Module 3

Question 1

Catabolism

Answer 1

obtain energy from breakdown of complex molecules (“break things”)

Question 2

Anabolism

Answer 2

synthesize cellular material from smaller parts (“build things”)
sum of all biosynthesis

Question 3

You are studying the metabolism of new bacterium. If you are looking at how the bacterium synthesizes complex molecules, you are studying

Answer 3

anabolism and biosynthesis

Question 4

Energy, E-donor, Carbon for photo auto troph

Answer 4

Light
N/A
CO2

Question 5

Energy, E-donor, Carbon for photo hetero troph

Answer 5

light
N/A
organic chemical

Question 6

Energy, E-donor, Carbon for photo litho auto troph

Answer 6

light
inorganic
CO2

Question 7

Energy, E-donor, Carbon for photo organo hetero troph

Answer 7

light/chem
organic
organic chemical

Question 8

Energy, E-donor, Carbon for chemo litho auto troph

Answer 8

chemical
inorganic
CO2

Question 9

Energy, E-donor, Carbon for chemo litho hetero troph

Answer 9

chemical
inorganic
organic chemical

Question 10

Energy, E-donor, Carbon for chemo organo auto troph

Answer 10

chemical
organic
CO2

Question 11

Energy, E-donor, Carbon for chemo organo hetero troph

Answer 11

chemical
organic
organic chemical

Question 12

Which has carbons, inorganic or organic molecules

Answer 12

organic has
inorganic does not have

Question 13

Microbes store

Answer 13

electrons

Question 14

Enzymes _______ the ________ energy

Answer 14

lower
activation

Question 15

Microbes can breakdown

Answer 15

carbohydrates

Question 16

Breaking down carbohydrates requires ________ but

Answer 16

energy
generates electrons and energy

Question 17

Microbes can breakdown other

Answer 17

organic macromolecules

Question 18

What organic compounds can provide energy to bacteria

Answer 18

glucose
cellulose
DNA
milk casein
milk fat

Question 19

Microbes generate energy using

Answer 19

respiration

Question 20

Microbes generate energy by

Answer 20

oxidizing an electron donor (glucose)

Question 21

During respiration electrons are transferred to

Answer 21

an external electron acceptor

Question 22

External electron acceptor in aerobic and anaerobic respiration

Answer 22

oxygen (aerobic)
something else (anaerobic)

Question 23

As electrons move through the electron transport chain a ________ is established across the __________

Answer 23

proton gradient
membrane

Question 24

The proton gradient is used to

Answer 24

generate proton motive force

Question 25

The proton motive force is used to

Answer 25

generate ATP

Question 26

The overall process of microbes generating energy using respiration is known as

Answer 26

oxidative phosphorylation

Question 27

Oxidative yields ______ amounts of ________

Answer 27

large ATP

Question 28

Respiration happens in the _______ or ________ of _________

Answer 28

presence (oxic) absence (anoxic) oxygen

Question 29

The terminal electron acceptor is _______ or _________

Answer 29

oxygen something else

Question 30

Terminal electron acceptors that are not oxygen

Answer 30

nitrate sulphate any metal ions (ferric, manganic, selenate, arsentate) organic compounds: fumarate CO2 (methane)

Question 31

Under aerobic conditions you can yield about how much ATP

Answer 31

38 ATP

Question 32

The most ATP you can yield is with

Answer 32

oxygen as the terminal electron acceptor

Question 33

Fermenation

Answer 33

the breakdown of organic compounds

Question 34

Different pathways involved in fermentation

Answer 34

glycolysis (glucose) citric acid cycle (pyruvate) glycoxylate cycle (2 carbon)

Question 35

Fermentation does not require _______ but can

Answer 35

oxygen occur in the presence of oxygen

Question 36

Fermentation results in

Answer 36

the excretion of reduced molecules

Question 37

Waste products of fermentation can include

Answer 37

organic acid alcohol CO2

Question 38

3 end goals of fermentation

Answer 38

substrate-level phosphorylation ATP directly synthesized from an energy-rich intermediate regeneration of NAD+

Question 39

Diversity of fermentation: what substrates can be fermented

Answer 39

sugars amino acids fatty acids aromatic compounds

Question 40

During fermentation the ________ compound acts as both the _______ and the _________

Answer 40

organic electron donor electron acceptor

Question 41

Fermentation does not require an

Answer 41

external electron acceptor

Question 42

Fermentative organisms lack a

Answer 42

respiratory chain

Question 43

2 types of fermentation and their end products

Answer 43

homofermentation: produce 1 fermentation product heterofermentation: produce 2 different fermentation products

Question 44

Fermentation is not

Answer 44

anaerobic respiration

Question 45

Which of the following is not a condition for fermentation to occur for ? Insufficient amount of appropriate final electron acceptor Absence of genes tencoding complexes and electron carriers in the electron transport system Incomplete Krebs/TCA cycle Presence of an inorganic electron donor

Answer 45

presence of an inorganic electron donor

Question 46

About how much ATP is produced in fermentation

Answer 46

2 ATP

Question 47

Anaerobic respiration, fermentation, aerobic respiration in order of least to most ATP yield

Answer 47

Fermentation < anaerobic < aerobic

Question 48

Fermentation is not

Answer 48

anaerobic respiration