52-151

Prophase

• cell grow

• chromatin threads separate into chromatid and have sister pairs attached at centromeres

•  centrosomes start to separate

•  DNA replicates

• result is 2 daughter cells with same genetic info

   

Metaphase:

• centrosomes are at opposite poles and exert force to cause

• chromosomes to line up along equitorial area

• cell grow

• result is 2 daughter cells with same genetic info

   

• DNA replication

Anaphase

• centromeres break apart

• leaving identical sister chromatid

• cell grow

• DNA replicates

• 90% of cell cycle

Telophase

• cell pinches into 2

• result is 2 daughter cells with same genetic info

• DNA replication

• chromosomes to line up along equitorial area

   

•  90% of cell cycle

Cell theory:

• All living things are made of cells

• The cell is the smallest living thing

• All living things are not made of cells

• All living things are not made of organs

• The organ is the smallest living thing

The study of the normal structure of tissues:

• histology

• Cytology

• lab

• microbiology

• physics

This tissue is composed of sheets of cells that cover or line body surfaces and forms glands with little ECM:

• Epithelial tissue

• Connective tissue

• Muscle Tissue

• Nervous tissue

• Blood

They have ECM as their prominent feature. They bind, support, protect, and transport substances through the body:

• Connective tissue

• Epithelial tissue

• Muscle tissue

• Nervous tissue

• Blood

This tissue is composed of contractile cells with little ECM:

• Muscle Tissue

• Connective tissue

• Epithelial tissue

• Nervous tissue

• Blood

This tissue contains the cells that send and receive messages, and supporting cells and ECM:

• Nervous tissue

• Connective tissue

• Muscle Tissue

• Epithelial tissue

• Blood