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Nerve cells are in G0, which means the cells are in developmental arrest. They do not divide or grow, they stay the same and don't regenerate.
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Which cells in your body are never replaced?
Cells
How can cell division result in growth of bones and repair of muscles?
Your bones can not grow, that is why we have cell division. Cell division repairs muscles, because damaged cells are replaced with better ones.
A human red blood cell loses its nucleus at one stage of its growth A human brain cell always keeps its nucleus Which cell do you think lives longer Why?
Think about the purpose of the nucleus - to retain genetic information, which is used to produce proteins to replace worn out enzymes or similar. A red blood cell can therefore not regenerate itself when damaged, whereas a brain cell can (to an extent - too much damage and even the brain cell will be destroyed). The average lifespan of a red blood cell is 100 days. The average brain cell is with you all your life.The nucleus is the 'brain' of the cell. It tells the cell what to do.
Is it more harmful for an organism to have a damaged cell or damaged organ?
Depends on how the cell is damaged and on which organ and how it's damaged as well. Some single cells can become malignant tumores and bring about the death of the body while you might easily remove some kinds of organs without major consequence, such as one kidney, one lung, spleen etc.
Why will a cell without a nucleus die?
Plant cells die if they dont have a nucleus because the nucleus is like the brain of the cell. If it doesn't have a nucleus the cell cannot work properly. Such as producing for or releasing waste or reproducing.
What cell never gets replaced?
That would be a brain cell.
Why cant a cell in the brain be replaced?
there are some cells in the body that after the are produced once, they can no longer reproduce. These cells are known as cells in the quiescent stage. They are permanantly in G0 phase.
What will happen to the heart if some of its cell is damaged?
the heart cant pump blood so easle
Which cells in your body are never replaced?
Cells
How can cell division result in growth of bones and repair of muscles?
Your bones can not grow, that is why we have cell division. Cell division repairs muscles, because damaged cells are replaced with better ones.
Why do you need to protect your brain?
Because the brain is IMPORTANT. We do not want it to be damaged (this is why we wear helmets if we plan to do something where the head could be injured).
A human red blood cell loses its nucleus at one stage of its growth A human brain cell always keeps its nucleus Which cell do you think lives longer Why?
Think about the purpose of the nucleus - to retain genetic information, which is used to produce proteins to replace worn out enzymes or similar. A red blood cell can therefore not regenerate itself when damaged, whereas a brain cell can (to an extent - too much damage and even the brain cell will be destroyed). The average lifespan of a red blood cell is 100 days. The average brain cell is with you all your life.The nucleus is the 'brain' of the cell. It tells the cell what to do.
If the brain is damaged can a new nerve cell grow?
No-- Nerve cells are one of the few kinds of cells that never regenerate or regrow.
Where does epilepsy effect?
Epilepsy is a disease caused by trauma to a spesific part of your brain, you can however be born with it as well, but it's still the same part (cell) of the brain that's damaged/ineffective.
Why sciencist are interested in stem cells?
a stem cell is the basic undifferentiated cell, meaning that it has the capability to become any cell in the body. scientists are interested by them because they can replace damaged cells, the most interesting use is to replace damaged nerve or brain tissue since those tissues do not repair themselves on their own and nerve cells don't divide. the potential for stem cell technology includes healing paralysis and brain damage.
What does Alzheimer's do to the person?
The progressive death of nerve cells in the brain is associated with the formation of clumps (amyloid plaques) and tangles of protein (neurofibrillary tangles) in the brain.
Which cell is damaged by short circuiting?
Any cell may be damaged by short-circuiting.
