Prokaryotic adaptations

Question 1

phototrophs

Answer 1

obtain energy from light

Question 2

chemotrophs

Answer 2

obtain energy from chemicals

Question 3

autotrophs

Answer 3

organisms that only need co2 or related compounds as a carbon source

Question 4

heterotrophs

Answer 4

require at least one organic nutrient, such as glucose, to make other organic compounds

Question 5

4 major modes of nutrition

Answer 5

1. photoautotroph
2. chemoautotroph
3. photoheterotroph
4. chemoheterotroph

Question 6

Photoautotroph energy source

Answer 6

light

Question 7

photoautotroph carbon source

Answer 7

CO2, HCO3-, or related compound

Question 8

photoautotroph types of organisms

Answer 8

photosynthetic prokaryotes (e.g. cyanobacteria), plants, certain protists (e.g. algae)

Question 9

chemoautotroph energy source

Answer 9

inorganic chemicals (such as H2S, NH3 or FE2+)

Question 10

chemoautotroph carbon source

Answer 10

CO2, HCO3-, or related compound

Question 11

chemoautotroph types of organisms

Answer 11

unique to certain prokaryotes (e.g. sulfolobus)

Question 12

Photoheterotroph energy source

Answer 12

light

Question 13

photoheterotroph carbon source

Answer 13

organic compounds

Question 14

photoheterotroph types of organisms

Answer 14

unique to certain aquatic and salt-loving prokaryotes (e.g. Rhodobacter, chloroflexus)

Question 15

chemoheterotroph energy source

Answer 15

organic compounds

Question 16

chemoheterotroph carbon source

Answer 16

organic compounds

Question 17

chemoheterotroph types of organisms

Answer 17

many prokaryotes (e.g. clostridium) + protists, fungi, animals, some plants