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AP Biology Discussion Notes
Wednesday 11/19/2014
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Goals for the Day1. Be able to be good AP test takers
2. Be able to interpret and create appropriate phylogenetic trees.
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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.
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Goals for the Day1. Be able to be good AP test takers
2. Be able to interpret and create appropriate phylogenetic trees.
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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.
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Learning• An ACTIVE process
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Metacognition
• Thinking about our thinking
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Learning
• I feel like I am able to learn from the reading assignments or to gather questions to ask.
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Grab a book & get out your questions
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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?
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#9 A B & C
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• Pg 543
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#9 A B & C
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#9 A
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#9 A B & C
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#9 B
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AP Practice Questions• Format of AP BIO Exam
• Section 1:– 63 multiple choice questions–6 grid in questions
• Section 2:–2 long free response–6 short free response
50%
50%
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AP Practice Questions• #2 Phylogeny Building
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AP Practice Questions• #5 Apple 21
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AP Practice Questions• #8 – 16 - stickleback
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AP Practice Questions• #19 stickleback
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AP Practice Questions• #20 - stickleback
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Questions
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Goal
• Be able to describe and identify the
stages of the cell cycle (in eukaryotes)
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Cell Division
• Before the control center ( )divides it must replicate its most important feature, the _______ which is housed in the nucleus of eukaryotes.
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Cell Cycle• Interphase –
where a cell spends the majority of its life (over 90%)
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Cell Cycle• Purpose of the cell cycle
to reproduce, repair, & replace cells.
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Cell Cycle
• Mitosis – can be divided into 5 basic parts
• Prophase• Metaphase• Anaphase• Telophase
– Cytokinesis
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5 Phases of the cell cycle1. 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
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Mitosis – Cell Division (Cell Reproduction)
Mitosis PhasesInterphase – This is where a cell spends a majority of its life.
Nucleus Cell
Membrane
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Prophase –Centrioles and Spindle Fibers start to appear
Chromosomes become visible
Nuclear Membrane disappears
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Metaphase –
Chromosomes line up in the middle of the cell
(“meta” means middle)
Centrioles
Spindle Fibers
Chromosomes
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Anaphase –
Spindle fibers separate the chromatids and pull them to opposite ends of the cell.
Centriole
Spindle Fibers
Chromatids
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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
Chromosomes Nuclei
Cell Membrane
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Remember IPMAT
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Lets do it!
• Be the chromosome.