CELL STRUCTURES AND FUNCTION
CELL DIVISION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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During a cell’s lifetime, it spends most of the time growing and copying DNA and organelles. When it is time, the cell divides its DNA and organelles to create two new cells with identical DNA, helping an organism grow and to make repairs.
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The cell cycle is a process by which cells grow and replicate organelles and DNA in order to stay alive and maintain homeostasis. The process ensures that organisms have appropriate temperature and water level regulation.
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The process of the cell cycle is essential to keep a multicellular organism alive. It allows organisms to multiply their cells in a manner that different DNA is added to the differentiated cells like blood cells and bone cells. Then, all cells can carry out their function appropriately.
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The process of the cell cycle ensures that all cells in the body have an identical number of organelles and are able to divide rapidly to keep the organism functioning. It leads to differentiated cells like nerve cells and bone cells that work together to keep a multicellular organism functioning.
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Detailed explanation-1: -A cell cycle is a series of events that takes place in a cell as it grows and divides. A cell spends most of its time in what is called interphase, and during this time it grows, replicates its chromosomes, and prepares for cell division. The cell then leaves interphase, undergoes mitosis, and completes its division.
Detailed explanation-2: -The most basic function of the cell cycle is to duplicate accurately the vast amount of DNA in the chromosomes and then segregate the copies precisely into two genetically identical daughter cells.
Detailed explanation-3: -It helps in reproduction, and gamete formation. It helps in repairing and regeneration of damaged cells.
Detailed explanation-4: -A cell spends the longest in Interphase due to the following reasons: Cell growth takes place during this period. DNA synthesis takes place which is in preparation for pre-mitotic division. Replication of chromosomes takes place.
Detailed explanation-5: -The eukaryotic cell spends most of its “life “ in inter phase of the cell cycle, which can be subdivided into the three phases, G1, S and G2. During interphase, the cell does what it is supposed to do.