27

30) What is the significance of the conversion of pyruvate to lactate during  
       fermentation? 
 

A) Pyruvate becomes available to enter the mitochondrial matrix 

B) The citric acid/Krebs cycle is initiated 

C) NAD+ is regenerated for use in glycolysis 

D) ATP is produced 

E) The energy in pyruvate is used up 

 
31) The first process in breaking down glucose is 
          A) Krebs cycle 
 B) 

Fermentation 

 C) 

Chemiosmosis 

 D) 

Glycolysis 

E) Preparatory Step 

 
32) Which of the following molecules can be modified to enter the citric  
       acid/Krebs cycle? 
          A) Pyruvate 
 

B) Amino Acids 

C) Fatty Acids 

D) None of the above 

E) All of the above 

 
33) Because one strand of the double-stranded helix is found in each daughter cell,  
      the replication process is called 
 A) 

Proofreading 

 B) 

Polymerizing 

 C) 

Semiconservative 

 D) 

Redundant 

 E) 

Duplication 

 
34) In a DNA molecule, base pairing occurs between: 

A) Adenine and thymine 
B) Adenine and guanine 
C) Guanine and uracil 
D) Thymine and cytosine 

E) Adenine and uracil 

 
35) During which phase of the eukaryotic cell cycle does DNA and chromosome  
       replication occur? 
 

A) The S phase of interphase 

B) The G1 phase of interphase 

C) The mitotic phase 

 D) 

Cytokinesis 

E) The G2 phase of interphase