Which Statement About the Structure of Skeletal Muscle Is True

question 20

Multiple Choice

Which statement about the structure of skeletal muscle is true?

• A) The light bands of the sarcomere are the regions where actin and myosin filaments overlap.
• B) When a muscle contracts,the A bands of the sarcomere lengthen.
• C) The actin filaments are anchored by titin molecules to the Z lines.
• D) When a muscle contracts,the H zone of the sarcomere shortens.
• E) The sarcoplasm of the muscle cell is contained within the sarcoplasmic reticulum.

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Definitions:

Male Structure

Anatomical parts specific to the male of a species, often involved in reproductive processes.

Flower

A flower is the reproductive structure found in flowering plants, responsible for the production of seeds and fruit.

Fertilization

Fertilization is the process by which male and female reproductive cells (gametes) unite to form a new cell that will develop into a new organism.

Flowering Plants

Plants belonging to the group Angiosperms, characterized by bearing flowers and producing seeds enclosed within a carpel.