After a period of growth, the surface area to volume ratio is unsustainable. The cell would physically be unable to survive as a consequence (eg. it is unable to remove wastes or transport nutrients, etc.) so it divides to reach a more sustainable surface area to volume ratio.
This is beneficial for the organism because cells do die and need to be replaced.
Human cells generally only live for 15 years and then a copy is produced to replace the original cell. Brain cells are the exception. Additionally, injuries may kill cells and require replacements. Clap your hands together and you'll kill a few thousand hand cells, all of which have to be replicated.
AND CELL WILL ONLY LIVE FOR 8-14 HOURS AFTER LEAVING THE BODY ESPECIALLY FOR VIRUS CELLS
t is important because you are loosing nearly as many cells as what's growing back. Old cells are constantly dying and new cells are required to replace them
old ones die and as you grow you need more cells
To grow and repair itself.
in order to continue the life cycle of a human
Yes. But protein and water is more necessary.
Needed substances are carried to the body's cells by RBC's, or red blood cells. Red blood cells contain hemoglobin, a substance that allows proteins to bond to them. However WBC's(white blood cells) provide the body's cells with much needed protection.
Since cells die, new cells must be created. Mitosis is used to create new body cells (somatic).
When the body needs a specific type of blood cell, the bone marrow uses its stockpile of stem cells to produce the kind of mature cells needed
New cells are created by cell division.
300 trillion
Nutrients are needed by body cells.
Nutrients are needed by body cells.
Yes. But protein and water is more necessary.
The replication of DNA forms new DNA which form new cells when put in the cells of new nucleus's. The body continuously needs to produce new cells through mitosis for growth and repair and therefore without DNA replication these new cells would not be able to be made, which are needed in the human body.
The replication of DNA forms new DNA which form new cells when put in the cells of new nucleus's. The body continuously needs to produce new cells through mitosis for growth and repair and therefore without DNA replication these new cells would not be able to be made, which are needed in the human body.
Needed substances are carried to the body's cells by RBC's, or red blood cells. Red blood cells contain hemoglobin, a substance that allows proteins to bond to them. However WBC's(white blood cells) provide the body's cells with much needed protection.
It is energy for our body's cells, that is broken down by the cells when energy is needed.
Protein helps to repair damaged cells and build new cells in place of the dead ones. Body builders use proteins to build up extra cells than actually needed.
FOOD
oxygen is needed
Blood