AP Biology Discussion Notes Wednesday 11/19/2014 Goals for the Day 1. Be able to be good AP test takers 2. Be able to interpret and create appropriate phylogenetic trees. Practice AP questions • Enter responses on google form • Check answers with key • Write a paragraph about what you think you could change about your thinking or responses, or what you need to keep doing. Goals for the Day 1. Be able to be good AP test takers 2. Be able to interpret and create appropriate phylogenetic trees. Practice AP questions • Enter responses on google form • Check answers with key • Write a paragraph about what you think you could change about your thinking or responses, or what you need to keep doing. Learning • An ACTIVE process Metacognition • Thinking about our thinking Learning • I feel like I am able to learn from the reading assignments or to gather questions to ask. Grab a book & get out your questions How do you read? • • • • • • • What do you do while reading? Do you summarize each point? How do you decide what is important? Do you do the end of section questions? Do you read the summaries at the end? Turn to 555 Do you check your answers? #9 A B &C • Pg 543 #9 A B &C #9 A #9 A B &C #9 B AP Practice Questions • Format of AP BIO Exam • Section 1: 50% – 63 multiple choice questions – 6 grid in questions • Section 2: 50% – 2 long free response – 6 short free response AP Practice Questions • #2 Phylogeny Building AP Practice Questions • #5 Apple 21 AP Practice Questions • #8 – 16 - stickleback AP Practice Questions • #19 stickleback AP Practice Questions • #20 - stickleback Questions Goal • Be able to describe and identify the stages of the cell cycle (in eukaryotes) Cell Division • Before the control center ( )divides it must replicate its most important feature, the _______ which is housed in the nucleus of eukaryotes. Cell Cycle • Interphase – where a cell spends the majority of its life (over 90%) Cell Cycle • Purpose of the cell cycle to reproduce, repair, & replace cells. Cell Cycle • Mitosis – can be divided into 5 basic parts • Prophase • Metaphase • Anaphase • Telophase – Cytokinesis 5 Phases of the cell cycle 1. First growth (G1) phase cell grows rapidly and carries out its routine functions. 2. Synthesis (S) phase A cell’s DNA is copied 3. Second growth (G2) phase prepares for the nucleus to divide. 4. Mitosis the nucleus of a cell is divided into two 5. Cytokinesis the cytoplasm divides Mitosis – Cell Division (Cell Reproduction) Mitosis Phases Interphase – This is where a cell spends a majority of its life. Nucleus Cell Membrane Prophase – Centrioles and Spindle Fibers start to appear Chromosomes become visible Nuclear Membrane disappears Metaphase – Chromosomes line up in the middle of the cell (“meta” means middle) Centrioles Spindle Fibers Chromosomes Anaphase – Spindle fibers separate the chromatids and pull them to opposite ends of the cell. Centriole Chromatids Spindle Fibers Telophase – Cell membrane starts to pinch in the middle Two new nuclei start to form in each new cell Chromosomes disappear into the nucleus Cytokinesis – the dividing up of the cytoplasm Cell Membrane Chromosomes Nuclei Remember IPMAT Lets do it! • Be the chromosome.