Exam 6: Making Life Work: Capturing and Using Energy

In the metabolic pathway illustrated below, the starting material (substrateA )is converted equally to one of two end products, E or G. Use the diagram of the pathway below to answer the following questions. Letters indicate the substrates and products, and numbers indicate the enzymes. In this pathway, the intermediate, C, is a substrate for both enzyme 3 and enzyme 5 and is converted with equal efficiency to D and F. If end product E inhibits enzyme 1, which of the following would you expect to observe?

Which of the following describes catabolic reactions?

Which of the following statements is TRUE regarding enzymes?

As a cat pounces on a mouse, her muscles burn 10 units of potential energy (which the cat previously gained from eating). However, the pounce itself only required 4 units of kinetic energy. How many units of energy were dissipated as heat?

Which of the following reactions would you predict could be coupled to ATP hydrolysis to ADP + P_i?

Imagine that you walk out of your warm house on a cold winter's day. What is different between the air inside and outside of your house in this scenario?

Enzymes are typically:

Which of the following is considered a form of kinetic energy?

Compare the G value that you determined for H₂S  sulfuric acid to the G for ATP formation and discuss the possible ATP yields for this process.

The portion of an enzyme that binds specifically to the substrate, or substrates, is referred to as the _____ of the enzyme.

The energy of activation of a reaction is:

Which of the following types of inhibitor permanently alters the enzyme it inhibits?