Muscle structure

Marbling fat refers to

• subcutaneous fat

• intermuscular fat

• intramuscular fat

• lean fat

Each fibril is made up to think filament (.........), thin filament (........), and combined

• actin, myosin

• myosin, actin

• myosin, actomyosin

• actomyosin, myosin

Muscle proteins have wide range of function. One of the function is structural such as

• collagen of connective tissues

• actin

• myosin

• creatine kinase

Below is the characteristics of elastin

• triple helix

• presence of carbohydrate

• no triple helix

• presence of hydoxylysine

The general mechanism of muscle contraction

• regeneration of ATP to ADP

• polymerization of actin into chain

• interdigitating thick and thin filaments of the myofibrils slide over one another

• reduction of thick filament