Lec2

Question 1

Environment in which a microbial population lives

Answer 1

Habitat

Question 2

Microorganisms exist in nature in population of interacting assemblages

Answer 2

Microbial communities

Question 3

Study of microbes in their natural environment

Answer 3

Microbial ecology

Question 4

All living organisms plus physical and chemical constituent of their environment

Answer 4

Ecosystem

Question 5

Activities of microbial communities can affect the …..

Answer 5

Chemical and physical properties of their habitats

Question 6

The proportion of each species in an ecosystem

Answer 6

Species abundance

Question 7

The total number of different species present

Answer 7

Species richness

Question 8

Study of biologically mediated chemical transformation

Answer 8

Biogeochemistry

Question 9

Why bacteria form a biofilm?

Answer 9

1. Type of defense
2. Allows cells to remain in a favourable niche
3. Allow bacterial cells to live in close association with each other
4. The typical way bacterial cells grow in nature

Question 10

Biofilm can not slow the flow of liquids through pipelines. T/F?

Answer 10

F, can

Question 11

Activities of microbial communities can effect the chemical and physical Properties of their habitats.
T/F

Answer 11

T

Question 12

Metabolically related population are called

Answer 12

Guilds

Question 13

For each organism there exists at least one niche in which that organism is most successful

Answer 13

Prime niche

Question 14

Assemblages of bacterial cells adhered to a surface and enclosed in an adhesive matrix excreted by cells

Answer 14

Biofilm