Cellular Respiration

What role does oxygen play in cellular respiration?

• Oxygen is a byproduct of cellular respiration.

• Oxygen is essential for aerobic cellular respiration as it acts as the final electron acceptor in the electron transport chain.

• Oxygen is used to break down glucose into lactic acid.

• Oxygen is not required for cellular respiration.

How does the human body obtain energy?

• By combining food and oxygen.

• By absorbing sunlight through the skin.

• By converting water into energy.

• By storing energy in fat cells.

What are the main stages of cellular respiration?

• Glycolysis, Krebs Cycle, and Electron Transport Chain

• Photosynthesis, Fermentation, and Glycolysis

• Krebs Cycle, Calvin Cycle, and Glycolysis

• Glycolysis, Lactic Acid Cycle, and Electron Transport Chain

When yeast ferments the sugar in a bread mixture (or ziploc bag), what is produced that causes the bread dough to rise?

• Oxygen

• Carbon dioxide

• Nitrogen

• Hydrogen

What is the difference between aerobic and anaerobic respiration?

• Aerobic respiration occurs without oxygen, while anaerobic respiration requires oxygen.

• Both aerobic and anaerobic respiration require oxygen.

• Aerobic respiration requires oxygen, while anaerobic respiration occurs without oxygen.

• Aerobic respiration is faster than anaerobic respiration, regardless of oxygen availability.

What is fermentation?

• A process that requires oxygen to produce energy

• An anaerobic process that allows cells to produce energy without oxygen

• A method of photosynthesis in plants

• A type of aerobic respiration in animals

What is glycolysis?

• A process that converts glucose into energy without oxygen

• The first step of cellular respiration that breaks down glucose into pyruvate, producing a small amount of ATP

• A method of protein synthesis in cells

• A type of fermentation that occurs in yeast

What is the process that converts glucose into energy?

• Photosynthesis

• Cellular Respiration

• Fermentation

• Glycolysis

What is the primary purpose of cellular respiration?

• To convert biochemical energy from nutrients into ATP.

• To produce oxygen for photosynthesis.

• To break down waste products in the cell.

• To synthesize proteins for cellular repair.

Where does the whole process of cellular respiration occur?

• nucleus

• cytoplasm

• mitochondria

• ribosomes