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Mitosis
The phases of mitosis and cytokinesis
22
Biology
9th Grade
03/16/2012

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Term
Mitosis
Definition
Division of the nucleus
Term
Mnemonic device or saying to help you remember the phases of mitosis
Definition
Please make another taco - phophase, metaphse, anaphase, telophase
Term
Prophase
Definition
The first stage of mitosis
Term
Centrioles
Definition
Structures found in animal cells that help form the spindle apparatus or spindle fibers
Term
Spindle apparatus
Definition
Network of protein cables that attach to the chromosomes and pull them to the correct location
Term
What happens during Prophase?
Definition
The nucleolus disappears, the nuclear membrane breaks down, the centrioles move to opposite ends of the cell, the chromosomes condense and become visible, the spindle apparatus forms
Term
Metaphas
Definition
The second phase of mitosis
Term
What happens during metaphase?
Definition
The spindle fibers attach to each sister chromatid and pulls the chromosomes so that they line up single file in the middle of the cell
Term
Anaphase
Definition
The third stage of mitosis
Term
What happens during anaphase?
Definition
The centromeres split and the sister chromatids are pulled to opposite ends of the cell. The chromatids are now called chromosomes.
Term
Telophase
Definition
The fourth and last phase of mitosis
Term
What happens during telophase?
Definition
The chromosomes begin to unwind and disappear, the spindle apparatus breaks down, the nuclear membrane reforms, the nucleolus reappears
Term
Cytokinesis
Definition
The division of the cytoplasm
Term
Cleavage furrow
Definition
The beginning of the pinching in half of the cytoplasm during cytokinesis in animal cells
Term
How does cytokinesis occur in animal cells?
Definition
A ring of protein cables called microfilaments slide pass each other like a drawstring bag and pinch the cytoplasm in half
Term
How does cytokinesis occur in plant cells?
Definition
A cell plate forms between the two new nuclei.
Term
Cell plate
Definition
The beginning of a new cell wall. It forms from many vesicles from the Gogli that fuse together. It grows until it reaches from one side of the cell to the other, making the new cell wall
Term
[image]
Definition
Prophase
Term

Identify the phase of mitosis

 [image]

Definition
Metaphase
Term

Identify the phase of mitosis

[image]

Definition
Anaphase
Term

Identify the phase of mitosis

[image]

Definition
Telophase
Term

Identify the phase

[image] 

Definition
Cytokinesis
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