SI Warmup (09.28)

What is the term for metabolic pathways that release stored energy by breaking down complex molecules?

• bioenergetic pathways

• fermentation pathways

• catabolic pathways

• anabolic pathways

The molecule that functions as the reducing agent (electron donor) in a redox or oxidation-reduction reaction

• gains electrons and gains energy

• gain electrons and looses energy

• looses electrons and gains energy

• looses electrons and looses energy

Which of the following statements describes the results of this reaction?C6H12O6 + 6 O2 --> 6 CO2 + 6 H2O + Energy

• C6H12O6 is oxidized and 02 is reduced

• O2 is oxidized and H2O is reduced

• C6H12O6 is reduced and CO2 is oxidized

• O2 is reduced and CO2 is oxidized

Where does glycolysis take place in eukaryotic cells?

• mitochondria

• cytosol

• ribosomal membrane

• mitochondrial membrane

When a glucose molecule loses a hydrogen atom as the result of an oxidation-reduction reaction, the molecule becomes

• gained

• reduced

• oxidized

• lost

When a molecule of NAD+ (nicotinamide adenine dinucleotide) gains a hydrogen atom (not a hydrogen ion) the molecule becomes

• lost

• reduced

• oxidized

• gained

In addition to ATP, what are the end products of glycolysis?

• CO2 and H2O

• NADH and pyruvate

• pyruvate and FADH2

• FADH2 and NADH

In glycolysis, for each molecule of glucose oxidized to pyruvate

• 6 molecules of ATP are used and 4 molecules of ATP are produced.

• 4 molecules of ATP are used and 2 molecules of ATP are produced.

• 2 molecules of ATP are used and 4 molecules of ATP are produced.

• 4 molecules of ATP are used and 6 molecules of ATP are produced.

A molecule that is phosphorylated

• has an increased chemical reactivity; it is primed to do cellular work.

• is NOT primed to do cellular work

• has a decreased chemical reactivity

• has an increased chemical reactivity; but it is NOT primed to do cellular work

The process by which a proton gradient is used to create ATP

• oxidative phosphorylation

• chemiosmosis

• glycolysis

• ETC