Cellular Respiration Concepts and Processes

The video explains how food, like a potato, provides energy through cellular respiration. It details the process of cellular respiration, which converts glucose into ATP, the cell's energy currency. The process involves glycolysis, the Krebs cycle, and oxidative phosphorylation. ATP is produced and used for cellular work, with by-products like CO2 and water. The video also covers the role of enzymes and the importance of oxygen in the electron transport chain.

What is the primary way the body generates energy from food?

• Cellular respiration

• Combustion

• Photosynthesis

• Fermentation

What is the chemical equation for cellular respiration?

• C6H12O6 + 6O2 → 6CO2 + 6H2O

• C6H12O6 + 6O2 → ATP + 6CO2 + 6H2O

• ATP + 6CO2 + 6H2O → C6H12O6 + 6O2

• 6CO2 + 6H2O → C6H12O6 + 6O2

What is ATP often referred to as in the context of cellular energy?

• Energy storage

• Energy currency

• Energy generator

• Energy converter

Which of the following is NOT a step in cellular respiration?

• Oxidative Phosphorylation

• Glycolysis

• Photosynthesis

• Krebs Cycle

What is the main product of glycolysis?

• Pyruvate

• Acetyl CoA

• Lactic acid

• Citric acid

Where does the Krebs Cycle occur within the cell?

• Cytoplasm

• Nucleus

• Mitochondria

• Ribosome

What is the role of NADH and FADH2 in cellular respiration?

• They transport electrons

• They store energy as ATP

• They break down glucose

• They convert pyruvate to acetyl CoA

What is the final electron acceptor in the electron transport chain?

• ATP

• Oxygen

• Water

• Carbon dioxide

What happens if oxygen is not available for the electron transport chain?

• More ATP is produced

• The system gets clogged

• ATP synthesis continues

• The Krebs Cycle speeds up

What are the by-products of cellular respiration?

• Oxygen and ATP

• Carbon dioxide and water

• Glucose and oxygen

• ATP and glucose