ENERGY RELEASE AND CONSERVATION QUIZ

pass electrons from the oxidation of chlorophyll through an electron transport system

ferment

oxidize glucose to pyruvate

pass electrons to oxygen through an electron transport system containing cytochromes

none of these

Entner-Doudoroff pathway

tricarboxylic acid cycle

both (a) and (b)

in the Krebs cycle

in glycolysis

as a terminal electron acceptor

to provide electrons for photophosphorylation

4

3

2

1

Entner-Doudoroff

Embden-Meyerhof pathway

pentose phosphate pathway

β-oxidation

Mitochondrion

Chloroplast

Endoplasmic reticulum

Ribosome

Yeast would be unable to activate the enzymes of the Krebs cycle without ethanol

Ethanol keeps the electron transport system functioning

The process generates oxygen, which is required for glycolysis

The process regenerates NAD+, which is required for glycolysis

36

1

2

0 

acetyl-CoA

pyruvate

fructose

glucose

Complete catabolism of glucose to CO2 and HO2

Production of ethyl alcohol from glucose

Oxidation of glucose with organic molecules serving as electron acceptors

Production of energy by substrate-level phosphorylation