Cellular Respiration Review

What is the main job of the electron carriers in cellular respiration? 

• Transport electrons and hydrogen atoms to the electron transport chain 
• Capture energy throughout the process of cellular respiration
• Provide the reactants for the process of cellular respiration
• Pump positive hydrogen ions and shuttle electrons across the electron transport chain and contribute to chemiosmosis

How many ATP molecules are produced during complete breakdown of glucose in a liver cell?

• 34

• 36

• 38

• 39

This process uses NADH and FADH2 to produce ATP

• fermentation

• glycolysis

• krebs cycle

• oxidative phosphorylation

H⁺ move down their concentration gradient by ___________ back into the matrix.

• osmosis

• facilitated diffussion

• simple diffusion

• active transport

The final electron acceptor in electron transport chain is

• NAD⁺

• FAD

• Oxygen

• Water

Hydrogen ions are pumped from the __________ to the ___________.

• matrix; intermembrane space

• intermembrane space; matrix

• matrix; cytoplasm

• intermembrane; cytoplasm

After the Krebs Cycle only a small portion of the energy of glucose has been converted to ATP. At this point the majority of usable energy is contained in

• NADH and FADH₂
• Carbon Dioxide 
• Acetyl-CoA
• Citrate

Prior to entering the Krebs Cycle, each pyruvate molecule loses electrons, hydrogen ions, and a carbon, forming an energy-rich molecule of

• Acetyl-CoA
• Citrate
• Oxaloacetate
• Malate

How many NADH molecules are produced by a molecule of glucose through the Krebs' Cycle?

• 2
• 3
• 4
• 6

Where does glycolysis take place in the cell?

• Mitochondria
• Cytosol
• Cell Membrane
• Mitochondrial Matrix