Concept 3

Page 30

100

Fertilized Egg

Zygote

200

Cell Division happens through?

Mitosis

300

Differentiation

A process that creates special structures

400

Specialized cells become?

Tissues

500

Tissues go from organs to?

Organ systems

Tissues>Organs>Organ Systems

Cell Differentiation

100

Stem Cells

Undifferentiated cells that become differentiated

200

The two types of stem cells

Embryonic and Adult

300

Embryonic Stem Cells

Cells that have NEVER differentiated

400

Adult Stem Cells

Cells found in adult bone marrow and are partially differentiated

500

The most basic unit of life

CELL

Cell Cycle

100

Repeated pattern of growth, DNA duplication, and cell division

Cell Cycle

200

Purposes

Growth and Repair

300

G1 Phase

Cells grows and makes protiens

400

S Phase

DNA Replication and doubles chromosomes

500

G2 Phase

More cell growth and protein synthesis

DNA Vocab

100

Chromosome

A continuous thread of DNA that has thousands of genes and info

200

Gene

Instructions for making protein

300

Chromatid and Sister Chromatids

Half of a duplicated chromosome

Two identical chromatids

400

Centromere

The center of the condensed chromosomes that look pinched

500

Telomere

Ends of a DNA molecule

Phases

100

Prophase

-Chromosomes condense & are visible as sister chromatids                                                                -Nuclear membrane disappears                                  -spindle fibers form out of centrioles

200

Metaphase

-Spindle fibers connect to the sister chromatids         -chromosomes line up in the middle

300

Anaphase

-sister chromatids seperate                                        -chromatids move to the oppostite ends of the cell

400

Telophase

-chromatids decondense and look like chromatin

-nucleus refors

-spindle fibers break down

500

Cytokenesis

Cytoplasm divides into 2 cells