Miss Hanna Biology The Cell Cycle: Growth & Division of
Body Cells
Slide 2
Journal Week 12- Friday 11/7 J- Write a 3 sentence reflection
on your performance on your quiz yesterday. (What was your grade,
did you study, what mistakes did you make, what information did you
know really well, what information did you struggle with, etc) When
finished staple journals Week 11 &12 together and turn them in
MAKE SURE YOUR NAME IS ON IT!! TI- none CW- Set Up Cell Cycle Notes
HW- Interactive Reader pgs 93- 102 DUE Wed 11/12, Cell Cycle Flip
Lesson DUE MON 11/10
Slide 3
Update Table of Contents, Title & Number each of the
following pgs Left SideRight Side Cell Growth & Reproduction
Flow Chart, 47Cell Cycle Check List, 48 Cell Cycle Power Notes,
49Cell Cycle Overview, 50 Growth Phase- Interphase, 51Division
Phase- Power Notes, 52 Mitosis- Prophase, 53Mitosis- Metaphase, 54
Mitosis- Anaphase, 55Mitosis- Telophase, 56 Cytokinesis, 57Abnormal
Cell Cycle, 58
Slide 4
Journal Week 13- Monday 11/10 J- Explain the parts of the cell
cycle. Why is it important for cells to divide? TI- Bozeman Cell
Cycle Flip Lesson CW- Cell Cycle Power Notes (pg 49) and Overview
(pg 50) HW- Finish Power Notes Questions DUE Tues 11/11,
Interactive Reader pgs 93-102 DUE Wed 11/12,Cell Cycle Quiz Mon
11/17 (50 pts), Cell Unit Part 2 (Photosynthesis, Cellular
Respiration & Cell Cycle) Test Wed 11/19 (200pts) Cell unit
folder DUE Th 11/20 Left SideRight Side Cell Cycle Power Notes,
49Cell Cycle Overview, 50
Slide 5
1) Types of Cells 1a) Body Cells- (Somatic) 1b) Sex Cells-
(Gametes)
Slide 6
2) Types of Reproduction 2a) Mitosis/ The Cell Cycle Body cells
o46 Chromosomes o2 Sets of 23 Chromosomes 2b) Meiosis Sex cells o2
Chromosomes o1 from each parent
Slide 7
2a) Body Cell Reproduction Stages The Cell Cycle i) The Cell
Cycle has 4 stages Growth phase & Division phase Growth Phase
(G1, S, G2)= Interphase Division Phase (M)= Mitosis &
Cytokinesis ii) The Cell Cycle as a whole: A)Interphase: Growth
Phase 1) G1- period of cell growth before the DNA is duplicated 2)
S- period when DNA is duplicated (synthesized) 3) G2- period of
cell growth after DNA is duplicated. Cell prepares to divide B)
Mitosis: Division of Nucleus AKA- PMAT 1) Prophase 2) Metaphase 3)
Anaphase 4) Telophase C) Cytokinesis: Division of Cytoplasm
Slide 8
Journal Week 13- Tuesday 11/11 J- Explain what the growth phase
and the division stage are in the Cell Cycle and how they are
broken down. TI- Check Cell Cycle Power Notes Questions CW- Growth
Phase- Interphase Notes (pg 51) and Division Phase- Power Notes (pg
52) HW- Interactive Reader pgs 93-102 DUE Wed 11/12, Cell Cycle
Quiz Mon 11/17 (50 pts), Cell Unit Part 2 (Photosynthesis, Cellular
Respiration & Cell Cycle) Test Wed 11/19 (200pts) Cell unit
folder DUE Th 11/20 Left SideRight Side Growth Phase- Interphase,
51Division Phase- Power Notes, 52
A) Interphase Cell grows in size, Make Organelles and Proteins
Longest stage of the cell cycle Carries out normal cell processes
Duplicates DNA Checks for mistakes and make sure everything is
needed for cell reproduction G1 phase cell grows to double in size
and makes copies of organelles S phase chromosomes are replicated
G2 Prepares for division
Slide 11
Journal Week 13- Wednesday 11/12 J- List and describe the three
stages of interphase TI- Interactive Reader pgs 93-102 CW- Mitosis
Notes (pg 53, 54, 55, 56) HW- Cell Cycle Quiz Mon 11/17 (50 pts),
Cell Unit Part 2 (Photosynthesis, Cellular Respiration & Cell
Cycle) Test Wed 11/19 (200pts) Cell unit folder DUE Th 11/20,
Identify the Cell Cycle worksheet DUE Fri 11/14 Left SideRight Side
Mitosis- Prophase, 53Mitosis- Metaphase, 54 Mitosis- Anaphase,
55Mitosis- Telophase, 56
Slide 12
B1) Mitosis- Prophase P= Prepare Nucleus begins to break down
Longest stage of Mitosis Nucleolus disappears Spindle fibers begin
to appear Chromosomes condense and Sister chromatids (DNA) appear
Centrioles move to opposite sides of the nucleus Mitotic spindle
begins to form out of the centrioles
Slide 13
B2) Mitosis- Metaphase M= Middle Sister chromatids (DNA) line
up in middle of cell on spindle fibers, centromeres attach to
spindles Centrioles connect to each end of the spindle fibers
Slide 14
B3) Mitosis- Anaphase A= Apart Sister chromatids (aka daughter
chromosomes) split at centromeres Sister chromatids (DNA) move to
opposite sides of cell
Slide 15
B4) Mitosis- Telophase T= Two New Nuclei Chromosomes at
opposite ends Cell begins to pinch and form 2 new daughter cells
(cleavage furrow) Nucleus reforms in each cell Nucleolus reappears
New Nuclei in each cell Chromosomes de-condense back into chromatin
Mitosis is finished
Slide 16
Journal Week 13- Thursday 11/13 J- If an organism has 23
chromosomes: A) how many cells will be produced at the end of the
cell cycle? B) how many chromosomes will be in each cell? TI- none
CW- Cytokinesis (pg 57) and Abnormal Cell Cycle Power Notes (pg 58)
HW- Cell Cycle Quiz Mon 11/17 (50 pts), Cell Unit Part 2
(Photosynthesis, Cellular Respiration & Cell Cycle) Test Wed
11/19 (200pts) Cell unit folder DUE Th 11/20, Identify the Cell
Cycle Worksheet DUE Fri 11/14 Left SideRight Side Cytokinesis,
57Abnormal Cell Cycle Power Notes, 58
Slide 17
C) Cytokinesis Division of the cytoplasm and organelles in the
cell Plant cells: a cell plate forms, dividing daughter cells
Animal cells: cleavage furrow forms at the equator and pinches
inward until cell divides in two Two new IDENTICAL cells made
Slide 18
Asexual vs. Sexual Reproduction Reproduction is a process that
makes new organisms from one or more parent organisms. Occurs in 2
ways: Sexual & Asexual Sexual: reproduction that involves the
joining of 2 specialized cells called gametes (egg & sperm), 1
from each parent Genetically Unique- mixture of genes from 2
parents Asexual: creation of offspring from a single parent,
genetically identical What is mitosis? Sexual or Asexual
Slide 19
Types & Benefits of Asexual Rep. Binary Fission: asexual by
rep. of a single-celled organism by division into 2 roughly equal
parts Most prokaryotes reproduce by B.F. Makes 2 daughter cells
identical to parent Advantages of Asexual Rep. If it aint broke,
dont fix it Disadvantages of Asexual Rep. Not good for changing
environment conditions
Slide 20
Multicellular Organisms Multicellular Organisms depend on
interactions among different cell types. **Do you remember the
levels of organization?** Cell ( ) Organ ( Systems)-( ) Specialized
cells perform specific functions Cell Differentiation: process
where unspecialized cells develop into mature forms and functions
Location in the embryo helps determine how it will
differentiate
Slide 21
Cell Cycle Regulation The timing and rate of cell division is
important to the health of an organism The rate of cell division
varies depending on the type of cell. Checkpoints occur during most
of the cell cycle to ensure that the cell divides accurately. If a
cell does not pass G0 then it will not divide
Slide 22
Quality Control Checkpoints The cell cycle has built in check
points that monitor the cycle and can stop it if something goes
wrong. For example: A checkpoint near the end of G1 monitors for
DNA damage and can stop the cycle before it enters the S phase of
interphase There are other quality checkpoints during S phase and
after DNA replication to make sure the DNA has replicated
correctly
Slide 23
Abnormal Cell Cycle: Cancer Although the cell cycle has a
system of quality control checkpoints, sometimes the process fails.
Cancer- the uncontrolled growth and division of cells Example:
Normal Stomach CellsTime in stage Interphase120 min Prophase60 min
Metaphase10 min Anaphase3 min Telophase12 min Cancer Stomach
CellsTime in stage Interphase16 min Prophase15 min Metaphase2 min
Anaphase1 min Telophase3 min
Slide 24
Cell Cycle Regulation Not every cell is destined to survive.
Apoptosis- programmed cell death Examples: A) during development of
the human hand and foot, cells occupy the spaces between the
fingers and toes. Normally this tissue goes under apoptosis, with
the cells shriveling and dying at the appropraite time so that the
webbing is not present in the mature organism. B) apoptosis in
plants is the localized cell death so that the leaves fall off the
trees in autumn C) cells with damage to their DNA or that are
damaged beyond repair.
Slide 25
Stem Cells Stem Cells: a unique type of body cell that can (1)
divide and renew themselves for a long time, (2) remain
undifferentiated, (3) develop into a variety of specialized cell
types
Slide 26
Journal Week 13- Friday 11/14 J-Cell Cycle Concept Check (15
pts) Write the question and correct answer for any that you get
wrong TI- Identify the Cell Cycle worksheet CW- Stem Cell Opinion
Paragraph HW- Cell Cycle Quiz Mon 11/17 (50 pts), Cell Unit Part 2
(Photosynthesis, Cellular Respiration & Cell Cycle) Test Wed
11/19 (200pts) Cell unit folder DUE Th 11/20, The Cell Cycle
Worksheet DUE Mon 11/17
Slide 27
Clicker Concept Quiz 1)Which of the following best represents
the 4 stages of Mitosis in order? A) Metaphase, Telophase,
Cytokinesis, Prophasse B) Telophase, Prophase, Metaphase, Anaphase
C) Prophase, Metaphase, Anaphase, Telophase D) Telophase, Anaphase,
Metaphase, Prophase 2) (Choose 2) What phases of the cell cycle are
not a part of Mitosis? A) Metaphase B) Cytokinesis C) Anaphase D)
Interphase 3) Which structures aid in pulling sister chromatids
apart in cell division? (choose all that apply) A) Centrioles B)
Spindle Fibers C) Membrane D) Cytoplasm 4) Which words best
describes the cells produced from the cell cycle? A) Different B)
Opposite C) Identical D) Haploid 5) True/False: Mitosis is the
division of the nucleus in somatic (gametes) cells.
Slide 28
Turn to page 162 Stem Cell ResearchPotential Solutions,
Practical Challenges Get out a piece of paper and something to
write with Read the article Stem Cell Research-Potential Solutions,
Practical Challenges You will need to write a opinion on whether or
not you think stem cell research should be banned. Since it is
opinion, there is NO wrong answer, however you must include facts
to support your opinion IT MUST INCLUDE: Your stand (Should stem
cell research be banned? Yes or no) 2 PARAGRAPHS (at least 5
sentences EACH) 3 cited (put parentheses around them) facts from
the article
Slide 29
Journal Week 14- Monday 11/17 J- Bozeman video Phases of
Mitosis- 10 facts TI- The Cell Cycle Worksheet CW- Cell cycle quiz
(50 pts) HW- Cell Unit Part 2 (Photosynthesis, Cellular Respiration
& Cell Cycle) Test Wed 11/19 (200pts) Cell unit folder DUE Th
11/20, Give Thanks party supplies DUE Fri 11/21
Slide 30
Journal Week 14- Tuesday 11/18 J- Write your Red/Yellow/Green
Topics for Part 2 in your journal TI-none CW- Cell Unit Part 2 Test
Review HW- Cell Unit Part 2 (Photosynthesis, Cellular Respiration
& Cell Cycle) Test Wed 11/19 (200pts) Cell unit folder DUE Th
11/20, Give Thanks party supplies DUE Fri 11/21
Slide 31
Journal Week 14- Wednesday 11/19 J- Write a 5 sentence
reflection of your test performance, TI- none CW- Cell Unit Part 2
Test (200pts) HW- Cell unit folder DUE Th 11/20, Give Thanks party
DUE Fri 11/21
Slide 32
Journal Week 14- Thursday 11/20 J- Identify one topic you have
enjoyed learning about this year so far, which topic have you
struggled with the most? TI- none CW- Finish Cell Unit Folder DUE
by the end of the period HW- Give thanks party supplies DUE Fri
11/21
Slide 33
Journal Week 14- Friday 11/21 J- none Keep journals week 13
& 14 until we get back from break TI- none CW- Give Thanks
Party! HW- Have a safe and happy Thanksgiving!