| A | B |
|---|
| What are the four phases of the cell cycle? | G1, S, G2, and M |
| Chromosomes are only visible when ___. | the cell is dividing |
| When the cell is most actively growing, it is in the ____ phase. | G1 |
| When DNA is replicating, the cell is in the ___ phase. | S |
| When the cell is preparing for mitosis, it is in the ____ phase. | G2 |
| When the cell is undergoing cell division, it is in the ___ phase. | M |
| In order, what are the four stages of mitosis? | Prophase, metaphase, anaphase, telophase (remember PMAT) |
| G1, S, and G2 all occur during ____. | interphase |
| Which phases of the cell cycle occur during interphase? | G1, S, and G2 |
| Cell division ends during ___. | cytokinesis |
| The ____ is a series of events that cells go through as they grow and divide. | cell cycle |
| The ___ is a narrow region of the duplicated chromosome where sister chromatids are attached to each other. | centromere,  |
| The centromere region is where _____ are held together. | sister chromatids, |
| After chromosomes undergo DNA replication, they consist of two identical ____ that are attached to each other. | sister chromatids, |
| During which stages of mitosis are sister chromatids attached to each other? | prophase and metaphase |
| During which stage of mitosis do sister chromatids start to separate? | anaphase |
| During which stage of mitosis are sister chromatids lined up along the center of the cell? | metaphase (think metaphase = middle) |
| During which stage of mitosis does the nuclear envelope break down? | prophase |
| During which stage of mitosis do the chromosomes condense to become visible? | prophase |
| Centrioles help organize a fan-like group of protein fibers called the ____ that help pull the chromosomes apart. | spindle |
| In animal cells, ________ help organize a fan-like group of protein fibers called the spindle that help pull the chromosomes apart. | centrioles, 
|
| The division of the cytoplasm itself is called ___. | cytokinesis |
| In plant cells, cytokinesis is accomplished with the formation of a ___ between the two new cells. | cell plate |
| During which stage of mitosis are the chromosomes divided into the two opposite ends of the cell and the nuclear membrane reforms? | telophase |
| The two main stages of cell division are ___. | mitosis and cytokinesis,
|
| One main difference between cell division in plants versus animals is that plants have ___. | a cell plate |
| One main difference between cell division in plants versus animals is that animals have ___. | centrioles |
| During normal cell division, a human cell with 46 chromosomes would produce two daughter cells with ___ chromosomes each. | 46 |
| A cell that has 5 chromosomes in G1 would have ___ chromosomes in G2 | 10 (remember they replicate during the S phase which occurs between G1 and G2) |
Which stage of mitosis is depicted in the picture below?,  | Prophase, |
Which stage of mitosis is depicted in the picture below?,  | Metaphase, |
Which stage of mitosis is depicted in the picture below?,  | Anaphase, |
Which stage of mitosis is depicted in the picture below?,  | Telophase, |
Which stage of the cell cycle is depicted in the picture below?,  | Interphase, |
The structures labeled A are,  | sister chromatids, |
| The structures labeled B are, | spindle fibers, |
| The area labeled C is called the _____., | centromere, |
The plant cell labeled A is in ____.,  | anaphase, |
| The plant cell labeled B is in ____., | telophase, |
| The plant cell labeled C is in ____., | interphase, |
| The plant cell labeled D is in ____., | prophase, |
| The plant cell labeled E is in ____., | metaphase, |
| Uncontrolled cell division is also known as ______. | cancer |
| When cells divide over and over again because of cancer, a lump of cells called a ____ forms. | tumor |
| How is the cell cycle controlled (ie - turned on, off, slowed down, sped up)? | Special proteins inside the cell act as on switches, or off switches to speed up or slow down the cell cycle as needed. |
| A ____ can cause the proteins that control cell division to malfunction, causing the cell to divide uncontrollably. | mutation in DNA |
| ________ are a group of proteins that regulate the cell cycle by increasing or decreasing their concentration in the cell. | Cyclins |
| True or false: Interphase is a stage of mitosis. | False (Interphase happens before the stages of mitosis. The stages of mitosis are prophase, metaphase, anaphase, and telophase. Cytokinesis is not a stage of mitosis either. It is however part of the M phase (mitotic phase). |
| True or false: Cytokinesis is a stage of mitosis. | False (Cytokinesis is not a stage of mitosis either. It is however part of the M phase (mitotic phase). Cytokinesis does start during telophase, but it is not a stage of mitosis. The only stages of mitosis are prophase, metaphase, anaphase, and telophase) |
| True or false: Mitosis is asexual reproduction. | False (Mitosis is part of asexual reproduction in single-celled eukaryotic organisms that divide to form new single-celled organisms that are genetically identical to the parent cell. However, the cells that divide in multicellular organisms including the stages of mitosis are not an example of asexual reproduction because they are not creating a new organisms). |
