Thin myofilaments are ..... myofilaments, and thick myofilaments are ..... myofilaments.

SKELETAL MUSCLE

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

Thin myofilaments are ____ myofilaments, and thick myofilaments are ____ myofilaments.

A	tryptin; actin
B	actin; myosin
C	myofibril; globular
D	myosin; sarcomere

Explanation:

Detailed explanation-1: -The myofibrils are made up of thick and thin myofilaments, which help give the muscle its striped appearance. The thick filaments are composed of myosin, and the thin filaments are predominantly actin, along with two other muscle proteins, tropomyosin and troponin.

Detailed explanation-2: -The myofilament contractile proteins consist of thick filament myosin and thin filament actin proteins.

Detailed explanation-3: -Most of the cytoplasm consists of myofibrils, which are cylindrical bundles of two types of filaments: thick filaments of myosin (about 15 nm in diameter) and thin filaments of actin (about 7 nm in diameter).

Detailed explanation-4: -Each sarcomere is composed of protein filaments (myofilaments) that include mainly the thick filaments called myosin, and thin filaments called actin. The bundles of myofilaments are called myofibrils.

There is 1 question to complete.