Cellular Respiration

What is the purpose of ATP?

ATP fuels nearly every cellular activity, from muscle movement to active transport.

What is Cellular Respiration?

The process by which cells break down glucose to release energy (ATP).

What is the equation for cellular respiration?

C6H12O6 + 6O2 → 6CO2 + 6H2O + ATP (energy)

What is the main point of cellular respiration?

During the first 3 phases of aerobic (uses O2) respiration, high energy e- are taken from glucose and some ATP is produced. In the Electron Transport Chain (ETC), the energy from these e- is used to make a lot of ATP.

What are the main points of glycolysis?

• Glucose splits in half

• High energy e- convert NAD+ → NADH

• 2 ATP

• Location: Cytoplasm

• No O2 used

What does Pyruvate Oxidation produce?

CO2

What are the main points of Krebs Cycle (Citric Acid Cycle)?

• Location: Matric

• No O2 used

• 2 more ATP

• Make CO2

• High energy e- on NADH and FADH2

Where does ETC and Chemiosmosis occur?

Location: Inner mitochondrial membrane.

What does ETC and Chemiosmosis do? (description)

NADH and FADH2 donate high-energy electrons to power ATP production.

What does oxygen act as in ETC and Chemiosmosis?

Oxygen acts as the final electron acceptor, forming water.

What are the main points of ETC and Chemiosmosis?

• NADPH and FADH2 → (e-, ETC) O2 → (4e-, 4H+) → 2H2O… Meanwhile e- release energy to pump protons into the intermembrane space

• H+ diffuses through ATP synthase which converts ADP (30-32) + P → ATP (A LOT)

What is the equation for alcoholic anerobic respiration?

Glucose → CO2 + Alcohol + 2ATP

What is the equation for lactic acid anerobic respiration?

Glucose → 2ATP + lactic acid