10-2 Assessment (pg 249 1-6)

1. Name the main events if the cell cycle.
The main event is that a cell grows, prepares for division, and divides to form two new daughter cells.




2. Describe what happens during each of the four phases of mitosis.

Prophase: chromatin condence into chromosomes. The centrioles serperate, and a spindle begins to form. The nuclear membrane breaks down.

Metaphase: chromosomes line up across the center of the cell. Microtubules connect the centermere of each chromosome to poles of a spindle.

Anaphase: The sister chromatids serperate into individual chromosomes and are moved apart.

Telophase: The chromosomes gather at opposite ends of the cell and lose their distinct shapes. Two nuclear membranes form.




3. Describe what happens during interphase.
Interphase: The cell grows and replicates its DNA and centrioles.




4. What are chromosomes made of?
DNA




5. How do prokaryotic cells divide?





6. How is the cytokinesis in plant cells similiar to cytokinesis in animal cells? How is it different?
In animal cells the cell membraneos drawn inward until the cytoplasm is pinched into nearly two equal parts.
In a plant cell a structure known as the cell plate forms midway between the divided nuclei.