11/29 & 11/ th Grade Agenda Learning Objective: Learn about Cancer & Stem Cells Collect HW: Reading & Note Taking p.79 – 80 Cell Cycle Quiz Brainpop: Stem Cells & Specializations & Cancer, Mitosis Chap 4 Study Guide Class Reading p HW: Reading & Note Taking p.81 – 84 Reminder: Chap 4 Test on 12/5

Reflection Prompt: Copy the drawing of the Cell Cycle on p. 132 – 133. Label each phase.

Cell Cycle Interphase Prophase Metaphase Anaphase Telophase Cytokinesis ? ? ? ? ? ?

DNA – Deoxyribonucleic Acid Nitrogen Based Molecules (4 Letters of DNA Alphabet) A pairs up with ____ G pairs up with ____ T C

Cell Cycle Stage 1: Interphase: Period before cell division occurs. –Cell doubles in size –Copy the DNA in its nucleus

Cell Cycle Stage 2: Mitosis –One copy of the DNA is distributed into each of the two daughter cells

Cell Cycle Stage 3: Cytokinesis –Cytoplasm divides

Cell Cycle Facts Some cells divides every 2 hours or less Human Liver cells divides every 22 hours There are about _____ million cells dividing in your body right now!! Most cells divide but human b_____ cells never divide. 100 rain

Cell Cycle Facts Some cells divides every 2 hours or less Human Liver cells divides every 22 hours There are about 100 million cells dividing in your body right now!! Most cells divide but human brain cells never divide.

Chromosomes

DNA Replication DNA looks like a spiral staircase “double helix” Two sides of DNA ladder are made up of sugar called deoxyribose and Phosphate Adenine always pairs with Thymine Cytosine always pairs with Guanine

Cancer What is Cancer Mutation: Damage to the DNA

Cancer Cancer begins when mu________ disrupt the normal cell cycle causing cells to di_________ in an uncontrolled way Eventually a tu______ (a mass of abnormal cells) forms. tation vide mor

How Cancer Spreads

Treating Cancer Surgery: Only effective during early stages Radiation: Radiation also destroy healthy cells Chemotherapy: Uses of drugs to kill cancer cells. Side effect: Also kills healthy cells.

Cancer Prevention 2/3 of all cancer deaths are caused by tobacco use or unhealthful diets Smoking is the main cause of lung cancer

Cancer Prevention Diet high in fat (fatty meats, fried foods) is harmful Diet that includes a lot of fruits, vegetables and grain products can lower some type of cancer.

Differentiation As cells differentiate, they become diff_____ from one another. errent

Stem Cells Stem Cells respond to specific needs in the body by becoming a spec____zed ce___ iali ll

Cell Cycle Quiz: Groups of 3 students p.132 & 133 Front of the card Back of the card Name of the Phase : Mitosis: Prophase 1. Each student will create 2 cards 2. The group will combine their cards to complete the cell cycle 3. Students in each group will quiz each other with their flash cards 4.Apprentices will come around and quiz and grade each of the group