A yeast is isolated from the anaerobic bottle of a blood culture set. It grows poorly on blood and chocolate agar, but very well on Sabouraud dextrose agar. The organism rapidly assimilates trehalose at 42°C. Of the following, what is the most likely identification? Question 12 options: Candida glabrata Candida albicans Candida tropicalis Cryptococcus neoformans
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Step 1: The fact that the yeast grows poorly on blood and chocolate agar but very well on Sabouraud dextrose agar suggests that it is a yeast that prefers a more nutrient-rich environment, characteristic of Candida species. Show more…
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Which type of yeast is referred to as "brewer's yeast"? Candida insectamens Brettanomyces bruxellensis Saccharomyces cerevisiae Sporidiobolus johnsonii Fungi are ecologically important for all of the following reasons, except which one? They break down organic materials and return them to the ecosystem. All can exist in symbiotic relationships. Some can ferment and produce bread, beer, wine, cheese, and soy sauce. Some cause diseases in plants and animals. They can break down lignin.
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a. Baker's yeast, Saccharomyces cerevisiae, is responsible for beer, bread, and many of the most important discoveries in molecular genetics and cell biology. With just a little help from the human brewer, baker, and biologist, respectively. This nifty organism is spherical and 4.0 ÎĽm in diameter. What is the volume of a single S. cerevisiae cell, in units of liters? b. When S. cerevisiae is growing on glucose, hexokinase isoenzyme 2 (Hxk2) plays a key role in metabolism by phosphorylating glucose. There are an estimated 114,000 copies of Hxk2 per yeast cell, making it one of the more abundant proteins in yeast. What is the molar concentration of hexokinase?
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