Directions: Fill in the Blanks Below with the Correct Term to Complete Each Statement

NAME:______PERIOD:____DATE:______

Mitosis

Directions: Fill in the blanks below with the correct term to complete each statement.

Mitosis is the process by which the ______of a cell is divided into 2 ______nuclei with the same number of ______. In body cells, or ______cells, mitosis is the process by which the number of cells is increased without changing the information contained in the ______.

During normal cell function, the DNA is in long strands inside the nucleus called ______. When the cell gets ready to divide the DNA coils and can be seen as a rod shaped structure called a ______. Once duplicated, each chromosome consists of two identical parts, each part is called a ______. A pair of identical chromatids is called ______. The point at which each pair of chromatids is attached is called a ______.

Interphase has three distinct phases, ______, ______, and ______. In ______the cell doubles size and makes new organelles. In the _____ phase the DNA replicates and in ______the cell makes specific proteins as it prepares for mitosis. Cells spend most of their life in ______.

After interphase the cell enters mitosis. There are 4 stages of mitosis. During prophase the ______coil up into ______. In ______the chromosomes line up in the center of the cell with the help of the ______. During anaphase the ______split and the chromatids are pulled to ______poles of the cell. In telophase, the chromosomes reach opposite ends and ______.

The cytoplasm divides in the final phase of the cell cycle called ______. The result is two ______that are ______to the original cell. Cell division is complete.

Directions: Identify, describe and draw a picture for each stage of mitosis.

1. ______

II. ______

III. ______

IV. ______

Directions: Complete the table by checking the correct column for each statement.

Statement / Interphase / Mitosis / Cytokinesis
The period of cell growth
A period of cell division
Chromosomes distributed equally to daughter cells.
DNA synthesis occurs
Cytoplasm divides
Mitochondria and other organelles are manufactured.

Directions: Answer the following questions completely.

1. What is mitosis?

2. What must a cell do before going through mitosis?

3. What is cytokinesis?

4. What part(s) of the cell cycle are considered cell division?

5. Why is it necessary for a cell's chromosomes to be distributed to its daughter cells in

such a precise manner?

6. At one time, interphase was referred to as the resting phase of the cell cycle. Why do

you think this description is no longer used?

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