconds, not dividing, but showing some interesting internal structure