6-Cellular Respiration and Fermentation test bank

Flashcards about Cellular Respiration and Fermentation

In the equation, C6H12O6 + 6O2 -> 6CO2 + 6H2O, ATP and heat would be on which side of the reaction?

The products because this is an exergonic reaction.

The equation, C6H12O6 + 6O2 -> 6CO2 + 6H2O (ATP + Heat), describes which of the following processes?

Cell respiration

Which of the following are the final by-products of glucose oxidation during aerobic cell respiration?

ATP, heat, and carbon dioxide

Which of the following processes will occur in the presence or absence of oxygen?

Glycolysis

Where does glycolysis take place?

Cytosol

Which occurs only in anaerobic metabolism of glucose?

Lactate fermentation

Which of the following are produced during the citric acid cycle?

ATP, NADH, and FADH2

Which of the following statements is true?

The citric acid cycle occurs in the mitochondria matrix.

Glycolysis involves 10 enzyme-catalyzed steps, that can be grouped into three phases: energy investment phase, cleavage phase, and the energy liberation phase.

TRUE

The electron transport chain consists of a series of redox reactions in which electrons are transferred to oxygen as the final electron acceptor.

TRUE

Oxygen is an excellent final electron acceptor because of its low electronegativity.

FALSE

In prokaryotic cells, the electron transport system occurs in the mitochondria.

FALSE

Fermentation is a more efficient form of energy production than aerobic respiration.

FALSE

Substrate phosphorylation occurs when protons pass through ATP synthase and combine with oxygen to make water.

FALSE

In cellular respiration, an H+ electrochemical gradient is formed so that the H+ concentration is lower in the intermembrane space than inside the matrix.

FALSE

If oxygen is present, pyruvate will be converted to acetyl CoA in the mitochondrial matrix.

TRUE

When a molecule of NAD+ gains a hydrogen atom, the molecule becomes reduced.

TRUE

Proteins and fats may be used as energy sources to drive aerobic respiration.

TRUE

During the energy investment phase of glycolysis, glucose has a decrease in free energy.

FALSE

The ability of bread to rise is mainly a function of the CO2 produced anaerobically during oxidative phosphorylation.

FALSE