Bio Chapter 6 Metabolism.pdf - Visual Representation...

Visual Representation Questions
1 . Figure 6.8 Look at each of the processes, and decide if it is endergonic or
exergonic. In each case, does enthalpy increase or decrease, and does entropy
increase or decrease?
(a) a compost pile decomposing: exergonic, enthalpy increase , entropy increase
(b) a chick developing from a fertilized egg: endergonic, enthalpy decrease , entropy
decrease
(c) sand art destruction: enthalpy increase , entropy increase
(d) a ball rolling down a hill: exergonic, enthalpy decrease, no change in entropy
2 . Figure 6.10 If no activation energy were required to break down sucrose (table
sugar), would you be able to store it in a sugar bowl?
3 . Figure 6.14 One ATP molecule's hydrolysis releases 7.3 kcal/mol of energy (∆G =
−7.3 kcal/mol of energy). If it takes 2.1 kcal/mol of energy to move one Na
+
across the
membrane (∆G = +2.1 kcal/mol of energy), how many sodium ions could one ATP
molecule's hydrolysis move?
Review Questions
4 . Energy is stored long-term in the bonds of _____ and used short-term to perform
work from a(n) _____ molecule.
5 . DNA replication involves unwinding two strands of parent DNA, copying each strand
to synthesize complementary strands, and releasing the parent and daughter DNA.
Which of the following accurately describes this process?
A. This is an anabolic process.
B. This is a catabolic process.
C. This is both anabolic and catabolic.
D. This is a metabolic process but is neither anabolic nor catabolic.