Monday 11/2/2015 Agenda: Cell Cycle and Division! Review of cells and organelles Activity: Catching some Killer Rays Homework: Catching some Killer Rays Worksheet due Tuesday 11/3/2015 for 30 Points

What do we already know? Prokaryotic VS Eukaryotic cells Humans have Eukaryotic cells All cells have organelles (parts) Each organelle has a function (job)

Catching Some Killer Rays Explain why skin cancer might be more prevalent in California than in Arizona. In 2009, it was reported that new melanoma cases (dangerous form of skin cancer) was identified nearly 75% higher in men than women. Explain why some people can survive skin cancer, while others can’t. Handout- Catching Some Killer Rays (Sci. Ntbk)

Catching Some Killer Rays You will be annotating the main paragraph (the larger paragraph in the center) You are to complete the worksheet questions using the textbook from pages

Tuesday 11/3/2015 Agenda: Cell Cycle and Division! Notes: Cell Cycle and Chromosomes Activity: Active Cancer Reading and Concept Map Homework: Cancer Active Reading and Concept Map due Wednesday/Thursday 11/4-11/5/2015 for 20 Points

Cell Cycle Reading Review 1.Define cancer and give an example 2.Explain the role of the checkpoints in the cell cycle 3.Describe what the term “melanoma” means? 4.What does the “G” stand for in the cell cycle? 5.In which stage is the nuclei divided? 6.In which stage is the cytoplasm divided?

Cell Cycle & Cellular Division learning goal “I can describe the purpose, phases and processes of cellular reproduction”!

The Cell Cycle Cell Cycle cut-out

Cell Cycle G1- “Growth” phase. A cell grows quickly; largest part of the cycle. The beginning phase of cell division. S- “Synthesis” phase; cell’s DNA is copied. Each chromosome consists of 2 chromatids attached at the centromere G2- “Second Growth” phase. Cell prepares for the nucleus to divide. A cell will spend nearly 90% of its life in stages G1 – G2! M- “Mitosis” phase ; nucleus is divided into 2 nuceli. Each nucleus has same number of chromosomes. C- “Cytokinesis” The cytoplasm divides and 2 NEW CELLS ARE FORMED Cell Cycle cut-out

“S” Phase: Chromosome Diagram 1q5w7wYGsePSCAFodHRwczovL3d3dy55b3V0dWJlLmNvbS93YXRjaD92PWxwQWE0VFdqSFE0 1q5w7wYGsePSCAFodHRwczovL3d3dy55b3V0dWJlLmNvbS93YXRjaD92PWxwQWE0VFdqSFE0

Cancer- Active Reading This is due Tomorrow for 20 Points!! You are to annotate each paragraph 4 times Fill in the concept map on the back Answer the questions and complete the vocabulary section!

Wednesday/Thursday 11/4-11/5/2015 Agenda: Cell Cycle and Division! Activity: Plate Full of Knowledge Notes: Stages of Mitosis Activity: Begin Mitosis Foldable Homework: No Homework Tonight!

Plate Full of Knowledge: Cancer & the cell cycle es/activity2_animations.htm es/activity2_animations.htm Each person in your group is responsible for adding “scoops” (answers) to your plate, based on each video. You will place your “scoop”, on the proper section of your plate, creating… a plate full of knowledge -Cancer & the Cell Cycle activity- gradebook

Cancer & The Cell Cycle: Plate Full of Knowledge- Questions Video 1 Scoop1: Describe the rate of cells Scoop 2: Describe how cancer cells grow Video 2 Scoop 1: Describe the “cell clock” Video 3 Scoop 1: What are tumor suppressor genes? Scoop 2:Describe their importance Video 4 Scoop 1: What are mutations?

Class discussion: Cancer and the Cell Cycle Video 1 Scoop1: Describe the rate of cells Scoop 2: Describe how cancer cells grow Video 2 Scoop 1: Describe the “cell clock” Video 3 Scoop 1: What are tumor suppressor genes? Scoop 2:Describe their importance Video 4 Scoop 1: What are mutations?

MITOSIS Q2 WK2 D2

When is mitosis used? Mitosis: reproduction of somatic (body) cells = cellular division Diploid: full # of chromosomes (2n) = 46 Haploid: half # of chromosomes (n) = 23 Somatic Cells (body cells) are Diploid Gametes (sex cells) are Haploid

Stages of Mitosis Prophase Metaphase Anaphase Telophase

Interphase: The cell prepares for division What happens…? DNA replicates Organelles replicate Cell increases in size

Interphase Animal Cell Plant Cell Photographs from:

Prophase: The cell prepares for nuclear division What happens…? DNA condenses into chromosomes, spindles form & nuclear envelope dissolves. The chromosomes become visible

Prophase Animal Cell Plant Cell Photographs from:

Metaphase: The cell prepares chromosomes for division What happens…? Chromosomes line up at the center of the cell Spindle fibers attach from daughter cells to chromosomes at the centromere

Metaphase Animal Cell Plant Cell Photographs from:

Anaphase: The chromosomes divide What happens…? Spindle fibers pull chromosomes apart ½ of each chromosome (called chromatid ) moves toward opposite pole

Anaphase Animal Cell Plant Cell Photographs from:

Telophase: The cytoplasm divides What happens…? DNA spreads out 2 nuclei form Spindles dissolve Cell membrane pinches in and forms the 2 new daughter cells

Telophase Animal Cell Plant Cell Photographs from:

Cytokinesis: Final step in division What happens…? Cytokinesis occurs when the cleavage furrow appears Division of the cytoplasm 2 identical daughter cells form