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Who do active cells have large numbers of mitochondria?
Skeletal muscle cells,cardiac muscle cells,sperm cells
Where are the myosin filaments found?
Myosin filaments are found in muscle cells, specifically in the thick filaments that make up the myofibrils within the muscle fibers. They are a key component of the sarcomeres, the functional unit of the muscle that is responsible for muscle contraction.
Cardiac muscle cells are like skeletal muscle cells in that?
Cardiac muscle cells are similar because they have striations which are strands of actin and myosin filaments. They also have mitochondria, transverse tubules, and sarcoplasmic reticulum.Cardiac muscle is different from skeletal muscle in that the muscle is branching, with intercalated dicks at the ends of them, store less calcium, the transverse tubules are larger, and their twitches are longer. Also, the entire cardiac muscle contracts as a whole, regulates itself, and is rhythmic.
Muscle that appears banded?
The muscle that appears banded is skeletal muscle. Its banded appearance, known as striations, is due to the arrangement of muscle fibers and the presence of overlapping sarcomeres containing actin and myosin filaments. Skeletal muscle is responsible for voluntary movements in the body.
Is smooth muscle cells voluntary?
no, skeletal muscle cells are
Do skeletal muscle cells have one nucleus?
skeletal muscle cells have multiple nuclei in each cell.
Which type of muscle is multinucleated striated and in cylinder form?
Skeletal muscle.
How During the contraction of muscle cells which fiber is used?
During muscle contraction, the primary fibers used are myofibrils, which consist of two main types of protein filaments: actin (thin filaments) and myosin (thick filaments). When a muscle cell is stimulated, myosin heads attach to actin filaments and pull them inward, resulting in the shortening of the muscle fiber. This process is known as the sliding filament theory, and it is essential for muscle contractions in both skeletal and cardiac muscles.
How can you tell apart a muscle cell?
Muscle cells can be identified by their elongated and striated appearance, particularly in skeletal muscle, which has a banded pattern due to the arrangement of actin and myosin filaments. They are typically multinucleated, especially in skeletal muscle, whereas cardiac muscle cells have a single central nucleus. Additionally, smooth muscle cells are spindle-shaped and lack striations. The presence of specific proteins like myoglobin in cardiac muscle and smooth muscle's involuntary control further distinguishes them.
What are the muscular cells?
Smooth (organs)Cardiac (heart muscle)Skeletal (movement, support, strength)Muscle cells have a nucleus just like other cells. The basic units of a muscle cell are the actin and myosin filaments that slide past each other to allow flexion and extension of your joints.
Do skeletal muscle cells have glycosomes?
No, skeletal muscle cells do not have glycosomes. Glycosomes are specialized organelles found in certain types of cells, particularly in protists and some parasites, where they are involved in glycolysis. Skeletal muscle cells primarily rely on mitochondria for energy production.
How are smooth muscle cells similar to skeletal fibers?
Smooth muscle cells are similar to skeletal muscle cells due to the actin-tropomyosin interactions. These interactions "tell" the muscle when to contract.
