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June_2021_AzHomebrewers

Total questions: 15

Worksheet time: 7mins

Name
Class
Date
1.

This yeast ferments at a lower temperature.

a)

Kveik

b)

Belgian

c)

Lager

d)

Ale

e)

Candida

2.

Yeast cells reproduce during a process called ___________.

a)

Osmosis

b)

Krausen

c)

Mitosis

d)

Cytosis

3.

Which is essential for yeast reproduction?

a)

Oxygen

b)

Alcohol

c)

Diacetyl

d)

Carbon Dioxide

4.

The degree of conversion of sugar to alcohol is known as

a)

Fermentation

b)

Flocculation

c)

Attenuation

d)

Vitalization

e)

Vacation

5.

The 2 main species used to make beer are Sacchormyces______________(Lager), and Sacchormyces _____________(Ale).

a)

Pastorianus: Cervaisiae

b)

Pastorianus; Boulardii

c)

Bruxellensis: Pediococcus

d)

Cervaisiae; Pastorianus

6.

How much yeast is needed for a batch of beer, the general rule for ales is ________ viable yeast cells for every mL of wort per degree plato, Lagers require _______ viable yeast cells for every mL of wort per degree plato.

a)

.75 Million; 1.25 million

b)

1.5 million; 1 million

c)

.5 billion; .75 billion

d)

1 billion; 1.5 billion

7.

In what year was yeast first viewed under a microscope, as misidentifying the living organism as a non-living byproduct of the little-understood fermentation process?

a)

1516

b)

1680

c)

1789

d)

1840

8.

What was the name of the person who first viewed yeast as a living organism involved in the fermentation process?

a)

Louis Pasteur

b)

Adolph Coors

c)

Antoine-Laurent Lavoisier

d)

Anton van Leeuwenhoek

9.

The Reinheitsgebot (German Purity Law) was written in what year that did not include yeast as an acceptable ingredient?

a)

1487

b)

1825

c)

1516

d)

1990

10.

Which strain produces most of the worlds beer?

a)

Ale

b)

Lager

11.

White labs opened in what year?

a)

1979

b)

1986

c)

1990

d)

1995

12.

What is the latin 3 word breakdown of Saccharo-myces-Cerevisiae?

a)

Super; Fungus; Brew

b)

Sugar; Myrcene; Beer

c)

Sugar; Fungus; Beer

d)

Sugar; Fungus; Ethanol

13.

Scientists found Sacchromyces cervasisia in an ancient egyptian bakery that dated back about 5,000 years?

a)

True

b)

False

14.

Why do some brewers make a starter if manufacturer says package has pitch rates on packages?

a)

You know the yeast is alive

b)

Gives you slower and more even fermentation

c)

Increased Alcohol production

d)

Greater quantities of helpful bacteria

15.

What does lag time mean when referring to yeast?

a)

The delay between bottling and drinking your beer

b)

The delay waiting for the yeast to consume most of the simple sugars

c)

The delay between pitching yeast and start of fermentation

d)

The delay from fermentation starting to bubbling in your blowoff