Cellular Respiration

How much usable energy is extracted from one glucose molecule?

36 to 38 ATP molecules are produced for every glucose molecule

What are the products of the Krebs cycle?

6 NADH + H+ molecules, two FADH2 molecules, four carbon dioxide molecules, and two ATP molecules.

What is ATP?

Atp is the molecule that provides energy for your cells to perform work, such as moving your muscles as you walk down the street

What is the overall equation for cellular respiration?

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

Summarize the overall task of Stage 3 of aerobic respiration.

Cellular Respiration Stage III: Electron Transport. Electron transport is the final stage of aerobic respiration. In this stage, energy from NADH and FADH2, which result from the Krebs cycle, is transferred to ATP

Explain the principle of chemiosmosis.

Chemiosmosis is the movement of ions across a semipermeable membrane, down their electrochemical gradient.

Describe what happens during glycolysis. How many ATP and NADH molecules are gained during this stage?

During glycolysis, one glucose molecule is split into two pyruvate molecules, using 2 ATP while producing 4 ATP and 2 NADH molecules.

What is the purpose of cellular respiration?

The process of getting energy from your food

Defend this statement: ''Glycolysis is a universal and ancient pathway for making ATP''.

This is because this pathway occurs in the cytoplasm without the help of any organelles. Two turns are needed because glycolysis produces two pyruvic acid molecules when it splits glucose.

Explain why two turns off the Krebs cycle are needed for each molecule of glucose.

Two turns are needed because glycolysis produces two pyruvic acid molecules when it splits glucose.

What is glycolysis?

breakdown of glucose

Glycolysis

the breakdown of glucose by enzymes, releasing energy and pyruvic acid.

What is the Krebs cycle?

the sequence of reactions by which most living cells generate energy during the process of aerobic respiration

What is the main role of the mitochondria?

to produce the energy currency of the cell, ATP, through respiration, and to regulate cellular metabolism. The central set of reactions involved in ATP production are collectively known as the citric acid cycle, or the Krebs cycle.