Question

match the following:

a sarcomere is the distance between two _______. choose

the _______ only contains the thin filaments. choose

both actin and myosin are found in the _______. choose

question 9
each consecutive bone lamella has collagen fibers that wrap in alternating directions.
true
false

Explanation:

Analyze the matching question on sarcomere structure

• A sarcomere is defined as the region between two successive Z discs (or Z lines).
• The I band (isotropic band) contains only thin (actin) filaments.
• Both actin (thin) and myosin (thick) filaments overlap and are found in the A band (anisotropic band).

Analyze Question 9 on bone lamellae

• In compact bone, collagen fibers in adjacent (consecutive) lamellae run in alternating directions.
• This alternating orientation helps the bone resist twisting and torsional forces.
• Therefore, the statement "Each consecutive bone lamella has collagen fibers that wrap in alternating directions" is True.

Answer:

Question 1

Match the following:

• A sarcomere is the distance between two Z discs (or Z lines).
• The I band only contains the thin filaments.
• Both actin and myosin are found in the A band.

Question 2

Each consecutive bone lamella has collagen fibers that wrap in alternating directions.

• True (Correct answer)
• False