2.7 Autotrophy

Question 1

The process in which energy from light is trapped and converted to chemical energy
Two part process
Light-dependent reactions: light energy is trapped and converted to chemical energy (ATP and NAD(P)H)
Light-independent reactions (carbon fixation): the energy produced in the light reactions is used to reduce CO2 and synthesize organic molecules.

Answer 1

Photosynthesis

Question 2

Location of photosynthesis in Eukaryotes

Answer 2

thylakoids of the chloroplasts

Question 3

Location of photosynthesis in Prokaryotes

Answer 3

infolded regions of the plasma membrane

Question 4

reflect green light

Answer 4

Chlorophylls

Question 5

reflect green, purple, or red light

Answer 5

Bacteriochlorophylls

Question 6

reflect orange, red, or yellow light

Answer 6

Carotenoids

Question 7

reflect blue light.

Answer 7

Phycocyanins

Question 8

reflect red light

Answer 8

Phycoerythrins

Question 9

Requires ATP and NADPH produced in the light-independent reactions

Produces carbon compounds using carbon dioxide as a carbon source

Answer 9

Light-independent Reactions(The Calvin-Benson Cycle)

Question 10

Calvin cycle requires:
Carbon source: CO2
Energy source: ATP from the ETS
Electron source: NADH produced through reverse electron flow at the ETS
Many of these bacteria can switch from chemoautotrophic metabolism to chemoheterorophic metabolism

Answer 10

Chemolithotrophy