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Flashcards in Microbiology Deck (16):
0

What two industries is yeast used in?

Brewing and baking

1

What is yeast?

Yeast is a unicellular fungi

2

What makes the dough rise?

CO2

3

What is the equation for anaerobic respiration or fermentation for yeast/plant cells?

Glucose---> 2ATP + ethanol + CO2

4

In bread making what happens to the ethanol?

It evaporates

5

What is this called:
Starch---->maltose

Malting

6

What does germinating mean?

Growing

7

What two industries is bacteria used in?

Food
Sewage

8

What food does bacteria make?

Cheese and yoghurt

9

What causes the milk to curdle?

Lactic acid

10

What is the liquid part of the milk called?

Whey

11

What is the solid part of the milk called?

Curds

12

What is the equation for lactic acid fermentation?

Lactose(sugar from milk) =
2atp +lactic acid

13

Name the sewage processes that bacteria is involved in

Biological filtration
Activated sludge

14

Describe biological filtration

The bacteria in the rocks eat the sewage that is sprayed onto the rocks in aerobic conditions and turn it into carbon dioxide and water

15

Describe activated sludge

The sewage is mixed with bacteria, the mix has air bubbles blown through it and the bacteria digest the sewage turning into harmless co2 and water