Definitions

Question 1

Define micro-organisms

Answer 1

They are small living things

Question 2

Define autotrophic

Answer 2

It means an organism makes its own food

Question 3

Define chemosynthesis

Answer 3

It is the production of food using energy released from chemical reactions

Question 4

Define heterotrophic

Answer 4

It means an organism takes in food made by other organisms

Question 5

Define saprophytes

Answer 5

They are organisms that take in food from dead organic matter

Question 6

Define parasites

Answer 6

They are organisms that take in food from a live host and usually cause harm

Question 7

Define pathogenic bacteria

Answer 7

They are bacteria that cause disease

Question 8

Define antibiotics

Answer 8

They are chemicals produced by micro-organisms that stop the growth of, or kill, other micro-organisms without damaging human tissue.

Question 9

Define batch culture

Answer 9

It is the growth of cells in a sealed container (or bioreactor) over a short period of time and under ideal conditions until all the nutrients are used up

Question 10

Define bioreactor

Answer 10

It is a vessel or container in which living cells or their products are used to make a product

Question 11

Define continuous flow

Answer 11

Continuous flow food processing is the growth of cells in an open container (or bioreactor), where nutrients are added and the end products are removed all the time at a rate that maintains the volume of liquid and the number of cells