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Surrounding the actin myofilaments are two inhibitor substances troponin and what?
Tropomyosin
Bundles of myofilaments make up?
Bundles of myofilaments make up
What are the myofilaments called in a muscle cell?
The myofilaments in a muscle cell are called actin and myosin. Actin and myosin are protein filaments that work together during muscle contraction to generate force and movement.
What are Thick myofilaments are made of?
Myosin
What happens to substances that are less dense than the surrounding material?
There are a number of things that may happen to substances that are less dense than the surrounding material. In most cases, this is what will cause them to float on the surrounding material.
What do thick myofilaments extend the length of?
The A band
What is process of taking substances into a cell by surrounding it with a cell membrane?
endocytosis
What band is composed only of thin myofilaments?
I-Band
What is the process of taking substances into a cell by surrounding it with the cell membrane called?
The process of taking in substances into a cell by surrounding them with the cell membrane is called endocytosis. It involves the formation of vesicles that engulf and transport the substances into the cell. Endocytosis is essential for nutrient uptake and cellular communication.
What are the small vessels called where substances such as nutrientoxygen and carbon dioxide are exchanged for substances in the tissue fluid surrounding body cells?
Capillaries
What is the ideal length?
minimal overlap of thin and thick myofilaments.
When muscles contract do the myofilaments themselves actually shrink?
the myofilaments themselves do not contract, they slide, this is called the Sliding Filament theory, in which the thick filament (Myosin) slides over the thin filament (Actin).
