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Hawkes - Test 10/14

About Discovery of Cells, and Vocab words for Cell Cycle

Robert Hooke -Was the first person to describe cells -He looked at cork under a microscope -Hooke looked at cells in plants and fungi
Anton von Leeuwenhoek -He discovered protists in pond scum -He called the protists “animalcules” -Animalcules mean “little animals” --First to see blood cells, bacteria and yeast cells --He made his own microscope with 2 glass beads
Schleiden -He concluded that all plants are made of cells.
Schwann -He concluded that all animals were made of cells
Virchow -Stated that all cells come from other cells.
3 Parts of the Cell Theory - All organisms are made of one or more cells -The cell is the basic unit of all living things -All cells come from other cells.
Cells all have... Cell membrane DNA Cytoplasm Organelles
Prokaryote -Single celled organisms -Do NOT have a nucleus -- Do NOT have membrane bound organelles Examples: Bacteria and Archaea
Eukaryotes -Single or many celled organisms Have a nucleus --Organelles have a membrane around them Examples: Animals, plants, fungi
Bacteria -Smallest cells known --Live almost everywhere Example: soil, water, your bodies
Archaea Live in extreme environments Example: volcanoes, hot springs --3 Types: Heat-loving Salt-loving Methane making
Cell cycle Includes interphase, mitosis and cytokinesis.
Mitosis Where the nucleus divides 4 phases: prophase, metaphase, anaphase, telophase
Interphase Where the cell grows, makes a copy of its DNA, And prepares to divide
Prophase First phase of mitosis Nuclear membrane starts to disappear Chromosomes become visible Centrioles start to move to opposite ends of the cell.
Metaphase Chromosomes line up in the middle of the cell.
Anaphase The chromosomes split at the centromere and move to Opposite ends of the cell.
Telophase The nuclear membrane starts to reappear The cell starts to split into 2 cells Last phase of mitosis
Cytokinesis Cell splits into 2 cells
Created by: 3114591