5 Written Questions

1. the last stage of mitosis in which a nuclear envelope forms around each set of chromosomes located at opposite sides of the cell. A nucleolus appears in each nucleus during this stage.
2. the structure that is the point of attachment for two chromatids in a double chromosome
3. the football-shaped structure formed from microtubules during prophase. This extends from opposite sides of the cell and facilitates chromosome movement in mitosis.
4. a cell that does not have a membrane-bound nucleus. For example, a bacterium.
5. cylindrical structures in animal cells from which the spindle extends from in mitosis

5 Matching Questions

1. interphase
2. prophase
3. eukaryotic cell
4. bacterium
5. cytokinesis

1. a period in the cell cycle when the cell grows, produces more cell structures, and doubles its chromosome set. This includes the G1, S, and G2 stages in the cell cycle
2. b a one-celled microorganism that contains no nucleus.
3. c the first and longest stage of mitosis. In this stage the chromosomes condense, the nucleus and nucleolus disappear, and the centrioles move to opposite sides of the cell. The spindle forms and attaches to the chromosomes during this stage
4. d stage following mitosis in which the cytoplasm of a cell divides into two equal portions, each with one nucleus
5. e a cell that has a true nucleus surrounded by a membrane (or nuclear envelope). This group includes all animal and plant cells, except blue-green algae.

5 Multiple Choice Questions

1. a dark structure seen within the nucleus
   1. nucleolus
   2. bacterium
   3. nucleus
   4. nuclei
2. the second stage of in mitosis in which the double chromosomes line up along the cells equator and are split into single chromosomes
   1. metaphase
   2. anaphase
   3. interphase
   4. telophase
3. the stage in mitosis in which individual chromosomes, after being separated into double chromosomes, move to opposite sides of the cell. Each cell receives one complete set of chromosomes.
   1. metaphase
   2. prophase
   3. anaphase
   4. interphase
4. a membrane that surrounds the nucleus in a eukaryotic cell
   1. nucleolus
   2. cell plate
   3. nuclear envelope
   4. nuclei
5. plural form of nucleus
   1. nucleus
   2. nucleolus
   3. genes
   4. nuclei

5 True/False Questions

1. cell plate → the sequence of growth and division that dividing cells go through. The cycle includes interphase, mitosis, and cytokinesis.

   True        False

2. microtubules → cylindrical structures in animal cells from which the spindle extends from in mitosis

   True        False

3. chromatid → structures composed of a very long stand of DNA that has been tightly compacted. Within this DNA lie the genes for the organism

   True        False

4. nucleus → a dark structure seen within the nucleus

   True        False

5. cytoplasm → area within a cell between the nucleus and the outer cell membrane

   True        False