Learn: Cellular Respiration: Glycolysis, Krebs Cycle, ETC, and Fermentation

What is the relationship between cellular respiration and photosynthesis?

The products of one process are the reactants of the other.

What does photosynthesis produce that is used in cellular respiration?

Glucose

What is the main energy currency of cells?

ATP (adenosine triphosphate)

What is the primary function of cellular respiration?

To release energy from food in the presence of oxygen.

What is the process called that occurs when oxygen is not available?

Fermentation

What are the two main types of fermentation?

Alcoholic fermentation and lactic acid fermentation.

Where does glycolysis occur in the cell?

In the cytoplasm.

What is produced during glycolysis?

2 molecules of pyruvic acid and a net gain of 2 ATP.

What is the Krebs Cycle also known as?

Citric Acid Cycle.

Where does the Krebs Cycle take place?

In the matrix of the mitochondria.

What are the end products of the Krebs Cycle?

Carbon dioxide, NADH, FADH2, and ATP.

What is the final stage of aerobic cellular respiration?

Electron transport chain.

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

Oxygen accepts electrons and protons to form water.

How many ATP molecules are produced during the electron transport chain?

About 30-32 ATP per molecule of glucose.

What is the total ATP yield from one molecule of glucose during cellular respiration?

About 36 ATP.

What happens to the remaining energy from glucose after ATP production?

It is released as heat.

What is the process of breaking down glucose called?

Glycolysis.

What is produced during alcoholic fermentation?

Ethanol and carbon dioxide.

What is produced during lactic acid fermentation?

Lactic acid.

What is the purpose of fermentation?

To regenerate NAD+ so glycolysis can continue.

What type of organisms primarily undergo alcoholic fermentation?

Yeast and some plants.

What causes muscle soreness during intense exercise?

Lactic acid buildup from lactic acid fermentation.

What is metabolism?

The combination of chemical reactions an organism undergoes to build up or break down materials.

What is the role of ATP in cells?

To store and release energy for cellular work.

What is the significance of hydrogen in cellular respiration?

Hydrogen is transferred to oxygen, releasing energy used in ATP synthesis.

What is the function of mitochondria in cellular respiration?

To convert chemical energy in food into ATP.

What is the chemical equation for cellular respiration?

Glucose + Oxygen → Carbon Dioxide + Water + ATP.