In which of the following is glycogen stored?

A. Connective: Connective tissue provides support and structure (e.g., tendons, cartilage) but is not muscle tissue.

B. Cardiac: Cardiac muscle, found in the heart, is involuntary and contracts rhythmically without conscious control.

C. Skeletal: Skeletal muscle is the only voluntary muscle tissue, meaning it is consciously controlled. It allows movement of the body by attaching to bones via tendons.

D. Smooth: Smooth muscle, found in internal organs (e.g., intestines, blood vessels), is involuntary and controlled by the autonomic nervous system.

A. They give the body essential amino acids: Carbohydrates do not provide amino acids; proteins are the primary source of amino acids.

B. They give the body quick energy: Simple carbohydrates (monosaccharides) provide quick energy as they are rapidly absorbed and metabolized.

C. They give the body nonessential amino acids: Carbohydrates do not contribute to amino acid supply; nonessential amino acids can be synthesized by the body.

D. They give the body sustainable energy: Complex carbohydrates, such as whole grains and fiber, provide long-lasting energy as they take longer to break down into glucose.