Cell cycle regulations
Who is an Oncologist?
a doctor who treats cancer and provides medical care for a person diagnosed with cancer.
What gets divided of a parental cell into two
Cytokineses is the physical process of cell division, which divides the cytoplasm of a parental cell into two daughter cells.
In a short way explain the role of mitosis in our bodies.
A way of making more cells that are genetically the same as the parent cell. It plays an important part in the development of embryos, and it is important for the growth and development of our bodies as well.
What happens to the DNA when they become a chromosome?
After DNA replication, each chromosome now consists of two physically attached sister chromatids. After chromosome condensation, the chromosomes condense to form compact structures (still made up of two chromatids). As a cell prepares to divide, it must make a copy of each of its chromosomes.
What is the difference between mitosis and cytokinesis.
Since this question is difficult you get 20x points
2000 points for the ANSWER
Mitosis is the process in which the nucleus of a eukaryotic cell divides. During this process, sister chromatids separate from each other and move to opposite poles of the cell. Cytokinesis is the final stage of cell division, during which the cytoplasm splits into two and two daughter cells form.
What is a tumor?
Triple Points for the correct answer on this
A tumor is an abnormal growth of cells that serves no purpose
During telophase what begins to happen to the chromosomes
the chromosomes begin to decondense
form a protein structure that divides the genetic material in a cell. The spindle is necessary to equally divide
Does the dna copy itself in the anaphase
During anaphase, diploid sets of daughter chromosomes separate and are pushed and pulled toward opposite poles of the cell.
Why do cells need to divide for organisms to grow? Why can’t they just get bigger?
The larger a cell becomes, the. more demands the cell places on its DNA. If the cell grows too large, it will have trouble moving enough nutrients and wastes across the cell membrane.
What do proto-oncogenes encourage and accelerate?
Proto-oncogenes are genes that normally help cells grow.
Briefly explain the process of metaphase.
A stage in the cell cycle where all the genetic material is condensing into chromosomes. During this stage, the nucleus disappears and the chromosomes appear in the cytoplasm of the cell.
State the function of mitosis.
The function of mitosis is to create two daughter cells with genetically identical nuclei as the parent cell.
Does the DNA copy itself in interphase ?
During interphase, the cell copies its DNA in preparation for mitosis
Give one Example of why cells divide
Cells divide for many reasons. For example, when you skin your knee, cells divide to replace old, dead, or damaged cells. Cells also divide so living things can grow. Organisms grow because cells are dividing to produce more and more cells.
What will happen if the cell cycle goes wrong?
Cell Division and Cancer. Cancer cells are cells gone wrong in other words, they no longer respond to many of the signals that control cellular growth and death. Cancer cells originate within tissues and, as they grow and divide, they diverge ever further from normalcy.
Briefly explain the process of pro-phase
the cell starts to break down some structures and build others up, setting the stage for division of the chromosomes. The chromosomes start to condense (making them easier to pull apart later on).
What are the names of the 6 phases of mitosis.
1. prophase
2. metaphase
3. anaphase
4. telophase
5.) Cytokinesis 6.) prometaphase
In mitosis the part of the division process in which the cell's nucleus is split how many choromosomes were in a set
3x points
mitosis is the part of the division process in which the DNA of the cell's nucleus is split into two equal sets of chromosomes.
If you have a cut on yout body how does your body repair it ?
Red blood cells help create collagen, which are tough, white fibers that form the foundation for new tissue. As the wound heals, the edges pull inward and the wound gets smaller.
What is one way the cell cycle regulator proteins control the progression of a cell through the cell cycle?
Positive regulator molecules allow the cell cycle to advance to the next stage.
In anaphase What phase is being separated from each other and pulled toward opposite ends of the cell.
the sister chromatids separate from each other and are pulled towards opposite ends of the cell. The protein “glue” that holds the sister chromatids together is broken down, allowing them to separate.
List 2 processes which involve mitosis.
Double Points : For double points name the other two
Draw what does the DNA look like during inter phase division
Mrs.Conrad will determine if the drawing is acceptable
All the phases of mitosis in order
prophase, prometaphase, metaphase, anaphase, and telophase. Cytokinesis