Micro-organisms and Bacteria Flashcards
What does BIOTECHNOLOGY mean?
Using micro-organisms (microbes) in industry to make useful products.
In biotechnology, what do we use in the BREWING and BAKING industries?
Yeast
In biotechnology, what do we use in the DAIRY industry?
Bacteria
In the brewing, baking and dairy industries, what kind of conditions do the microbes need to be kept in?
Anaerobic conditions so that the fermentation pathway takes place.
In biotechnology what industry is YEAST used?
Brewing and baking
In biotechnology what industry is BACTERIA used?
Dairy
As bacteria grows very quickly, what does this mean in industry?
This means you can spend less money growing the bacteria
What are lactic acid bacteria used in?
The production of yoghurt and cheese.
What do lactic acid bacteria feed on?
The lactose sugar found in milk
What do lactic acid bacteria do with the lactose sugar found in milk?
Convert it into lactic acid during the fermentation
What is the equation for: LACTIC ACID?
Lactose sugar—(bacteria)—> Lactic acid
What does the lactic acid do the milk?
It makes the milk ‘sour’ and causes the milk proteins to clump together making the milk thicken.
What can lactic acid be used for?
To turn milk into yoghurt or to thicken the milk in the first stage of cheese making.
What is: Lactose sugar—(bacteria)—> Lactic acid?
The equation for lactic acid.
What: makes the milk ‘sour’ and causes the milk proteins to clump together making the milk thicken?
Lactic acid.