Oxidative Phosphorylation

During chemiosmosis

• H+ ions serve as the final electron acceptor

• a concentration gradient is generated when H+ ions are passively transported from the matrix to the intermembrane space of the mitochondrion

• energy is released as H+ ions move freely across the mitochondrial membrane

• ATP is synthesized when H+ ions move through a channel in ATP synthase

What are the stages of cellular respiration in order?

• glycolysis, oxidative phosphorylation, the citric acid cycle

• oxidative phosphorylation, glycolysis, the citric acid cycle

• glycolysis, the citric acid cycle, oxidative phosphorylation

• the citric acid cycle, oxidative phosphorylation, glycolysis

Tags

NGSS.HS-LS1-7

What does FADH2 and NADH bring to the electron transport chain?

• Oxygen

• Water

• Electron

• ATP

What enzyme in the ETC is responsible for generating the ATP molecules?

• ATPase

• ATP synthase

• Hexokinase

• none of the above

Tags

NGSS.HS-LS2-3

When protons are pumped outside the matrix, across the inner membrane...

• water is made

• a concentration gradient of H⁺ ions (protons) is created

• NADH gets reduced

• CO₂ is produced

Tags

NGSS.HS-LS2-3

Where does the electron transport chain occur?

• Nucleus

• Vacuole

• Mitochondria

• Nucleolus

In what part of the mitchondria does the electron transport chain occur?

• Inner mitochondrial membrane (folds of the mitochondria)

• Outer mitochondrial membrane

• Cytoplasm

• Ribosomes

Please indicate the correct equation(s) for Cellular Respiration. (2 answers)

• Glucose + Oxygen --> Carbon Dioxide + Water + Energy

• C₆H₁₂O₆ + O₂ --> CO₂ + H₂O + ATP

• Carbon Dioxide + Water + Energy --> Glucose + Oxygen

• C₆H₁₂O₆ + 6 O₂ --> 6 CO₂ + 6 H₂O + ATP

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-5

What does ATP synthase do?

• Create ATP in chemiosmosis.

• Break down ATP in chemiosmosis.

• Break down NADPH. 

• Create NADPH.

Which of the following processes creates the most ATP during aerobic cellular respiration?

• glycolysis

• fermentation

• electron transport chain

• Citric acid cycle