microorganisms

Question 1

define microorganisms

Answer 1

very tiny living things that usually can only be seen using a microscope

Question 2

3 types of microorganisms

Answer 2

bacteria, virus, fungi

Question 3

3 diseases caused by virus

Answer 3

colds, influenza, chickenpox

Question 4

bad thing about viruses

Answer 4

anti biotics don’t work against them

Question 5

define vaccination

Answer 5

when a harmless version of a disease is introduced into a person in order to stimulate the production of antibodies and white blood cells against the disease

Question 6

2 useful viruses

Answer 6

• some kill bad bacteria

- used in genetic engineering eg insulin

Question 7

3 diseases caused by bacteria

Answer 7

tuberculosis, food poisoning, cholera

Question 8

where are the good mutualistic bacteria located?

Answer 8

in the colon of the large intestine

Question 9

mutualism

Answer 9

when two organisms live in close association and both of them benefit from the arrangement

Question 10

the good stuff mutualistic bacteria do 4

Answer 10

• help digestion
• produce vit B and K
• prevent bad bacteria
• boost immune system by keeping bad bacteria under control

Question 11

define probiotics

Answer 11

bacteria that improve human health

Question 12

other good stuff bacteria does

Answer 12

• decompose dead plants and animals
• help recycle carbon and nitrogen
• used to produce antibiotics

Question 13

diseases caused by fungi

Answer 13

athlete’s foot, ringworm

Question 14

good uses of fungi

Answer 14

• help recycle carbon and nitrogen
• provide cholesterol-lowering medicine, and medicine to help prevent rejection of transplants
• antibiotics are based on chemicals produced by fungi

Question 15

how does pickling prevent food spoilage

Answer 15

the acid of the vinegar kills microorganisms

Question 16

how does salting and syrup prevent food spoilage

Answer 16

the salt or sugar draws water out of the microorganisms so they die

Question 17

safety when using agar plates

Answer 17

after using, place in an incubator at 120C for 30 mins. then put in general waste bin.
Because some of microoganisms that grow can be disease causing