Sarcomere Practice

What is the area labeled 8

• M line

• Z line

• H zone

• A band

What is the area labeled 1

• A band

• Myofibril

• Sarcomere

• H zone

What is the labeled 5

• Thin filament

• Myosin

• Titin

• Actin

Actin is a

• Protein

• Carbohydrate

• Lipid

• None of these answers

Item 3 is

• Troponin

• Myosin

• Actin

• Titin

What molecule prevents actin-myosin interaction?

• Troponin

• Nebulin

• Titin

• Tropomyosin

What does Ca⁺⁺ bind with to move tropomyosin out of the way to start the contracting process?

• Nebulin

• Troponin

• Titin

• Actin

What is the area labeled 8

• Zone of overlap

• A band

• H zone

• I band

What is the area labeled E?

• M line

• A band

• I band

• Z line

What is the area labeled D?

• Z line

• H zone

• I band

• A band