Chapter 6
Biology: Life on Earth with Physiology · 7 exercises
Problem 1
Explain why organisms do not violate the second law of thermodynamics. What is the ultimate energy source for most forms of life on Earth?
5 step solution
Problem 2
Define potential energy and kinetic energy and provide two specific examples of each. Explain how one form of energy can be converted into another. Will some energy be lost during this conversion? If so, what form will it take?
6 step solution
Problem 3
Define exergonic reactions and endergonic reactions. How are coupled reactions useful?
4 step solution
Problem 4
Explain how enzymes act as biological catalysts.
5 step solution
Problem 5
Compare breaking down glucose in a cell to setting it on fire with a match. What is the source of activation energy in each case?
4 step solution
Problem 6
Compare the mechanisms of competitive and noncompetitive inhibition of enzymes.
5 step solution
Problem 7
Describe the structure and function of enzymes. How is enzyme activity regulated?
4 step solution