Exam 6: Energy, Enzymes, and Biological Reactions

In order to prevent hair loss in men, one popular treatment is to use an inhibitor of the enzyme that converts testosterone to a different androgen (DHT). The inhibitors are steroids similar to testosterone that cannot be converted into DHT. How would you classify this type of inhibition? ​

A child swinging on a swing utilizes which type(s)of energy? ​

We can calculate whether a reaction is spontaneous by calculating the change in free energy and accounting for entropy. Your paycheck always lists your gross pay, net (take home)pay, and tax withholdings. Which of the following best correlates your paycheck to the changes in free energy? ​

The first law of thermodynamics states that the total disorder of a system always increases.

Define metabolism.

The removal of a phosphate group during an enzyme-catalyzed reaction takes ____.

Zhang and Cech's experiments confirmed which feature of ribozyme activity?

The discovery of ____ suggested that nucleic acids likely existed prior to proteins. ​

In an exothermic reaction, ____. ​

How does the cell overcome inhibition from irreversible inhibitors? ​

  Figure 6.1 What can be inferred from the accompanying graph? ​

Which statement is a part of the first law of thermodynamics? ​

Which equation is used to calculate the free energy associated with a reaction? ​

Which two factors determine whether a reaction is spontaneous?

When an enzyme-catalyzed reaction reaches equilibrium ____. ​

Which system is considered an open system? ​

What is the purpose of ionic groups in the active sites of enzymes? ​