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Mitosis Quiz 1
Question | Answer |
---|---|
Cell division occurs in... | Prokaryotes and Eukaryotes |
Division of the cytoplasm | cytokinesis |
Structure made of fibers that help to move chromosomes during mitosis | spindle |
A chromosome consists of two identical | chromatids |
Disease caused by uncontrolled cell growth | cancer |
Cells are limited in size by their surface areas and | volume |
Paired structure that helps organize the spindle | Centrioles |
Cells exchange materials across the cell | membrane |
The phase where chromatids separate | Anaphase |
The phase where chromosomes first become visible | Prophase |
Series of events a cell goes through as it grows and divides; the cell | cycle |
The phase in which DNA copies itself | interphase |
Holds sister chromatids together | Centromere |
When a cell divides, it forms two ________ cells. | Daughter |
Cells that can become any other type; _______ cells | Stem |
Division of the cell nucleus | mitosis |
The phase where cytokinesis begins | Telophase |
The phase where chromosomes line up along the equator | Metaphase |
What is the longest phase? | Prophase |
What are centrioles? | 1 of 2 tiny structures located in the cytoplasm of animal cells near the nucleur envelope. |
What is organized in the centrosome area? | mitotic spindles |
Do plant cells have centrioles? | no |
What are spindles made of? | protein fibers |
METAPHASE: Where do chromosomes line up? | across the center of the cell |
ANAPHASE: What splits apart during this phase? | centromeres (sister chromatids) |
ANAPHASE: What are they called when they split apart? | Chromosomes |
TELOPHASE: What becomes visible again during this phase? | a nucleolus |
During this stage of Interphase cells increase in their size and synthesize new proteins and organelles. | G1 |
What stage of Interphase does the chromosomes are replicated and the synthesis of DNA molecules take place? | S |
What stage of Interphase do many of the molecules and organelles required for cell division are produced? | G2 |
During this phase the cell grows and replicates its DNA and centrioles? | Interphase |
During this phase the chromatin condenses into chromosomes. The centrioles seperate, and a spindle begins to form. The nuclear envelope break down. | Prophase |
During this phase the chromosomes line up across the center of the cell. Each chromosome is connected to a spindle fiber at its centromere. | Metaphase |
During this phase the sister chromatids separate into individual chromosomes and are moved apart. | Anaphase |
During this phase the chromosomes gather at opposite ends of the cell and lose their distinct shapes. Two new nuclear envelopes will form. | Telophase |
During this phase the cytoplasm pinches in hald. Each daughter cell has an identical set of duplicate chromosomes. (last phase) | Cytokinesis |
What are chromatids? | one of two identical "sister" parts of a duplicated chromosome |
What are the four phases of Mitosis? | Metaphase, Anaphase, Telophase, and Prophase. |