Super quiz 3

Which temperature and pH profile curves on the graphs were most likely generated from analysis of an enzyme from a human stomach where conditions are strongly acid?

curves 1 and 4

In mitochondria, exergonic redox reactions

provide the energy that establishes the proton gradient.

Glycolysis results in a net production of which of the following molecules from each molecule of glucose

2 NADH, 2 Pyruvate, and 2 ATP

Which of the following is the most correct interpretation of figure 6.1

ATP is a molecule that acts as an intermediary to store energy for cellular work.

From the enzyme-catalyzed reaction shown in figure 6.2 which of these treatments will cause the greatest increase in the rate of the reaction if the initial reactant concentration is 1.0 micromolar

Doubling the enzyme concentration

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

Early steps consume energy from ATP and later steps store an increased amount of energy from ATP and NADH

Which of the following sequences represents the correct order in which metabolic reactions occur during the complete oxidation of glucose through aerobic respiration

Glucose-> glycolysis -> pyruvate oxidation->Citric acid cycle-> electron transport chain

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

H+ concentration across the membrane holding ATP synthase.

Upon completion of glycolysis what is the taste of the majority of the potential energy contained in the original glucose molecule

It is retained as 2 pyruvate molecules

Why might a severe fever result in death if it is not brought under control

It may alter the tertiary and quaternary structures of cellular enzymes

Figure 7.2 illustrates the electron transport chain. Which of the following is initially added to the chain with the highest free energy

NADH

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

Oxygen