Pentose Phosphate Pathway Oxidative phase

What is the primary function of the oxidative phase of the pentose phosphate pathway?

• To oxidize glucose 6-phosphate into ribose 5-phosphate

• To convert glucose into fatty acids

• To synthesize ATP molecules

• To generate carbon dioxide

Which molecule is produced as a reducing agent during the oxidative phase?

• Coenzyme A

• FADH2

• NADPH

• NADH

What type of sugar is ribose 5-phosphate?

• Pentose

• Triose

• Hexose

• Tetrose

What is released as a byproduct during the oxidative phase?

• Carbon dioxide

• Glucose

• Water

• Oxygen

Which enzyme catalyzes the first step of the oxidative phase?

• Lactate dehydrogenase

• Hexokinase

• Glucose 6-phosphate dehydrogenase

• Phosphofructokinase

What happens to glucose 6-phosphate in the first step of the oxidative phase?

• It is oxidized

• It is phosphorylated

• It is reduced

• It is hydrolyzed

How many NADPH molecules are produced from one glucose 6-phosphate during the oxidative phase?

• Four

• Three

• One

• Two

What is the role of NADP+ in the oxidative phase?

• It catalyzes the reaction

• It is a product of the reaction

• It serves as an electron acceptor

• It acts as a substrate

What type of reaction occurs in step two of the oxidative phase?

• Decarboxylation

• Condensation

• Hydrolysis

• Isomerization

Which enzyme catalyzes the hydrolysis in step two?

• Phosphatase isomerase

• Lactonase

• Glucose 6-phosphate dehydrogenase

• Lactate dehydrogenase