Cellular Respiration Concepts

The video explains cellular respiration, highlighting the role of mitochondria and the biochemical processes involved. It covers glycolysis, the Krebs cycle, and the electron transport chain, detailing how glucose is converted to pyruvate and further oxidized to produce ATP. The video emphasizes the efficiency of cellular respiration in energy production.

What do cells consume to produce their own energy?

• Nitrogen

• Water

• Oxygen

• Carbon dioxide

What is the waste product of cellular respiration?

• Glucose

• Oxygen

• Carbon dioxide

• Nitrogen

What is the primary substrate for cellular respiration in yeast cells?

• Glucose

• Pyruvate

• Lactose

• Fructose

Where does glycolysis occur in the cell?

• Endoplasmic reticulum

• Cytoplasm

• Nucleus

• Mitochondria

What is the end product of glycolysis?

• Carbon dioxide

• ATP

• Glucose

• Pyruvate

What is the name of the cycle that pyruvate enters in the mitochondria?

• Krebs cycle

• Calvin cycle

• Glycolysis

• Electron transport chain

What is produced during the Krebs cycle?

• Water

• Glucose

• Carbon dioxide

• Oxygen

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

• Carbon dioxide

• Oxygen

• ATP

• Water

How many molecules of ATP are produced from one molecule of glucose during cellular respiration?

• 12

• 24

• 48

• 36

What is the efficiency of cellular respiration in terms of ATP production?

• Very low

• Variable

• Moderate

• High