1. Enter the classroom silently and find your seat.
Statement of Inquiry:
9/28/2015
Warm Up: Brain Dump
Objective(s):
(Obj 1) Analyze the flow of energy in living systems (cellular respiration)
(OBj 2) Identify the process of fermentation in the second stage of cellular respiration.
Summarize the events of the four stages of mitosis and differentiate cytokinesis in animal and plant cells.
AGENDA
7 min
Enter the classroom silently and find your seat.
Write down homework in your planner.
Warm- UP
Wait silently for instructions
Cellular respiration review
Cell Cycle
Cellular Division

2. Brain Dump
Passive transport Active transport Cellular respiration Photosynthesis Cell organelles Prokaryotes vs Eukaryotes Biomolecules

3. PASS BACK TEST go over answers… questions
PASS BACK TEST go over answers… questions?? SWITCH SLIDES…CELLULAR RESPIRATION

4. Cell Cycle, Cancer & Exit tickets
Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

5. Copyright © The McGraw-Hill Companies, Inc
Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

6. The Cell Cycle
Orderly set of steps between eukaryotic cell divisions Why do Cells Divide?
Think, Pair, Share
Growth
Reproduction
Repair

8. Cell Cycle Two major stages: Interphase – cell is not dividing
Mitotic (M) phase – cell is dividing

9. Stages of interphase Interphase
G1 phase (first gap phase) – growth phase when new organelles are produced and centrioles are produced
S phase (synthesis) – nuclear DNA is replicated
G2 phase (second gap phase) – brief growth period for production of enzymes needed for cell division, organelle and centriole production finishes

10. Stages of mitotic phase
Mitosis – nucleus divides two sets of chromosomes into two daughter nuclei (4 phases)
Cytokinesis – cytoplasm divides (usually begins during telophase)

11. Control of the Cell Cycle 
G0 Checkpoint – Cell exits cycle – nondividing cell
G1 Checkpoint - Check to see if DNA is damaged G2 Checkpoint - Check to see if DNA is replicated properly M Checkpoint - spindle assembly checkpoint, check for alignment of chromosomes 
Apoptosis - programmed cell death, if any of the checks fail

12. Prophase • Metaphase • Anaphase • Telophase
iPMAT “Please make another twin”

13. Exit tickets
Complete the biomolecule exit ticket
Place the ticket in the raspberry tray on your way out the door.

14. Objective of the day
Summarize the events of the four stages of mitosis and differentiate cytokinesis in animal and plant cells.

15. Cell Cycle, Cancer & Cell Division
Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

16. Copyright © The McGraw-Hill Companies, Inc
Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

17. WHY?
5 min
Why some of the cells are smaller than others?

18. Reason
They have recently divided and have not grown to full size.

19. Statement of Inquiry/IB Trait
The relationship between the structure and function of our parts is one way that we define what it means to be human.
IB TRAIT: KNOWLEDGEABLE, COMMUNICATORS and INQUIRERS

20. Homework Write definitions for: gene chromosome chromatid
homologous chromosome
prophase
Metaphase
Anaphase
telophase
mitosis
cytokinesis

21. Cellular Division

22. DNA Replication DNA must be copied or replicated before cell division
Each new cell will then have an identical copy of the DNA
Original DNA strand
Two new, identical DNA strands

23. Chromosomes

24. Prokaryotic Chromosome
The DNA of prokaryotes (bacteria) is one, circular chromosome attached to the inside of the cell membrane

25. Eukaryotic Chromosomes
All eukaryotic cells store genetic information in chromosomes
Most eukaryotes have between 10 and 50 chromosomes in their body cells
Human body cells have 46 chromosomes or 23 identical pairs

26. Eukaryotic Chromosomes
Each chromosome is composed of a single, tightly coiled DNA molecule
Chromosomes can’t be seen when cells aren’t dividing and are called chromatin

27. Chromosomes in Dividing Cells
Duplicated chromosomes are called chromatids & are held together by the centromere
Called Sister Chromatids

28. Karyotype
A picture of the chromosomes from a human cell arranged in pairs by size
First 22 pairs are called autosomes
Last pair are the sex chromosomes
XX female or XY male

29. The Y Chromosome Decides
Boy or Girl?
The Y Chromosome Decides
Y - Chromosome
X - Chromosome

30. Prokaryotic Cell Undergoing Binary Fission

31. Mitosis

32. Eukaryotic Cell Division
Used for growth and repair
Produce two new cells identical to the original cell
Cells are diploid (2n)
Chromosomes during Metaphase of mitosis
Cytokinesis
Anaphase
Prophase
Metaphase
Telophase

33. Mitosis Division of the nucleus Also called karyokinesis
Only occurs in eukaryotes
Has four stages
Doesn’t occur in some cells such as brain cells

34. Four Mitotic Stages
Prophase
Metaphase
Anaphase
Telophase

35. Prophase
What the cell looks like
What’s happening

36. Metaphase
Chromosomes, attached to the kinetochore fibers, move to the center of the cell
Chromosomes are now lined up at the equator
Equator of Cell
Pole of the Cell

37. Metaphase Asters at the poles Spindle Fibers
Chromosomes lined at the Equator

38. Anaphase Occurs rapidly
Sister chromatids are pulled apart to opposite poles of the cell by kinetochore fibers

39. Anaphase
Sister Chromatids being separated

40. Telophase Sister chromatids at opposite poles Spindle disassembles
Nuclear envelope forms around each set of sister chromatids
Nucleolus reappears
CYTOKINESIS occurs
Chromosomes reappear as chromatin

41. Comparison of Anaphase & Telophase

42. Cytokinesis Means division of the cytoplasm
Division of cell into two, identical halves called daughter cells
In plant cells, cell plate forms at the equator to divide cell
In animal cells, cleavage furrow forms to split cell

43. Cytokinesis
Cleavage furrow in animal cell
Cell plate in plant cell

44. Daughter Cells of Mitosis
Have the same number of chromosomes as each other and as the parent cell from which they were formed
Identical to each other, but smaller than parent cell
Must grow in size to become mature cells (G1 of Interphase)

46. Song Time

47. Mitosis in Onion Root Tips
Do you see any stages of mitosis?

48. Can we identify the Stages?
Early, Middle, & Late Prophase ? ? ?
Metaphase
Anaphase
Late Prophase ? ? ?
Telophase & Cytokinesis
Late Anaphase
Telophase

49. Locate the Four Mitotic Stages in Plants
Anaphase
Telophase
Metaphase
Prophase

50. Talk to someone you have not talked to today. 25 jumping jacks
3 min
Brain Break here
Ideas:
Drink water
Talk to someone you have not talked to today.
25 jumping jacks
Simon Says
One minute dance party

51. Guided Practice #2
10min
Draw pictures of each stage of mitosis on four note cards. On one side, write the name of the stage. On the opposite side, draw an accurate sketch of the stage.

52. Turn and Talk Discuss what your diagrams look like and compare your phases.
2 min
(Introduce Yourself)

53. Mitotic Phases

54. Independent Practice
10 min
Complete the Independent Practice #2 section of your guided notes.
Describe the events that occur during each of the four stages of mitosis.
Compare how cytokinesis occurs in plant cells with how it occurs in animal cells.
Voice level 0

55. Exit Ticket
5 min
Complete the exit ticket silently and stack at your table group when you are finished.
You may pack up your things.

56. STOP Cards
S Summarize: Summarize the day’s lesson and what we learned.
T Trait: What IB trait relates to the lesson?
O Objective: Re-state in your own words and say whether or not we met that objective for the day.
P Purpose: What was the purpose of this lesson?

57. Exit Procedure SILENTLY Pack up all of your things.
Wait for teach directions to:
Push in your chair.
Form a line at the door.
Silently exit the classroom.
Hallways are a Level 1 (whisper)