today bell ringer review homework viewer assignment what are the four stages of mitosis? bell...
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TODAY Bell Ringer Review
homework Viewer
Assignment
What are the four stages of mitosis?
Bell Ringer
MEDIA CENTER MONDAY
Viewer Assignment
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
NOTE: Insert the slide with arrow first
TODAY Get clickers Bell Ringer Pretest Video
Put the following stages of cell division in order: cytokinesis, mitosis, interphase
Bell Ringer
Pygmy Tarsier
Remediation for the DNA summativewill begin Tomorrow at lunch
There will only be 3 summative'sthis quarter, meaning each one will
weigh more
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
D
C
A
B
ProkaryotesEukaryotes
Binary Fission Gametes
Somatic Cells (Haploid)
(Diploid)
Meiosis Mitosis
Today Complete workbook 73-76 answer
all questions
TODAY Bell Ringer Turn in
worksheet Cell division
PPT Assignment
1. What stage of the cell cycle does a cell spend most of its time in? 2. What types of cells are diploid3. What are the stages of mitosis
Bell Ringer
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 Assignment
1. What are the 3 stages of the cell cycle?
Bell Ringer
Dead Leaf
5 days of office hours leftFor remediation and Retaking the first summative
Put in the correct order
1
2
3
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
What is the name of the process when a zygote forms?
Bell Ringer
4 days of office hours leftFor remediation and Retaking the first summative
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
Hydra
Buds off new 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
1
3
2
5
4
6
8
7
DUE TODAY1. 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 meiosis4. What are the 3 main stages of the cell cycle?
Page 137 # 5,6Page 142 # 1Page 147 # 1,3,4Page 150 # 1,5Page 171 - # 3,4,5
DUE TODAY1. 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 meiosis4. What are the 3 main stages of the cell cycle?
TODAY Viewer Lab DUE TODAY Do not get any lab materials
until after directions are given
Test TomorrowTutoring after school today
(2:45-3:45) (Test Prep.)
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
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
ACROSS
DOWN
Take home and study this for the test on Thursday
TODAY Jeopardy Review
Get into your groups As usual, winners get bonus points on
the test Test tomorrow
New Rules For JeopardyNo team will loose points for incorrect answersEach 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 Sex Twin Male Zygote Interphase Fertilization Chromosome Clone Gene Diploid Homologous
Female Mitosis Meiosis Fission Autosome RNA DNA Down
Syndrome Chromatids Karyotype Centromere ChromoPhoto
STUDY AID FOR MITOSIS/MEIOSIS Test Somatic cells
All cells but reproductive cells Diploid Homologous chromosomes Mitosis
Gametes Reproductive cells Haploid Meiosis
Prokaryotes Eukaryotes
Binary Fission Gametes Somatic
Cells (Haploid) (Diploid)
Meiosis Mitosis4 cells 2 cells
Crossing over
(Reproductive cells)
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