Muscle Contraction

Skeletal muscles always work _____.

• in groups
• in pairs
• singly
• none of the above

What is necessary for the myosin to release the actin?

• ATP

• Calcium

• ADP

• Sodium

How many ATP molecules are synthesized from 4 ADP molecules?

• 2

• 4

• 6

• 1

Which of these is broken down into pyruvic acid?

• glucose

• oxygen

• water

Glycolysis has the potential to produce lots of energy very quickly.

• True

• False

Muscle fatigue is likely due to the build up of

• acetylcholine

• cholinsterase

• lactic acid

• glucose

What does it mean for something to be anaerobic?

• It requires CO2
• It does not require CO2
• It requires oxygen
• It does not require oxygen

Where in the cell does aerobic respiration take place?

• Nucleus
• Cytoplasm
• Mitochondria
• Cell membrane

What is the function of a carbohydrate?
(Why do I need this before a workout?)

• Quick energy
• Movement
• Stores genetic information
• Speeds up reactions

Which of the following occurs during cellular respiration?

• Light energy and water are converted to ATP

• Carbon dioxide and water are converted to ATP

• Glucose and oxygen are converted to ATP

• Light energy and oxygen are converted to ATP