Download cell

TODAY
 Bell Ringer
 Review
homework
 Viewer
Assignment
MEDIA
CENTER
MONDAY
Bell Ringer
 What are the four
stages of mitosis?
Viewer Assignment
NOTE: Insert the slide with arrow first
 Complete the entire worksheet today
 Draw all stages for both plant and animal mitosis
 Label: nuclear envelope, chromosomes and cell membrane
or wall + describe the stages of the animal mitosis
 Complete page 142 1-4 on the back of the blue sheet
 When you finish, be sure to complete any missing
work and put the slide back in the correct sleeve
TODAY
 Get clickers
 Bell Ringer
 Pretest
Bell Ringer
 Put the following stages of cell
division in order: cytokinesis,
mitosis, interphase
 Video
Remediation for the DNA summative
will begin Tomorrow at lunch
There will only be 3 summative's
this quarter, meaning each one will
weigh more
Pygmy Tarsier
TODAY
 Bell ringer
 Cell cycle notes
 Worksheet
Bell Ringer
 What types of cell
divide during
mitosis? meiosis?
How many new cells do we
make every day?
 2 trillion
 Approximately 25
million per second
 Every 15 years your
entire body is
replaced
Terms - recap
 Gametes
 An organisms reproductive cells (sperm and egg
cells)
 Somatic Cell
 Any cell other than sperm and egg cells
Prokaryotic Cell Reproduction
 Binary fission
 Exact copies of DNA transferred
 Cell elongates, DNA replicates, cell splits
Cell Cycle
 A repeating
sequence of cellular
growth and division
during the life of an
organism
Cell Cycle
 Interphase
 Most of the cells life
 The first 3 phases of
the cell cycle
 Cell elongates
 DNA replicates
 Mitosis
 Nucleus divides in 2
 Cytokinesis
 The cytoplasm divides
Cancer
 If a gene is mutated, the protein may not
function correctly
 This can result in uncontrolled growth of
cells
Eukaryotic Cell Reproduction
 Homologous
chromosomes
 2 identical chromosomes
 46 chromosomes in human
cells (2 sets of 23)
 1 set from father, one set
from mother
Eukaryotic Cell Reproduction
 Diploid
 When a cell has two sets of
chromosomes
 Somatic cells
 Haploid
 When a cell has one set of
chromosomes
 Gametes (egg and sperm cells)
 Somatic cells
 All cells but reproductive cells
 Diploid
 Homologous chromosomes
 Replication through mitosis
 Gametes
 Reproductive cells
 Haploid
 Replication through meiosis
Eukaryotic Cell Reproduction
 Gene
 Small segment of DNA that codes for proteins
 Chromosome (has thousands of genes)
 The DNA and proteins associated with the DNA
 Chromatids
 The 2 exact copies of DNA that make up each
chromosome
 Centromere
 The point where the 2 chromatids are attached
A
B
C
D
Prokaryotes
Eukaryotes
Binary Fission
Gametes
(Haploid)
Meiosis
Somatic Cells
(Diploid)
Mitosis
Today
 Complete workbook 73-76 answer all
questions
TODAY
 Bell Ringer
 Turn in worksheet
 Cell division PPT
 Assignment
Bell Ringer
1. What stage of the cell cycle
does a cell spend most of its time
in?
2. What types of cells are diploid
3. What are the stages of mitosis
Mitosis - Terms
 Centrosome
 Releases spindles and
winds them up
 Spindles
 move chromosomes during
cell division
Mitosis – STEP 1
 Prophase
 Chromosomes coil
up
 Nuclear envelope
dissolves
 Spindle form from
centrosome
Mitosis – STEP 2
 Metaphase
 Chromosomes
move to the center
and line up
 Spindle fibers link
to chromatids
Mitosis – STEP 3
 Anaphase
 The chromosomes
separate due to the
spindle fibers
Mitosis – STEP 4
 Telophase
 A nuclear envelope
forms around the
chromosomes
 Chromosomes uncoil
Cytokinesis
 Starts when mitosis
ends
 Animal Cells
 The cytoplasm in the cell is
split in half forming 2
separate cells
Cytokinesis
 Plant Cells
 Because of cell wall, a cell plate is formed in the
middle which makes the new wall
The remainder of the day
 Complete mitosis packet
 Use your notes and 5.2 (Page 138) in your book if
needed
TODAY
 Bell Ringer
 Meiosis notes
 Short video
Bell Ringer
1. What are the 3
stages of the cell
cycle?
 Assignment
5 days of office hours left
For remediation and
Retaking the first
summative
Dead Leaf
Put in the correct order
1
3
2
4
Mitosis
1
2
3
4
Eukaryotic Cell Reproduction
 Zygote
 The fusion of 2 haploid gametes (egg and sperm)
 Fertilization
Eukaryotic Cell Reproduction
 Autosomes
 Chromosomes that are not involved in
determining the gender
 Sex chromosomes
 Chromosome that contain genes that determine
gender
Eukaryotic Cell Reproduction
 Male XY chromosome
 Female XX chromosome
Who determines the
gender of the child?
Eukaryotic Cell Reproduction
 Karyotype
 A photo of all
chromosomes for
an individual
 Helps determine
possible genetic
disorders
For the remainder of
today
 Chapter 6.1 (page 90-92)
 Also make sure you have completed
5.1.5.2 and 5.3 (page 74-81)
TODAY
 Bell Ringer
 Meiosis notes
 Assignment
4 days of office hours left
For remediation and
Retaking the first
summative
Bell Ringer
 What is the name of
the process when a
zygote forms?
Meiosis
 Provides genetic variation
 Cell division for gametes
 Produces 4 cells (mitosis 2)
 Involves 2 divisions of the nucleus
 Meiosis I and Meiosis II
How Unique Are You?
 Number of possible genetically different
siblings
 Between 2 people
 Approximately 8.5 million genetically different
sperm cells
 And 8.5 million different eggs cells
 8.5mill x 8.5mill
 About 70 trillion
Another words, there was
a 1 and 70 trillion chance
you will be you just based
on your parents
Meiosis – STEP 1
 Prophase I
 Crossing-over
 When portion of
chromatids are
exchanged
 Provides genetic
variation
Meiosis – STEP 2
 Metaphase I
 Chromosomes
move to the center
and line up
 Spindles attach
Meiosis – STEP 3
 Anaphase I
 Homologous
chromosomes move
to opposite ends of
the pole
 Because of spindles
Meiosis – STEP 4
 Telophase I
 Cytokinesis occurs
Meiosis II – STEP 5
 Prophase II
 A new spindle
forms around
chromosomes
Meiosis II – STEP 6
 Metaphase II
 Chromosomes
move to the center
and line up
Meiosis II – STEP 7
 Anaphase II
 The chromosomes
move to opposite
poles of the cell
Meiosis II – STEP 8
 Telophase II
 Cytokinesis occurs
 4 haploid offspring cells
Types of Reproduction
 Sexual Reproduction
 When 2 parents each form reproductive
cells that have one half the number of
chromosomes
 Asexual
 When a single parent passes copies of all
its genes to each offspring
 No fusion of haploids
 Spores
 Allow for reproduction without another cell
Buds off new hydra
Hydra
Types of Reproduction
 Clone
 An organism genetically identical to its
parent
Meiosis in Females
 Oogenesis
 The process by Only 1
egg (ovum) forms, the
other cells (Called
polar bodies)die
Ovary
Ovary
Terms
 Biotechnology
 Using living things or their
byproducts as a tool
 Yeast to cause dough to rise
 Genetic engineering – Big
chickens, food etc
 Pollution fighting bacteria
 Genetic Recombination
 Same as crossing over
 Mixing of DNA segments
4
1
8
2
3
5
6
7
DUE TODAY
1. Create a Venn Diagram comparing Mitosis and
Meiosis, include the following terms: Crossing over,
somatic, chromosomes, haploid, diploid, gamete, nuclear
envelope, cytokinesis, spindles, produces 4 new cells.
2. Draw and label a chromosome: include chromosome,
chromatid, and centromere.
3. What are the steps of mitosis and meiosis
4. What are the 3 main stages of the cell cycle?
Page 137 # 5,6
Page 142 # 1
Page 147 # 1,3,4
Page 150 # 1,5
Page 171 - # 3,4,5
DUE TODAY
1. Create a Venn Diagram comparing Mitosis and
Meiosis, include the following terms: Crossing over,
somatic, chromosomes, haploid, diploid, gamete, nuclear
envelope, cytokinesis, spindles, produces 4 new cells.
2. Draw and label a chromosome: include chromosome,
chromatid, and centromere.
3. What are the steps of mitosis and meiosis
4. What are the 3 main stages of the cell cycle?
TODAY
 Viewer Lab
 DUE TODAY
Test Tomorrow
Tutoring after school today
(2:45-3:45) (Test Prep.)
 Do not get any lab materials until
after directions are given
Meiosis in Males
 Spermatogenesis
 The process by which gametes are produced in
male animals
 Occurs in testes
 The 4 haploid cells change form and develop a tail
TODAY
 If you need to, finish your quiz first
 Complete crossword puzzle
 Counts towards participation grade
Peacock
Mantis
Shrimp
Test
Thursday
19 Down:
should be
cytokinesis
occurs in
this type of
cell, not
requiring a
cell plate
2. Telophase
7. Male
10. Gametes
13. Meiosis
14. Female
16. Spermatogenesis
Take
home and
study this
for the
test on
Thursday
17. Prophase
18. Interphase
21. Independent Assortment
26. Spindles
28. Chromosome
29. Somatic cell
30.Sexual Reproduction
31. Down Syndrome
32. Binary Fission
1. Fertilization
3. Autosomes
4. Gene
5. Mitosis
6. Karyotype
8. Chromatid
9. Male
11. Centromere
12. Cytokinesis
15. Asexual Reproduction
19. Animal Cells
20. Sex chromosomes
22. Cell Division
23. Clone
24. Cancer
25. Zygote
27. Oogenesis
TODAY
 Jeopardy Review
 Get into your groups
 As usual, winners get bonus points on the test
 Test tomorrow
New Rules
For Jeopardy
No team will
loose points for
incorrect
answers
Each team
can make 2
attempts in
answering but
they cannot be
back to back
TODAY
 Test
 14 fill in the blanks
 36 multiple choice
Tarpon
Word Bank
 Female
 Sex
 Mitosis
 Twin
 Meiosis
 Male
 Fission
 Zygote
 Autosome
 Interphase
 RNA
 Fertilization
 DNA
 Chromosome
 Down Syndrome
 Clone
 Chromatids
 Gene
 Karyotype
 Diploid
 Centromere
 Homologous
 ChromoPhoto
STUDY AID FOR
MITOSIS/MEIOSIS Test
 Somatic cells
 All cells but reproductive cells
 Diploid
 Homologous chromosomes
 Mitosis
 Gametes
 Reproductive cells
 Haploid
 Meiosis
Prokaryotes
Binary Fission
Eukaryotes
(Reproductive cells)
Gametes
(Haploid)
Somatic Cells
(Diploid)
Meiosis
Mitosis
4 cells
2 cells
Crossing over
 Know that crossing over is unique to prophase 1 of







meiosis and that it means DNA gets mixed up which
causes genetic variation
Understand that a karyotype is used to identify
possible genetic disorders as well as gender
Know the structure of chromosome (centromere,
chromatids, gene)
Know that a gene is a small section of DNA
The 3 stages of the cell cycle and what occurs in each
(interphase (DNA duplicated), mitosis (Nucleus
divides, cytokinesis (Cell or splits))
Know that spindles move chromosmes around in the
cell
Know that sex chromosomes determine gender and
autosomes are all other chromosomes
Male determines the gender because of the Y