ap biology discussion notes wednesday 11/19/2014

AP Biology Discussion Notes

Wednesday 11/19/2014

Goals for the Day1. 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 Day1. 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:– 63 multiple choice questions–6 grid in questions

• Section 2:–2 long free response–6 short free response

50%

50%

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 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

Mitosis – Cell Division (Cell Reproduction)

Mitosis PhasesInterphase – 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

Spindle Fibers

Chromatids

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

Remember IPMAT

Lets do it!

• Be the chromosome.