6-2

prophase

..., the first stage of mitosis

centrioles

Cell division

telephase

4th phase of cell division. the chromosomes become longer, thinner, and less distinct. the nucleur membrane forms. the neocleolus reappears and cell division is nearly complete

interphase

A period between two mitotic or meiotic divisions during which the cell grows, copies its DNA, and synthesizes proteins.

mitosis

A process of nuclear division in eukaryotic cells conventionally divided into five stages: prophase, prometaphase, metaphase, anaphase, and telophase. Mitosis conserves chromosome number by equally allocating replicated chromosomes to each of the daughter nuclei.

interphase

Cell grows, performs its normal functions, and prepares for division; consists of G1, S, and G2 phases

anaphase

Centromeres divide

metaphase

Centromeres of duplicated chromosomes are aligned at plate. Fully formed spindle attach to the sister chromatids from opposite poles

cytokinesis

Division of the cytoplasm during cell division

list 3 parts of intersphase and briefly what happens in each

Interphase is the phase of the cell cycle in which the cell spends the majority of its time and performs the majority of its purposes including preparation for cell division. Interphase is considered to be the 'living' phase of the cell, in which the cell obtains nutrients, grows, reads its DNA, and conducts other "normal" cell functions. The majority of eukaryotic cells spend most of their time in interphase. Interphase does not describe a cell that is merely resting but is rather an active preparation for cell division. A common misconception is that interphase is the first stage of mitosis, however, prophase is actually the first stage. In interphase, the cell gets itself ready for Mitosis or Meiosis. Somatic cells, or normal diploid cells of the body, go through mitosis in order to reproduce themselves through cell division. Whereas diploid germ cells (i.e. primary spermatocytes and primary oocytes) go through meiosis in order to create haploid gametes (i.e. sperm and ova) for the purpose of sexual reproduction. Under a microscope interphase can be visually recognized because the nuclear membrane is still intact, the chromatin has not yet condensed and chromosomes are not visible, though the nucleolus may be visible as an enlarged dark spot. The centrioles and spindle fibers are also not yet visible, though the centrosome which contains and organizes them may be visible near the nucleus. Stages of Interphase There are three stages of interphase, each phase ends when a cellular checkpoint checks the accuracy of the stage's completion before proceeding to the next. The stages of interphase are: * G1 (Gap 1), in which the cell grows and functions normally. During this time, a lot of protein synthesis occurs and the cell grows (to about double its original size) - more organelles are produced and increasing the volume of the cytoplasm. If the cell is not to divide again, it will remain in this phase. * Synthesis (S), in which the cell duplicates its DNA (via semi-conservative replication). * G2 (Gap 2), in which the cell resumes its growth in preparation for mitosis. The duration of time spent in interphase and in each stage of interphase is variable and depends on both the type of cell and the species of organism it belongs to. Some human cells divide every 24 hours; in this case interphase takes about 22 hours .[citation needed] Interphase is the first part of the Cell Cycle. The Cell Cycle is G1, S, G2, M (mitosis).

cancer

any malignant growth or tumor caused by abnormal and uncontrolled cell division

spindles

cell structures made up of both centrioles and individual microtubule fibers that are involved in moving chromosomes during cell division

the 3 parts of the cell cycle are

g1, s , g2

the 4 phases of mitosis

prophase, metaphase, anaphase, telophase