CHAPTER 5: CELL AND NUCLEAR DIVISION
The quiz served to make sure I understood the vocabulary for the chapter. Without this knowledge, I most likely would not have received as good a score on my test. On the quiz I received a 90% because I confused metaphase for anaphase, but I did not make the same mistake on the test. I studied and memorized the correct order of the stages of mitosis. The definition of mitosis (as seen in the quiz) is the division of cells that are not sex cells. The stages of mitosis in an animal cell are as follows:
Interphase- the period between nuclear division in which each DNA molecule in a nucleus makes an identical copy of itself. It consists of G1, G2, and S phases.
Prophase- the first stage of mitosis in which the chromosomes become visible and the nuclear envelope begins to disappear
Metaphase- the chromosomes line up along the equator on the spindle fibres
Anaphase- the chromosomes are pulled a part by the centromere to the poles of the cell
Telophase- the nuclear envelope reappears around the chromatids and the spindles start to disappear
By understanding how the cells in our cells separate and reproduce themselves it shows that cell division is important to the survival of living things. If plant and animal cells did not go through mitosis then the bodies of organisms would die and not be able to carry out the vital functions of life, and living things would be no more.