BIOL 211 - CELLULAR AND ORGANISMAL BIOLOGY
Lecture Outline for
Topics: binary fission, cell cycle, mitosis
Chapter 8 sections 8.1, 8.2
Figures used in lecture: 8.2, 8.4, 8.5, 8.6, 8,7, 8.8, 8.9
Animation shown in class on Friday Feb 25
Mitosis Animation shown in class on Friday Feb 25
Cell Division Binary Fission and Mitosis
Mitosis animation A very good tutorial. Requires Shockwave.
Stages of mitosis diagrams
Stages of mitosis photographs
Mitosis vs meiosis - animated
Define/explain: chromosome, binary fission
What is the structure of the chromosome in a prokaryotic cell?
What are the steps of binary fission?
Define/explain: chromatin, centromere, telomere
What is the structure of chromosomes in a eukaryotic cell?
Explain the difference between chromatin and chromosome.
Define/explain: mitosis, interphase, G1, S, G2, DNA replication, sister chromatid
Explain each step of the cell cycle and know what happens in each stage.
Understand the difference between a chromosome and sister chromatids.
Define: mitosis, parent nucleus, daughter nuclei, parent cell, daughter cells, asexual reproduction, centrosomes, prophase, metaphase, anaphase, telophase, spindle, microtubules, kinetochore, equatorial plate (metaphase plate)
Mitosis ensures the accurate distribution of the multiple eukaryotic chromosomes to the daughter nuclei. A single parent nucleus gives rise to two daughter nuclei that are genetically identical to each other and to the parent nucleus. This is asexual reproduction.
Be able to place the steps of mitosis in the proper sequence. Be able to describe with words or diagrams all events that occur in each step of mitosis. If you are given a figure or a diagram, be able to identify the mitotic stage the cell is in. You should have a clear understanding of the purpose of mitosis and how the process accomplishes this purpose.
Define/explain: cytokinesis, cleavage furrow, cell plate
Be able to describe the process of cytokinesis in both plant and animal cells.
Todays Lecture (
Prokaryotic Cell Division
no nucleus; single, circular chromosome of DNA
Bacterial cell division is asexual
binary fission - cell division process seen in prokaryotes
1. Chromosome replicates.
2. Chromosomes become attached to cell membrane.
3. As the cell grows, 2 copies of the chromosome separate from each other.
4. The center of the cell pinches in to separate 2 new cells.
Eukaryotic Cell Division
Multiple, linear chromosomes; composed of chromatin
Cell cycle = life cycle of a cell
Mitosis is division of the
nucleus. It is the process by which new
cells are generated.
Function: to create daughter cells identical to the parent cell
- for growth, development, repair of tissue,
- for production of new individuals in asexually reproducing organisms