Lecture 17: Microbial Metabolisms

Question 1

what is the sum of all biosynthesis

Answer 1

anabolism

Question 2

organotroph

Answer 2

reducing power is organic chemicals

Question 3

Lithotroph

Answer 3

reducing power is inorganic chemicals

Question 4

heterotroph

Answer 4

carbon source is organic compound

Question 5

Autotroph

Answer 5

carbon source is CO2

Question 6

what metabolic class can perform fermentation

Answer 6

chemorganotrophs

Question 7

homofermentation

Answer 7

produce 1 fermentation product

Question 8

heterofermentation

Answer 8

produce 2 different fermentation products

Question 9

what is the role of the organic compound during fermentation

Answer 9

donate & accept electrons

Question 10

why is fermentation not anaerobic respiration

Answer 10

because there is no respiratory chain

Question 11

what is the oxidize electron donor

Answer 11

glucose

Question 12

what is the external electron acceptor

Answer 12

oxygen

Question 13

what does oxidative phosphorylation yield?

Answer 13

ATP

Question 14

what does the respiratory chain generate?

Answer 14

PMF

Question 15

what is the main difference between fermentation & the respiratory chain

Answer 15

fermentation yields a lot less ATP

Question 16

what type of respiration produces the most ATP

Answer 16

aerobic

Question 17

aerobic respiration

Answer 17

O2

Question 18

anaerobic respiration

Answer 18

no O2

Question 19

what metabolic class can perform respiration

Answer 19

chemolitotrophs

Question 20

what 4 ions does chemolitotrophy use?

Answer 20

H2S, H2, Fe 2+, NH4+

Question 21

how does ATP synthase generate ATP in phototrophy

Answer 21

photophosphorylation

Question 22

oxygenic

Answer 22

produces O2 as an end product

Question 23

Anoxygenic

Answer 23

doesn’t produce O2 as an end product

Question 24

what does oxygenic products use as a electron donor?

Answer 24

H2O

Question 25

photopigment

Answer 25

concentrated clusters of specialized structures (photopigments)

Question 26

Autotrophy needs to…

Answer 26

need to fix CO2 to accumulate biomass

Question 27

nitrogen fixation

Answer 27

fixing nitrogen to be used as protein

Question 28

what do bacteria & archaea fix for agricultural use

Answer 28

N2

Question 29

what does the calvin cycle yield?

Answer 29

sugar

Question 30

nitrogen fixation converts ( ) to ( )

Answer 30

N2 - N3

Question 31

T or F: nitrogen fixation requires energy

Answer 31

true

Question 32

what does ATPase do?

Answer 32

generates lots of ATP