Cell Division
Regulating the Cell Cycle
Controls on Cell Division
From One Cell to Many
Cell Differentiation
100

The proteins that regulate the timing of the cell cycle in eukaryotic cells. 

What are cyclins?

100
Through __________ and __________, an organism develops from a single cell into a multicellular organism with specialized structures
What is mitosis and differentiation?
100
List three levels into which cells become organized when they differentiate.
Tissues, Organs, and Systems
100

True or false? Cells become capable of carrying out specialized functions when they differentiate in structure.

True

100

True or False? Totipotent cells can differentiate into any type of cell and tissue.

True. 

200

True or False? The plan for what a cell will become is coded in its DNA.

True

200

Abnormal cells that do not die but continue to grow and divide cause? 

What is cancer?

200

A group of internal regulatory proteins.

What are cyclins?

200

True or false? All cells differentiate completely during development.

False

200

An organism at an early stage of development is?

What is an embryo?


300

Why can some lizards grow new tails?

Cells at the point of injury differentiate and form new muscle, bone, blood or nerves. 

300
What is a stem cell?
A cell that can differentiate throughout life.
300
True or false? Once a human cells differentiate they have the ability to turn into other cells.
False
300
what type of cells do stem cells produce?
Blood cells.
300

What is cell differentiation? How is it important to an organism's development?

What is the process by which a cell becomes specialized. If cells didn't differentiate, all cells would be the same and no cell would have a specific function. 

400

What is the result of cell differentiation?

Specialized cells and differences in organ structure and function. 

400

True or false? Multicellular organisms begin their life's as two cells.

False.

400
What do white blood cells do?
Fight infection
400
Stem cells can respond to specific needs in the body by becoming _____________.
Specialized
400

Explain why careful regulation of the cell cycle is important to multicellular organisms.

Careful regulation of the cell cycle ensures that each cell in a multicellular organism grows, divides, stops dividing or dies appropriately. If this goes wrong, then diseases such as cancer can result. 

500

Once apoptosis is triggered, a cell proceeds to? 

What is self-destruct?

500

External regulatory proteins that increase the rate of cell division during an organism's development are called? 

What are Growth Factors?

500

How are cancer cells different from other cells? How are they alike? 

Cancer cells differ in that their growth is uncontrolled. But they use the same cell division process as normal cells. 

500

A cell enters anaphase before all of its chromosomes have attached to the spindle. This may indicate that the cell is not responding to?

What are internal regulators? 

500

An embryonic stage that consists of of a hollow ball of cells that are able to become any type of body cell. 

What is a blastocyst?

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