3. Energy & Cell Processes

Which of the following are enzymes that break down proteins?

Which of the following statements correctly describe(s) the role or roles of heat in biological reactions?

Which of the following statements about hyaluronidase is correct?

Enzymes usually function best at an optimal pH and temperature. The following graph shows the effectiveness of two enzymes at various temperatures.(c) From what you know about enzyme structure, explain why the rate of the reaction catalyzed by enzyme A slows down at temperatures above 40°C (140°F).

Which of the following statements about enzymes is incorrect?

If an enzyme in solution is saturated with substrate, the most effective way to obtain a faster yield of products is toa. add more of the enzyme.b. heat the solution to 90°C.c. add more substrate.d. add a noncompetitive inhibitor.

Enzyme activity is affected by pH because __________.

Which of the following is not a main role for exoenzymes in the disease process?

Enzymes usually function best at an optimal pH and temperature. The following graph shows the effectiveness of two enzymes at various temperatures.(b) One of these enzymes is found in humans and the other in thermophilic (heat-loving) bacteria. Which enzyme would you predict comes from which organism?

Enzymes usually function best at an optimal pH and temperature. The following graph shows the effectiveness of two enzymes at various temperatures. (a) At which temperature does enzyme A perform best? Enzyme B?

How does pH affect enzyme-catalyzed reactions?a. Protons serve as substrates for most reactions.b. Energy stored in protons is used to drive endergonic reactions.c. Proton concentration increases the kinetic energy of the reactants, enabling them to reach their transition state.d. The concentration of protons affects an enzyme's folded structure and reactivity.

Which of the following statements about the active site of an enzyme is correct?