BIO 160 CH 6 PRE TEST

The electron transport chain is, in essence, a series of redox reactions that conclude cellular respiration. During these redox reactions, _____. (ebook Module 6.10)

NAD+ is reduced, which then oxidizes an electron acceptor in the electron transport chain

A muscle cell deprived of molecular oxygen will convert glucose to lactic acid to _____. (ebook Module 6.13)

recycle NADH through fermentation

During glycolysis, a molecule of glucose is partially oxidized. What is the net gain of ATP and NADH for each glucose molecule? (ebook Module 6.7)

2 ATP and 2 NADH

Sodium fluoroacetate, or compound 1080, is a rodent poison that probably disrupts the citric acid cycle. In the body, the molecule is converted to a compound that prevents citrate from being used. Initially, when first exposed to this molecule, what is the theoretical energy produced per glucose molecule through the process of cellular respiration? (ebook Module 6.9)

2 ATP, 4 NADH, and 0 FADH2

In the first stage of cellular respiration, two molecules of pyruvate are produced. In the remaining stages, a number of products are produced, including _____. These stages occur in the _____. (ebook Module 6.6)

CO2 ... mitochondria

What is the purpose of embedding the electron transport chain in the membrane of a cell? (ebook Module 6.11)

The membrane is impermeable to H+.

What is the fate of the electrons that are stripped from glucose during cellular respiration? (ebook Module 6.10)

They are used to form water.

Cellular respiration completely breaks down a glucose molecule through glycolysis and the citric acid cycle. However, these two processes yield only a few ATPs. The majority of the energy the cell derives from glucose is _____. (ebook Module 6.12)

found in NADH and FADH2

Primarily, cellular respiration serves to _____. (ebook Module 6.3)

make ATP to power the cell's activities

The electron transport chain is a series of electron carrier molecules. In eukaryotes, where can this structure be found? (ebook Module 6.6)

mitochondria

Using the ATP generated during cellular respiration, the intermediates of glycolysis and the citric acid cycle can be siphoned off and used _____. (ebook Module 6.16)

to power the biosynthesis of amino acids, fats, and sugars

Fat is the most efficient molecule for long-term energy storage, even compared to carbohydrates, because _____. (ebook Module 6.15)

with their numerous hydrogen atoms, fats provide an abundant source of high-energy electrons