Cellular Respiration – Glycolysis and the Citric Acid Cycle, Mitochondrial Transport – Flashcards

How many NADH are produced by glycolysis?

In glycolysis, ATP molecules are produced by _____.

Which of these is NOT a product of glycolysis?

In glycolysis, what starts the process of glucose oxidation?

In glycolysis there is a net gain of _____ ATP.

What is the reactant of the citric acid cycle?

In the citric acid cycle, ATP molecules are produced by _____.

Which of these is NOT a product of the citric acid cycle?

For each glucose that enters glycolysis, _____ acetyl CoA enter the citric acid cycle.

For each glucose that enters glycolysis, _____ NADH + H+ are produced by the citric acid cycle.

In cellular respiration, most ATP molecules are produced by _____.

The final electron acceptor of cellular respiration is _____.

During electron transport, energy from _____ is used to pump hydrogen ions into the _____.

ATP synthase

The proximate (immediate) source of energy for oxidative phosphorylation is _____.

What happens to the molecule that functions as the reducing agent (electron donor) in a redox or oxidation-reduction reaction?

True or False: NAD+ is reduced to NADH during both glycolysis and the citric acid cycle.

Where does glycolysis takes place?

The ATP made during glycolysis is generated by

The oxygen consumed during cellular respiration is involved directly in which process or event at the end?

Which process in eukaryotic cells will proceed normally whether oxygen (O2) is present or absent?

Why are carbohydrates and fats considered high energy foods?

Substrate-level phosphorylation accounts for approximately what percentage of the ATP formed during glycolysis?

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

Starting with one molecule of glucose, the "net" products of glycolysis are

In glycolysis, for each molecule of glucose oxidized to pyruvate, how many molecules of ATP are used and how many molecules are produced?

True or False: A molecule that is phosphorylated has an increased chemical reactivity; it is primed to do cellular work.

Why is glycolysis described as having an investment phase and a payoff phase?

In the presence of oxygen, the three-carbon compound pyruvate can be catabolized in the citric acid cycle. First, however, the pyruvate 1) loses a carbon, which is given off as a molecule of CO2, 2) is oxidized to form a two-carbon compound called an acetyl group, and 3) is bonded to coenzyme A. These three steps result in the formation of what 4 products?

During cellular respiration, acetyl CoA accumulates in which location?

For each molecule of glucose that is metabolized by glycolysis and the citric acid cycle, what is the total number of NADH + FADH2 molecules produced?

Cellular respiration harvests the most chemical energy from which of the following?

Where are the proteins of the electron transport chain located?

In chemiosmotic phosphorylation, what is the most direct source of energy that is used to convert ADP + Pi to ATP?

Energy released by the electron transport chain is used to pump H+ ions into which location?

What is the result when hydrogen ions are pumped from the mitochondrial matrix across the inner membrane and into the intermembrane space?

Where is ATP synthase located in the mitochondrion?

It is possible to prepare vesicles from portions of the inner membrane of the mitochondrial components. Which one of the following processes could still be carried on by this isolated inner membrane?

Which process produces the most ATP when glucose (C6H12O6) is completely oxidized to carbon dioxide (CO2) and water?

What is the immediate energy source that drives ATP synthesis by ATP synthase during oxidative phosphorylation?

Which metabolic pathway is common to both fermentation and cellular respiration of a glucose molecule?

The final electron acceptor of the electron transport chain that functions in aerobic oxidative phosphorylation is...

phosphoglycerate kinase

fermentation