BIO SCI E109 MODULE 2 QUESTIONS
AND CORRECT ANSWERS
\.1) ATP Hydrolyzed by myosin head - ANSWERS✔-1) ATP Hydrolyzed by myosin
head
2)myosin creates a cross-bridge with a G-actin binding site.
3)myosin pulls on the thin filament.
4)ADP is released.
5) myosin binds to ATP and releases from G-actin.
\.A contraction that generates constant force and moves a load is known as
__________, whereas one
that generates force without movement is known as __________. - ANSWERS✔-
isotonic, isometric
\.If Muscle A were half the width of Muscle B, by what factor is the force
generated by A different from B, assuming a circular cross-section for the
muscles? - ANSWERS✔-1/4
\.How do cardiac muscles differ from skeletal muscles in excitation contraction
coupling?
Presence of voltage-gated Ca?+ channels in T-tubules.
AND CORRECT ANSWERS
\.1) ATP Hydrolyzed by myosin head - ANSWERS✔-1) ATP Hydrolyzed by myosin
head
2)myosin creates a cross-bridge with a G-actin binding site.
3)myosin pulls on the thin filament.
4)ADP is released.
5) myosin binds to ATP and releases from G-actin.
\.A contraction that generates constant force and moves a load is known as
__________, whereas one
that generates force without movement is known as __________. - ANSWERS✔-
isotonic, isometric
\.If Muscle A were half the width of Muscle B, by what factor is the force
generated by A different from B, assuming a circular cross-section for the
muscles? - ANSWERS✔-1/4
\.How do cardiac muscles differ from skeletal muscles in excitation contraction
coupling?
Presence of voltage-gated Ca?+ channels in T-tubules.
