21: Using Microorganisms

Question 1

What is fermentation?

Answer 1

Fermentation is using the respiration of microorganisms to produce useful products

Question 2

What are fermenters

Answer 2

Fermenters are vessels used to grow microorganisms

Question 3

What is biotechnology?

Answer 3

Biotechnology is the use of microorganisms to make useful products

Question 4

What is genetic engineering?

Answer 4

Genetic engineering are techniques used to transfer genes from the cells of a donor organism to those of a recipient

Question 5

What is lactic acid bacteria?

Answer 5

Lactic acid bacteria is a type of bacteria that produces lactic acid. Used in fermenting milk to make yoghurt and cheese

Question 6

What is saccharomyces cerevisiai?
(Sa-kuh-row-mai-seez seh-ruh-vi-si-ai)

Answer 6

It is a species of yeast used for making bread and alcoholic drinks

Question 7

What are Lactobacillus and Streptococcus?

Answer 7

These are 2 species of bacteria that are used as a starter culture in yoghurt-making

Question 8

What is Aseptic Precautions?

Answer 8

These are methods used to prevent contamination by unwanted microorganisms such as filtering the air and sterilising the fermenter with steam