* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Cell Cycle Cornell Notes What happens in the cell cycle? Interphase
Survey
Document related concepts
Cytoplasmic streaming wikipedia , lookup
Spindle checkpoint wikipedia , lookup
Signal transduction wikipedia , lookup
Cell encapsulation wikipedia , lookup
Cell nucleus wikipedia , lookup
Extracellular matrix wikipedia , lookup
Cell membrane wikipedia , lookup
Cellular differentiation wikipedia , lookup
Programmed cell death wikipedia , lookup
Endomembrane system wikipedia , lookup
Cell culture wikipedia , lookup
Organ-on-a-chip wikipedia , lookup
Cell growth wikipedia , lookup
Biochemical switches in the cell cycle wikipedia , lookup
Cytokinesis wikipedia , lookup
Transcript
Cell Cycle Cornell Notes What happens in the cell cycle? p. 73 1/7/13 Interphase interphase is actually made up of 3 parts G1 = cell is growing and doing its normal job S = DNA and centrioles replicate G2 = cell is growing and getting ready to divide *part of the cell cycle, but not mitosis Jan 79:01 AM Cell Cycle Cornell Notes What happens in the cell cycle? p. 73 1/7/13 Prophase DNA packs together to form chromosomes (chromosomes are X shaped) nuclear membrane disappears or dissolves centrioles move to opposite ends of the cell *first step of mitosis Jan 79:01 AM 1 Cell Cycle Cornell Notes What happens in the cell cycle? p. 73 1/7/13 Metaphase chromosomes line up in the center of the cell (along the equator of the cell) spindle fibers attach to the chromosomes at the centromere *second step of mitosis Jan 79:01 AM Cell Cycle Cornell Notes What happens in the cell cycle? p. 73 1/7/13 Anaphase chromatids are pulled apart to opposite ends of the cell 1/2 of a chromosome is called a chromatid *third step of mitosis Jan 79:01 AM 2 Cell Cycle Cornell Notes What happens in the cell cycle? p. 73 1/7/13 Telophase new nuclear membranes form DNA stretches out cell membrane and cytoplasm begin to pinch together *fourth (final) step of mitosis Jan 79:01 AM Cell Cycle Cornell Notes What happens in the cell cycle? p. 73 1/7/13 Cytokinesis cell membrane and cytoplasm pinch together cell completely splits to form two identical daughter cells *part of the cell cycle, but not mitosis Jan 79:01 AM 3 Cell Cycle Cornell Notes What happens in the cell cycle? p. 73 1/7/13 Why do cells divide? to help the body grow to replace old and dying cells - to keep the body healthy What is the purpose of mitosis? to separate the two copies of DNA so that both daughter cells have a complete copy of identical DNA Jan 79:01 AM Practice cell cycle control: http://www.nobelprize.org/educational/medicine/2001/cellcycle.html Jan 79:28 AM 4 Practice identifying the steps of the cell cycle: http://www.biology.arizona.edu/cell_bio/activities/cell_cycle/cell_cycle.html Jan 79:28 AM More cell cycle practice: http://app.discoveryeducation.com/player/?assetGuid=1cfccb34-38e6-43bc-8d66-70941bafcc2b&fromMyDe=0 &isPrinterFriendly=0&provider=&isLessonFromHealth=0 &productcode=DSC&isAssigned=false&includeHeader=YES&homeworkGuid= Jan 79:33 AM 5 http://teachertube.com/viewVideo.php?video_id=81750 #sthash.TA60TS0W.dpuf Jan 710:11 AM 6