Monera 2:

Question 1

What can mutations in bacteria allow bacteria to develop

Answer 1

Antibiotic resistance

Question 2

Give an example of an ineffective bacteria

Answer 2

MRSA

Question 3

Misuse of antibiotics

Answer 3

Overuse

Failure of some patients to complete a course of antibiotics

Question 4

What happens if a patient fails to complete a course of antibiotics

Answer 4

It allowed the bacteria to survive and regrow

Question 5

Bacteria divide by..

Answer 5

Binary fission

Question 6

Binary fission if a form of

Answer 6

Asexual reproduction

Question 7

How often can binary fission take place

Answer 7

Every 20 minutes

Question 8

Name the 4 phases of the growth curve for bacteria

Answer 8

Lag phases
Log phases
Stationary phase
Decline phases

Question 9

Lag phase

Answer 9

Small numbers

Bacteria are adapting to their new environment and making enzymes

Question 10

Log phase

Answer 10

Numbers increase

Bacteria multiply - plenty of nutrients, space and low waste oxygen

Question 11

Stationary phase

Answer 11

Number stays constant
Increased competition for nutrients space and oxygen
Build up fo toxic wastes

Question 12

Decline phase

Answer 12

Numbers decreasing
Death rate increasing
Production rate slowing down

Question 13

Survival phase

Answer 13

Some can survive by producing endospores

Question 14

Bioprocessing

Answer 14

Using microorganisms to produce a product

Question 15

Bioreactor

Answer 15

A vessel in which microorganisms are used up to make a product

Question 16

Two methods of bioprocessing

Answer 16

Batch food processing

Continuous flow food processing

Question 17

Eg of batch food processing

Answer 17

Antibiotic

Yogurt

Question 18

What is single cell protein

Answer 18

A false edible protein

Question 19

Batch food processing

Answer 19

A fixed amount of nutrient medium added to the bioreactor and is inoculated with a fixed amount of bacteria
Microorganisms go through lag, log and stationary phases
Product removed at end of process
Bioreactor cleaned and sterilized

Question 20

What is batch processing used for

Answer 20

To produce small amounts of a product at different times

Question 21

Example of continuous flow food processing

Answer 21

Single cell protein

Question 22

When is continuous flow food processing used

Answer 22

To produce large amount of product

Question 23

Describe continuous flow food protein

Answer 23

The nutrients and bacteria are continuously supplied to the bioreactor
The product is steadily removed
The process is maintained at the log phase