skeletal muscle, glycogen synthesis occursduring:a. Contractionb. Relaxationc. Well-fed stated. Increased level of insulin

Sure, let's analyze each option step by step to determine when glycogen synthesis occurs in skeletal muscle:

a. Contraction: During muscle contraction, the primary focus is on breaking down glycogen to provide energy in the form of glucose. Glycogen synthesis is not a priority during this time.

b. Relaxation: While muscle relaxation is a period when the muscle is not actively contracting, it does not specifically trigger glycogen synthesis. Other factors are more directly involved in promoting glycogen synthesis.

c. Well-fed state: In a well-fed state, the body has an abundance of nutrients, including glucose. This is a favorable condition for glycogen synthesis as the body stores excess glucose as glycogen in both the liver and skeletal muscles.

d. Increased level of insulin: Insulin is a hormone that promotes the uptake of glucose into cells and stimulates glycogen synthesis. When insulin levels are high, such as after eating, glycogen synthesis in skeletal muscle is promoted.

Given these explanations, the correct answers are:

c. Well-fed state d. Increased level of insulin

Both conditions promote glycogen synthesis in skeletal muscle.