Cellular Respiration

What is the process of breaking the outer phosphate bond of ATP called?

• Phosphorylation

• Hydrolysis

• Dephosphorylation

• Oxidation

What is the significance of the electron transport chain in cellular respiration?

• It generates the majority of ATP during cellular respiration through oxidative phosphorylation.

• It is responsible for the breakdown of glucose into pyruvate.

• It produces carbon dioxide as a waste product of respiration.

• It facilitates the conversion of ATP to ADP during glycolysis.

What is glycolysis and where does it occur?

• A process that converts glucose into energy, occurring in the mitochondria.

• The first step of cellular respiration that breaks down glucose into pyruvate, occurring in the cytoplasm.

• A method of protein synthesis that occurs in the ribosomes.

• A type of fermentation that takes place in the nucleus.

What enzyme assists ADP in cycling back into ATP when energy is available?

• ATP Synthase

• Lactate Dehydrogenase

• Hexokinase

• Phosphofructokinase

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

• They are used to synthesize glucose during photosynthesis.

• They are electron carriers that transport electrons to the electron transport chain.

• They are involved in the breakdown of fatty acids in the mitochondria.

• They act as coenzymes in the Krebs cycle.

What are the uses of energy released from ATP?

• To build new molecules, perform life activities, and power chemical reactions.

• To store genetic information in DNA.

• To transport oxygen in the blood.

• To synthesize carbohydrates from proteins.

What role does oxygen play in cellular respiration?

• Oxygen is used to produce glucose during photosynthesis.

• Oxygen acts as the final electron acceptor in the electron transport chain, allowing for the production of ATP.

• Oxygen is a byproduct of cellular respiration.

• Oxygen is required for the synthesis of proteins.

How many ATP molecules can be produced from one glucose molecule during cellular respiration?

• 24-26 ATP molecules

• 30-32 ATP molecules

• Up to 36-38 ATP molecules

• 40-42 ATP molecules

Where does the Krebs cycle occur in the cell?

• In the cytoplasm.

• In the mitochondrial matrix.

• In the endoplasmic reticulum.

• In the nucleus.

What is the NET total of ATP molecules created during glycolysis?

• 1 ATP molecule

• 2 ATP molecules

• 3 ATP molecules

• 4 ATP molecules