Cellular Respiration and Electron Transport Chain

Front

What is cellular respiration?

Back

Cellular respiration is the process by which cells convert glucose and oxygen into energy (ATP), carbon dioxide, and water.

Front

What are the main stages of cellular respiration?

Back

The main stages are Glycolysis, the Krebs Cycle (Citric Acid Cycle), and the Electron Transport Chain (ETC).

Front

What is the role of the Electron Transport Chain (ETC)?

Back

The ETC is responsible for transferring electrons through a series of proteins, creating a proton gradient that drives ATP synthesis.

Front

What is a proton gradient?

Back

A proton gradient is a difference in proton concentration across a membrane, which is used to generate ATP during cellular respiration.

Front

What happens during glycolysis?

Back

Glycolysis is the breakdown of glucose into pyruvate, producing a small amount of ATP and NADH.

Front

What is the final electron acceptor in aerobic respiration?

Back

The final electron acceptor in aerobic respiration is oxygen.

Front

What is the by-product of anaerobic respiration in muscle cells?

Back

The by-product of anaerobic respiration in muscle cells is lactic acid.

Front

What is the function of ATP synthase?

Back

ATP synthase is an enzyme that synthesizes ATP from ADP and inorganic phosphate, using the energy from the proton gradient.

Front

What is the significance of NADH in cellular respiration?

Back

NADH is an electron carrier that transports electrons to the ETC, playing a crucial role in ATP production.

Front

How do prokaryotes differ from eukaryotes in respiration?

Back

Prokaryotes can use various electron acceptors and can respire in more diverse environments than eukaryotes.