B.10.3&4 Regulating the Cell Cycle and Differentiation

Bacteria are single-celled organisms that perform all life functions within one cell. Therefore, bacteria are:

• multicellular

• unicellular

• polycellular

• tricellular

Animals need many different types of cells to carry out our life processes. Therefore, we are _______________ organisms.

• unicellular

• multicellular

• singe-celled

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The process by which cells become specialized in order to perform different functions is called:

• cell differentiation

• gene expression

• cellular reproduction

• attachment

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Cells that have the ability to become any type of specialized cell in the body are called:

• cell membranes

• stem cells

• nerve cells

• cardiac cells

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Which is true about Embryonic Stem Cells.

• They no longer do mitosis, their cell type is set and can not change
• They are limited to the type of cell they can become
• They can become any cell type in the body
• They are found in adults

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Which is true about Adult Stem Cells.

• They no longer do mitosis, their cell type is set and can not change
• They are limited to the type of  cell they can become.
• They can become any cell type in the body
• They are found in embryos

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What does "pluripotent" mean?

• able to divide and make many different types of cells
• not able to divide
• can only divide and make one cell type 
• if it divides, it will make a cancerous tumor

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structure A is?

• inner cell mass
• totipotent cell
•  white blood cell
• a blastocyst

structure B is?

• inner cell mass
• totipotent cell
•  white blood cell
• a blastocyst

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Adult stem cells are?

• mutlipotent
• pluripotent
• totipotent
• isopotent 

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