1. Fast glycolytic fibers (a) use aerobic pathways to produce ATP, (b) do not generate much power, (c) contain little myoglobin, (d) do not tire quickly. 2. Which fiber type would be the most useful...

1. Fast glycolytic fibers (a) use aerobic pathways to produce ATP, (b) do not generate much power, (c) contain little myoglobin, (d) do not tire quickly.

2. Which fiber type would be the most useful in the leg muscles of a long-distance runner? (a) fast glycolytic, (b) slow glycolytic, (c) fast oxidative.

3. Titin, a myofibril protein, (a) can unfold and refold, (b) is a very small molecule, (c) is responsible for the M line, (d) is found in the H zone.