👉 Sarcoplasm is a type of cell membrane in animals that contains proteins called sarcosaminoglycans (sarcoglycan). These are responsible for the conformational changes that allow cells to move between their resting and active states. In this context, "sarcolemmas" refers to the sarcomeres within the cytoplasm of a cell, which are the primary components of muscle cells, where they carry out the contractile activity required for muscle contraction. S
