What factors affect cell division?

Asked By: Muela Hite | Last Updated: 23rd May, 2020
Category: medical health cancer
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Typical external factors that influence cell division are the following:
  • Availability of raw materials can affect cell division.
  • Radiation can change DNA molecules.
  • Toxins can damage cell DNA.
  • Viruses replicate by hijacking a cell's metabolism to make copies of the virus, but viruses can also affect cell DNA.

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Also know, what factors affect mitosis?


  • Growth & Repair. After an injury many cells are replaced in order to repair the damage.
  • Nutrient availability. Nutrients are needed as a source of energy and as building blocks.
  • Cell Type & Location. Body tissues that are replaced frequently have a higher rate of mitosis.
  • Enzyme Activity.

Beside above, what factors control and regulate cell division? Positive Regulation of the Cell Cycle Two groups of proteins, called cyclins and cyclin-dependent kinases (Cdks), are responsible for the progress of the cell through the various checkpoints.

Besides, what are three factors that control cell division?

The cell cycle is controlled by many cell cycle control factors, namely cyclins, cyclin-dependent kinases (Cdks) and cyclin-dependent kinase inhibitors (CKIs). Cyclins and Cdks, which are positive regulators of the cell cycle, activate cell cycle factors that are essential for the start of the next cell cycle phase.

What are 3 main ways that cells maintain control over division?

Organ and body size are therefore determined by three fundamental processes: cell growth, cell division, and cell death. Each is independently regulated—both by intracellular programs and by extracellular signal molecules that control these programs.

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What activates the cell cycle?

Cyclins drive the events of the cell cycle by partnering with a family of enzymes called the cyclin-dependent kinases (Cdks). A lone Cdk is inactive, but the binding of a cyclin activates it, making it a functional enzyme and allowing it to modify target proteins.

What is the growth factor?

A growth factor is a naturally occurring substance capable of stimulating cellular growth, proliferation, healing, and cellular differentiation. Growth factors typically act as signaling molecules between cells. Examples are cytokines and hormones that bind to specific receptors on the surface of their target cells.

Does temperature affect mitosis?

They showed that temperature controls the rate and speed at which a cell divides. They further show that of all phases of the cell cycle, mitosis was very sensitive to temperature, and that cell cuture subjected to temperature between 24-31°C exhibited an accumulation of cells in mitosis.

Does caffeine increase mitosis?

This demonstrates that caffeine affects the rate of mitosis because if mitosis is occurring, the roots will grow longer. In the three beakers containing caffeine, there was very little root growth and therefore slowed or inactive mitosis.

What can speed up mitosis?

So ideally if you would want to speed up mitosis, you would have to increase the amount of condensin (helps in chromatin condensation), y-tubulin (helps in centrosome duplication and spindle assembly) and the rate of nuclear membrane disassembly. Prophase is the slowest stage in Mitosis.

What factors affect the rate of growth?

Factors that influence human population growth include:
  • Healthcare/access to health care/medical technology/ability to fight or prevent disease.
  • Availability of birth control/availability of family planning education/use of birth control.
  • Political and/or economic stability/government stability/war.

What is the cell cycle control system?

This management, which is a set of molecules that sets the cell cycle in motion and coordinates its steps, is called the cell cycle control system. Checkpoints throughout the cell cycle help ensure that the cell is growing, replicating, and dividing properly.

What are growth factors in the cell cycle?

Growth factors are proteins that regulate many aspects of cellular function, including survival, proliferation, migration and differentiation. In non-neuronal cells growth factors stimulate proliferation, but mature neurons are postmitotic and cannot re-enter the cell cycle.

What is the importance of DNA replication?

In DNA replication, a double-stranded DNA molecule is copied (by a suite of various proteins) to produce an identical double-stranded DNA molecule (so whereas the cell started with one copy, it ended up with two identical copies). DNA replication is important because without it, cell division could not occur.

Which is the most important factor affecting the timing of cell division?

There are two major processes in cell growth that affect the timing of cell division: replication of the chromosome and septum formation between two chromosome clusters.

What is the definition of meiosis in biology?

Meiosis. In biology, meiosis is the process by which one diploid eukaryotic cell divides to generate four haploid cells often called gametes. Meiosis is essential for sexual reproduction and therefore occurs in all eukaryotes (including single-celled organisms) that reproduce sexually.

What is the difference between internal and external regulators?

The key difference, then, between internal regulators and external regulators is that internal regulators react to stimuli from within the cell and external regulators react to stimuli from outside the cell. Cancer cells, for example, lack these inhibitions.

How do Mitogens work?

A growth factor is a protein released by certain cells that stimulates other cells to divide. and according to Wikipedia, A mitogen is a chemical substance that encourages a cell to commence cell division, triggering mitosis.

How does a cell regulate growth and division?

How do genes control the growth and division of cells? A variety of genes are involved in the control of cell growth and division. Tight regulation of this process ensures that a dividing cell's DNA is copied properly, any errors in the DNA are repaired, and each daughter cell receives a full set of chromosomes.

What are Mitogens in biology?

A mitogen is a peptide or small protein, that induces a cell to begin cell division: mitosis.

How has technology influenced our understanding of cells and cell division?

Technology such as lenses, magnifying glasses, and microscopes had an impact on the development of the cell theory. Below are some examples of how such technologies contributed to the cell theory. He used lenses to make the discovery. Robert Brown (1773-1858) used a microscope to discover the nucleus.

What is the purpose of mitosis?

Mitosis is a process where a single cell divides into two identical daughter cells (cell division). During mitosis one cell? divides once to form two identical cells. The major purpose of mitosis is for growth and to replace worn out cells.