microbes

Question 1

what are hyperthermophiles?

Answer 1

tolerance of high temperatures

Question 2

what are acidophiles?

Answer 2

tolerance to low pH

Question 3

what are alkalinophiles?

Answer 3

tolerance to high pH

Question 4

what are halophiles?

Answer 4

tolerance to high salinity

Question 5

what are piezophiles/barophiles?

Answer 5

tolerance to high pressure

Question 6

what is oligotrophy?

Answer 6

capable of growing at low nutrient concentrations

Question 7

what are some of the genomic adaptations of oligotrophy?

Answer 7

• smaller genomes
• fewer gene duplications
• fewer non-coding sections

Question 8

photoautotrophs

Answer 8

photosynthesise

Question 9

chemoautotrophs

Answer 9

energy from oxidation of chemicals

Question 10

photoheterotrophs

Answer 10

energy from sunlight

carbon from organic carbon source NOT CO2

Question 11

chemoheterotrophs

Answer 11

energy from oxidation of chemicals

carbon from organic carbon source NOT CO2

Question 12

example of a photoautotroph

Answer 12

cyanobacteria

Question 13

example of a chemoautotroph

Answer 13

nitrifying bacteria

Question 14

example of a photoheterotroph

Answer 14

halobacteria

Question 15

example of a chemoheterotroph

Answer 15

E. Coli (many pathogens in this catergory)

Question 16

the four different marine zones for microbial communities

Answer 16

coastal
oceanic
deep-sea
sediment

Question 17

what are the most abundant primary producers in the oceans

Answer 17

cyanobacteria

diatoms and dinoflagellates