PQ 7.2 ATP—THE COMMON ENERGY MOLECULE

What is the final form of energy that can be used for muscle contraction and other physiological processes?

• Adenosine
• Ribose
• ATP
• Glucose

What is the name of the molecule that acts as a building block for attaching phosphates and adenosine to form ATP?

• Adenosine
• Ribose
• Glucose
• Lactic acid

What happens to ATP when a trailing phosphate (Pi) is broken from the molecule?

• It becomes ADP plus energy
• It becomes ribose plus energy
• It becomes glucose plus energy
• It becomes lactic acid plus energy

What are the two methods for resynthesizing ATP?

• Alkaline and acidic
• Anaerobic and aerobic
• Fast and slow
• High and low

Which energy system occurs relatively quickly in the muscle fiber?

• Anaerobic system
• Aerobic system
• ATP-PC system
• Cellular respiration system

Which energy system is a much more complicated process that takes place in the mitochondria?

• Anaerobic system
• Aerobic system
• ATP-PC system
• Glycolysis system

Which pathway involves the complete breakdown of glucose and is the main source of ATP during endurance events?

• ATP-PC (anaerobic alactic)
• Glycolysis (anaerobic lactic)
• Cellular respiration (aerobic)
• None of the listed

What is the byproduct of the ATP-PC pathway?

• Lactic acid
• Adenosine
• Ribose
• None of the listed

Which pathway involves the partial breakdown of glucose and does not involve oxygen?

• ATP-PC (anaerobic alactic)
• Glycolysis (anaerobic lactic)
• Cellular respiration (aerobic)
• None of the listed

Under what conditions does glycolysis become the first stage of the aerobic process?

• When there is low oxygen availability
• When there is high oxygen availability
• When there is low glucose availability
• When there is high glucose availability