Mitochondrial Function and Processes

This video concludes the series on cell respiration, focusing on aerobic respiration and the electron transport chain. It explains how NADH and FADH2 donate electrons to produce ATP through oxidative phosphorylation. The video also covers the structure of mitochondria, highlighting its role in respiration and ATP synthesis.

What is the primary purpose of the electron transport chain in aerobic respiration?

• To generate oxygen

• To produce ATP

• To store energy

• To break down glucose

Which molecules donate electrons to the electron transport chain?

• NADH and FADH2

• Water and carbon dioxide

• ATP and ADP

• Glucose and oxygen

How do hydrogen ions contribute to ATP production in the mitochondria?

• By breaking down glucose

• By storing energy in the matrix

• By combining with oxygen

• By moving through ATP synthase

What is the role of oxygen in the electron transport chain?

• It is the final electron acceptor

• It acts as the initial electron donor

• It stores energy in the cristae

• It breaks down ATP

What is oxidative phosphorylation?

• The synthesis of ATP from ADP

• The breakdown of glucose

• The release of carbon dioxide

• The storage of energy in NADH

Which part of the mitochondria contains the enzymes for the electron transport chain?

• The cristae

• The intermembrane space

• The outer membrane

• The matrix

What is the function of the cristae in mitochondria?

• To increase surface area for reactions

• To store ATP

• To produce glucose

• To separate the inner and outer membranes

Where does the Krebs cycle occur within the mitochondria?

• In the outer membrane

• In the matrix

• In the cristae

• In the intermembrane space

What is the significance of the small volume of the intermembrane space?

• It allows rapid accumulation of hydrogen ions

• It stores excess ATP

• It separates the cristae from the matrix

• It provides space for glucose storage

How does the structure of mitochondria support the endosymbiotic theory?

• By having a single membrane

• By producing glucose

• By having both an inner and outer membrane

• By containing chlorophyll