Jib225W4 Part 2

When striated muscle is relaxed, there is no calcium bound to troponin

• TRUE

• FALSE

Animals are capable of movement because they have a unique type of cell, the __________. 

Microtubules are organized in cells with the ends near the nucleus in a region known as the

The __________ explains how the myosin head moves down the actin polymer, generating movement

The thick filament of striated muscle is indirectly connected to the Z-disk by the compressible protein __________. 

Which of the following is processes of Sliding Filament Model

• Chemical reaction,

  myosin binds to actin (cross-bridge)

• Structural change, myosin bends (power stroke)

Which of the following is Sliding Filament Model partway?

• 1. Myosin head extend and attaches to adjacent actin

  2. ATP binds, causing myosin to detach

  3. Release of phosphate promotes power stroke

  4. ADP is released

• 1. ATP binds, causing myosin to detach

  2. Myosin head extend and attaches to adjacent actin

  3. Release of phosphate promotes power stroke

  4. ADP is released

• 1. Myosin head extend and attaches to adjacent actin

  2. Release of phosphate promotes power stroke

  3. ATP binds, causing myosin to detach

  4. ADP is released

What is W in the figure ?

What are X and Y in the Figure?

• X - I band

• Y - A band

• X - A band

• Y - I band

What are A, B and C?

• A - Titin

  B - Thick filament

  C - Thin filament

• A - Titin

  B - Thin filament

  C - Thick filament

• A - Thin filament

  B - Thick filament

  C - Titin