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Which kind of cell in the human body would have more mitochondria- a muscle cell or a skin cell?
Muscle cells have more mitochondria because they require more energy to contract than skin cells.
What is the function of striated muscle cell?
To contract and shorten.
What is the part of the muscle fiber that allows the fiber to contract?
The sacromere with the proteins actin and myosin allow the muscle cell (fiber) to contract.
Which cell in human body contract and relax?
Muscle cells
Why does the muscle cell have a long shape?
The cell is long because the , muscle needs to stretch and contract when you use that muscle. Therefore it needs to be long in order to stretch.
What kind of cells in your body can contract?
Muscle cells contract, causing movement and our heartbeat.
The ability of a muscle to contract and relax is dependent on the flow of what?
The ability of a muscle to contract and relax is dependent on the flow of calcium ions. When a muscle is stimulated, calcium is released from storage sites within the muscle cell, allowing the muscle fibers to slide past each other and generate force. Removal of calcium from the muscle cell leads to relaxation of the muscle.
When the nervous system signals a muscle to contract what ion channels open?
When the nervous system signals a muscle to contract, calcium channels open in the muscle cell membrane. Calcium ions then flow into the muscle cell, triggering a series of biochemical events that eventually lead to muscle contraction.
When a muscle contracts it does what?
In order for a muscle to contract, the brain sends a nerve impulse to the muscle it wants to contract. The nerve impulse triggers the potassium inside the muscle fiber cell to switch places with the calcium outside the cell wall, thereby feeding the cell and contracting the muscle. A second nerve impulse from the brain triggers the calcium to switch places with the potassium, releasing the contracted muscle.
Which kind of cell in the human body do you think would have more mitochondria- a muscle or a skin cell?
"muscle"
Before a muscle cell can be stimulated to contract again what must occur?
Repolarization
The shape and size of cell vary according to the function it has to perform justify the statement taking muscle cell as example?
Muscle cells are elongated in shape to allow for efficient contraction and force generation. Additionally, the size of the muscle cell is large to accommodate a substantial number of muscle proteins and energy stores needed for muscle function. These adaptations in shape and size enhance the muscle cell's ability to contract rapidly and powerfully.
