Bacteria

Question 1

Describe spore reproduction

Answer 1

1. Spore develops within the bacterium
2. Thin protein wall surrounds the spore
3. The parent cell disintegrates
4. The spore is released

Question 2

Classify bacteria by shape

Answer 2

1. Cocci (spherical) Coccus Eg. Meningitis
2. Bacillus (rod shaped) bacilli Eg. Salmonella
3. Curved spirilla (spiral) STDs

Question 3

List the advantages of bacteria

Answer 3

Produce vitamins b and k in the gut
Food production
Food supplements
Decompose waste

Question 4

List the disadvantages of bacteria

Answer 4

Diseases
Food spoilage
Contamination and food poisoning

Question 5

Growing conditions

Answer 5

Food
Oxygen
Temperature
Moisture
pH
Time

Question 6

Gram +

Answer 6

Blue
Cell wall with one layer
No flagella
Produce spores

Question 7

Gram -

Answer 7

Pink
Cell wall with two layers
Flagella
No spore production