Species
The yeast species is used to brew ale
What is S. cerevisiae
Molecular product of the fermentation pathway
What is ethanol
What yeast sticking together is called
What is flocculation
Method of yeast reproduction
The yeast species used to brew lagers
What is S. pastorianus
The switch between the citric acid cycle and fermentation in yeast is caused by
What is aerobic to anaerobic environmental shifts
The two gene families responsible for flocculation
What are FLO and HSP
Name one of the three beers we are trying today
How S. pombe can be used in brewing
What is it can increase the efficacy of high gravity wort fermentation (especially when mixed with S. cerevisiae)
The sugar types yeasts need for fermentation
What are monosaccharides and disaccharides
Name two of the three factors which can induce flocculation
What is high temperatures, starvation, or Ca2+
Researchers hypothesize yeast survived in clay pots by
What is entering the pot's nanopores
Why S. ludwigii is capable of producing low alcohol beers
What is it cannot ferment maltose
Possible evolutionary motive for yeast to avidly ferment
What is to reduce competition from less ethanol-tolerant microorganisms
Flocculation occurs through
What is mannose binding lectin
The first person to see yeast cells and the year (+/- 10 years) that it was seen
What is Van Leeuwenhoek in 1680
Yeast species which facilitates wine and cider fermentation
What is Saccharomyces bayanus
The two enzymes implicated in fermentation after glycolysis
What are pyruvate decarboxylase and alcohol dehydrogenase
The difference between barm and trub is
What is barm originates from the foam in top fermenting ales and rub comes from the bottom sediment in lagers
Enzyme that helps activate pyruvate decarboxylase
What is Sit4