what is microbiology

Question 1

what is microbiology

Answer 1

-the study of micro-organisms to small to be see by the naked eye

Question 2

how do microbes live

Answer 2

in microbial communities

Question 3

what 5 impacts do microbes have on humans

Answer 3

disease
food
agriculture 
energy/environment 
industrial/biotechnology

Question 4

what is disease caused by

Answer 4

pathogens

Question 5

what is disease controlled by

Answer 5

vaccination,antibiotics or good hygiene

Question 6

how do microbes come into food

Answer 6

they are within food material that contain microbiological activity such as cheese,yogurt etc.
they however grow well within food and can grow to the point which is harmful to the human body

Question 7

how is agriculture involved in microbiology

Answer 7

n2 fixation
nutrient cycling
animal husbandry

Question 8

how are microbes used in energy/ the environment

Answer 8

produce natural gas (methane CH4)
waste products can be converted to biofuels
bioremediation

Question 9

what is n2 fixation

Answer 9

the process of n2 from the air to create nh3 (ammonia) into soil fro plants to use

Question 10

what is nutrient cycling

Answer 10

this is the process where nutrient such as carbon dioxide or oxygen go through a cycle of being reproduced

Question 11

how are microbes involved in animal husbandry

Answer 11

they are present in the rumen of cattle which degrade cellulose within the rumen.

Question 12

what is bioremediation

Answer 12

this is the process of breaking down pollutants or waste products harmful to the environment.

Question 13

how are microbes industrially used

Answer 13

they produce commercial products such as insulin,growth hormones etc.

Question 14

who first described micro-organisms

Answer 14

robert hooke- 1665 who saw a blueish mold growing on leather

Question 15

who was first to describe bacteria

Answer 15

antoni van leewenhoek - 1676

Question 16

what did louis pasteur conduct

Answer 16

an experiment to see if life spontaneously came out of nowhere
which he found that the liquid where dust and microbes could get to it is where life developed

Question 17

what are koch’s postulates

Answer 17

• find the bacterium in every case of the disease
• ability to isolate the bacterium from the host and grow it in pure culture
• show that the bacteria cultured causes the same disease in a health host
• the same bacterium has to be re-isolated form the second host

Question 18

what was the purpose of koch’s postulates

Answer 18

to establish a relationship between pathogen and disease