ATP Production in Muscles and Muscle Fiber Types

Front

Where in the cell does aerobic respiration occur?

Back

Mitochondria

Front

What are fast glycolytic fibers also known as?

Back

Fast twitch fibers

Front

What allows fast twitch fibers to produce much greater forces than slow twitch fibers?

Back

More myofibrils

Front

What is the process that occurs without oxygen called?

Back

Anaerobic glycolysis

Front

What is a long, filamentous organelle found within muscle cells?

Back

Myofibril

Front

What type of muscle fibers are primarily used for endurance activities?

Back

Slow twitch fibers

Front

What is the primary energy source for muscle contraction during high-intensity exercise?

Back

ATP (Adenosine Triphosphate)

Front

What is the main byproduct of anaerobic glycolysis?

Back

Lactic acid

Front

Which type of muscle fiber has a higher density of mitochondria?

Back

Slow twitch fibers

Front

What is the role of creatine phosphate in muscle contraction?

Back

It helps regenerate ATP quickly during short bursts of activity.