Chapter 9

Question 1

Q) Cellular Respiration__,while fermentation (along with glycolysis)__.
A. Reduces pyruvate; oxidizes pyruvate
B. Serves the purpose to create ATP; serves the purpose to produce lactate or ethanol
C. Uses substrate level phosphorylation and oxidative phosphorylation to create ATP; ONLY uses substrate level phosphorylation to create ATP
D. Occurs in eukaryotes; occurs in prokaryotes
E. More than one of the above is accurate

Answer 1

A) C. Uses substrate level phosphorylation and oxidative phosphorylation to create ATP; ONLY uses substrate level phosphorylation to create ATP

Question 2

Q) What would create the most ATP through its breakdown and use through cellular respiration?
A. A molecule of glucose
B. A triglyceride
C. A nucleotide
D. An amino acid
E. Not enough information

Answer 2

A) B. A triglyceride

Question 3

Q) Which statement accurately describes enzyme regulation?
A. Competitive inhibiton is irreversible while noncompetitive inhibition is reversible
B. Noncompetitive inhibition can be overcome by increasing substrate concentration
C. Noncompetitive inhibition mimics the size, shape, and charge of the substrate when binding to an allosteric site
D. In the cooperative binding model, an enzyme has a lower affinity for the substrate when there are lower concentrations of it
E. More than one choice above is correct

Answer 3

A) D. In the cooperative binding model, an enzyme has a lower affinity for the substrate when there are lower concentrations of it

Question 4

Q) Which two statements accuratelt describe glycolysis?
A. NADH is reduced; CO2 is produced
B. NAD+ is reduced; 2 total ATP are formed
C. NADH is oxidized; 4 net ATP are formed
D. NAD+ is reduced; no CO2 is produced
E. More than one of the above are correct

Answer 4

A) D. NAD+ is reduced; no CO2 is produced

Question 5

Q) The products of glycolysis include everything EXCEPT:
A. Pyruvate
B. ATP
C. CO2
D. NAD+
E. There is more than one exception above

Answer 5

A) E. There is more than one exception above

Question 6

How many molecules of ATP are created through substrate level phosphorylation at the end of glycolysis?

Answer 6

4 total ATP created

Question 7

Q) What is the main purpose of fermentation
A. To produce ethanol
B. To regenerate NAD+

Answer 7

A) B. To regenerate NAD+