Review questions, Oct 11

 

1. During the reaction C₆H₁₂O₆ + 6 O₂ ® 6 CO₂ + 6 H₂O, glucose is __________ and oxygen is ___________.
1. oxidized ........... reduced
2. reduced ............ oxidized

 

 

2. Which of the following statements does NOT describe electron transport chains and chemiosmosis?

A) Electron transport chains pumps up protons (H⁺ ions) into the intermembrane space of mitochondrion.

B) Energy stored in NADH and FADH2 is transferred to electron transport chains.

C) Dehydration synthesis of ATP occurs when protons (H⁺ ions) moves down the concentration gradient through ATP synthase.

D) It is a universal energy generating mechanism among many living organisms.

E) It generates most ATP during cellular respiration.

 

 

3. Glycolysis is process of breaking down glucose to _________.  In this process, ATP is generated via _____________.

 

A) acetyl CoA ...............substrate-level phosphorylation  

B) pyruvic acid ...................substrate-level phosphorylation

C) carbon dioxide...........substrate-level phosphorylation

D) acetyl CoA................chemiosmosis

E) pyruvic acid ...................chemiosmosis

 

 

4. The Krebs cycle is the process of breaking down the product of glycolysis into ________ via a series of _________ reactions.  

A) acetyl CoA ................... redox

B) acetyl CoA.....................endergonic

C) carbon dioxide.............. endergonic

D) acetyle CoA ..................exergonic

E) carbon dioxide ..............redox

 

 

 

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