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Learn about the cell cycle, the series of events that result in the duplication of DNA and division of cytoplasm and organelles. Find out the phases of interphase and mitosis, the difference between mitosis and meiosis, and the importance of cell division.
- 4 min
- Cell cycle refers to the series of events that results in the duplication of the cell alongwith the DNA.
- The four important stages of cell cycle include: Interphase Prophase Metaphase Anaphase Telophase Cytokinesis
- The different phases of a cell cycle include: Interphase – This phase includes the G1 phase, S phase and the G2 phase. M phase – This is the mitoti...
- Walther Flemming discovered cell cycle in the 19th century. He was a professor at the Institute of Anatomy.
- The cell division is important because of the following reasons: It helps in the survival and growth of organisms. Maintanence of chromosome number...
- Interphase is the most important stage of cell cycle. The cell stays in the interphase for maximum periods. During this phase the cell prepares its...
- During the G1 phase the cell continues to grow but does not replicate. During the S phase the DNA of the cell replicates. During the G2 phase the R...
- Cell Cycle Definition
- Function of Cell Cycle
- Phases of Cell Cycle
- Cell Cycle Regulation
- Cell Cycle Examples
- Quiz
- GeneratedCaptionsTabForHeroSec
The cell cycle is a cycle of stages that cells pass through to allow them to divide and produce new cells. It is sometimes referred to as the “cell division cycle” for that reason. New cells are born through the division of their “parent” cell, producing two “daughter” cells from one single “parent” cell. Daughter cells start life small, containing...
Because cells reproduce by dividing, new “daughter” cells are smaller than their parent cells, and may inherit the bare minimum of cellular machinery they need to survive. Before these daughter cells can divide to produce still more cells, they need to grow and reproduce their cellular machinery. The importance of the cell cycle can be understood b...
Mitosis
Let’s start this cell cycle with “birth.” During mitosis, the “parent” cell goes through a complex series of steps to ensure that each “daughter” cell will get the materials it needs to survive, including a copy of each chromosome. Once the materials are properly sorted, the “parent” cell divides down the middle, pinching its membrane in two. You can read more about the detailed steps of mitosis and how a parent cell makes sure its daughter cells will inherit what they need to survive in our...
G1 Phase
In G1phase, the newly formed daughter cell grows. The “G” is most often said to stand for “gap,” since these phases appear to an outside observer with a light microscope to be relatively inactive “gaps” in the cell’s activity. However given what we know today, it might be more accurate to say the “G” stands for “growth” – for the “G” phases are flurries of protein and organelle production as well as literal increase in the size of the cell. During the first “growth” or “gap” phase, the cell p...
S Phase
During S phase, the cell replicates its DNA. The “S” stands for “synthesis” – referring to the synthesis of new chromosomes from raw materials. This is a very energy-intensive operation, since many nucleotides need to by synthesized. Many eukaryotic cells have dozens of chromosomes – huge masses of DNA – that must be copied. Production of other substances and organelles is slowed greatly during this time as the cell focuses on replicating its entire genome. When the S phase is completed, the...
It’s very important for the survival of cells and organisms that the cell cycle be regulated. Organisms need to be able to stop cell division when the cell in question is damaged, or when there isn’t enough food to support new growth; they must also be able to start up cell division when growth or wound healing are needed. To accomplish this, cells...
Here we’ll discuss common examples of how cells regulate their cell cycles, using a complex cascade of signal molecules, protein-activating enzymes, and signal-destroying molecules.
1. Which of the following is NOT a reason why interphase is necessary? A. Daughter cells begin life with only one copy of their DNA. B. Daughter cells begin life small, without sufficient cellular machinery to pass on to daughter cells. C. If cells performed mitosis repeatedly without going through interphase, each generation of daughter cells woul...
Learn about the cell cycle, the cycle of stages that cells pass through to divide and produce new cells. Find out the functions, phases, and examples of the cell cycle, and how it is regulated in different organisms.
The cell cycle, or cell-division cycle, is the sequential series of events that take place in a cell that causes it to divide into two daughter cells.
Learn about the stages of the cell cycle, from interphase to mitosis, and how cells grow, copy their DNA, and divide. Explore examples of cell division in different organisms and situations.
- Interesting question! I'm not sure how well studied this is, but the consensus seems to be that mutations mostly happen during DNA synthesis — i.e....
- to be more specific, there are 3 main RNA types: mRNA (matrix) - is copied from DNA, to later copy proteins off it, rRNA (ribosomal) - is what ribo...
- I think they grow to accommodate for the doubling of new organelles and the split of DNA in later stages. After that, then they split. I hope it he...
- Not necessarily. You go from a cell to two cells, or even four during meiosis.
- DNA is genetic material, and the way it is physically present in our nuclei is by being condensed into chromosomes.
- It really depends from cell to cell. Division and growth of cells take 24 hours for many human cells, but liver cells take more than a year and neu...
- Right after the cell is born, the DNA is in the form of chromosomes, but in early G1 phase, the chromosomes break apart into chromatids and are onl...
- Hi Thandeka, The way a cell copies its DNA is actually a pretty complex (but very interesting!) process. There are quite a few steps to this, but t...
- Many cells have a limited life span, so mitosis needs to occur so that healthy, living cells can be maximized.
- The cell goes through 4 steps (prophase, metaphase, anaphase, and telophase.) The cells at the end of the process also have the same amount of chro...
Aug 3, 2023 · Learn about the cell cycle, the sequence of events that results in cell growth and division. Explore the phases, regulation, and checkpoints of the cell cycle with diagrams and examples.
The cell cycle is divided into two basic phases: lllInterphase. lllM Phase (Mitosis phase) The M Phase represents the phase when the actual cell division or mitosis occurs and the interphase represents the phase between two successive M phases.
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. These processes define the two major phases of the cell cycle.
