Cell Division

The two main stages of cell division (M Phase) are called...

• mitosis and interphase

• synthesis and cytokinesis

• the M phase and the S phase

• mitosis and cytokinesis

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NGSS.HS-LS1-4

Cells grown in a petri dish tend to divide until they form a thin layer covering the bottom of the dish. If cells are removed from the middle of the dish, the cells bordering the open space will begin dividing until they have filled the empty space. What does this experiment show?

• Cell division is a completely random process

• Once cells divide, they can never divide again

• The controls on cell growth and division can be turned on and off

• There is only a limited amount of DNA available to a given group of cells

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NGSS.HS-LS1-4

Cyclins are a family of closely related proteins that

• regulate the cell cycle

• produce p53

• cause cancer

• work to heal wounds

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NGSS.HS-LS1-4

Which events occur during interphase?

• The cytoplasm divides

• The cell grows and prepares for mitosis

• The nucleus divides

• The cell grows and divides

Cancer is a disorder in which some cells have lost the ability to control their

• size

• spindle fibers

• growth rate

• surface area

Tags

NGSS.HS-LS1-4

NGSS.HS-LS3-2

Cancer cells form masses of cells called

• tumors

• cyclins

• growth factors

• p53

Tags

NGSS.HS-LS1-4

Which diagram shows cancer cells?

• A

• B

Cell division is...

• the process in which a daughter cell copies itself to generate two identical parent cells.

• the process in which a parent cell copies itself to generate multiple identical daughter cells.

• the process in which a parent cell copies itself to generate two identical daughter cells.

Tags

NGSS.HS-LS1-4

Why do cells divide?

• All of the above

• To repair

• To replace

• To copy and divide

Tags

NGSS.HS-LS1-4

The period of time from one cell division to the next is known as the cell cycle.

• True

• False