Topic: Reproduction
Aim: Describe the processes of asexual
reproduction and mitosis.
Do Now: Take out your repro reading notes.
With your 12 o’clock partner, discuss #’s 1 – 3
from your Repro ISN and the immune system
questions on the next slide
(YOU HAVE 4 MINUTES)
HW: Meiosis Reading Notes due Friday.
CL Skeletal and Muscular due tomorrow.
Immune System due Friday
Immunity Review
1.Why is active immunity long term?
2.Identify the two ways you can get active
immunity to a disease.
3.Identify the immune system disorder being
described:
a. It weakens the immune system so that the person
can no longer fight pathogens
b. The body attacks your own body cells
c. Cells divide uncontrollably
d. The body reacts to a harmless substance.
Where is DNA found in a cell?
• In the nucleus
• Chromosomes:
– Made of genes  DNA
gene
1. How
many cells
are
produced
as a result
of
mitosis?
• 2 cells
2. Identify
the name
of the new
cells
produced
as a result
of mitosis.
• Daughter cells
daughter cells
3.
• Identical copies
Compare • Same genetic code
the two
• Same # of chromosomes
new cells
50
produced.
50
50
4. If the
• 46
original cell
consists of 46
chromosomes,
how many will
be found in
the daughter
cells.
46
46
46
5.
Identify
the 5
phases
of
mitosis.
•
•
•
•
•
Interphase
Prophase
Metaphase
Anaphase
Telophase
6. Identify • Duplicating chromosomes
centromere
the main
event that
occurs
chromatid
during
interphase.
centromere
chromatid
1 chromatid
2 chromatids
7. Identify •
3 events •
that occur •
during
prophase.
Centrioles get to right position
Spindle fibers form
Nuclear membrane breaks down
Spindle fibers
8. Identify •
the main
event that •
occurs
during
metaphase.
Chromosomes line up along
central axis.
Spindle fibers attach to
centromeres.
Chromosomes
Spindle fibers
Centrioles
10.
•
Identify
the main
event that
occurs
during
anaphase.
Chromatids pulled to each
end.
Chromosome
Spindle fibers
What are the spindle fibers attached
to????
11.
•
Describe •
the 2
events
that occur
during
telophase.
Cytokinesis
Nuclear membrane reforms
Cytokinesis – cell membrane
“pinches in” to split cell into 2
pieces
• Plant cells: cell plate forms
Interphase
Chromosomes replicating
Prophase
Nuclear membrane breaks down, spindle fibers
form, centrioles move to opposite poles
Metaphase
Chromosomes line up in the middle
Anaphase
Chromatids pull apart and move to opposite
poles.
Telophase
Nuclear membrane reforms and cytokinesis
occurs.
Interphase
Daughter cells
are genetically
identical to
each other and
parent cell.
(same # of
chromosomes)
Chromosomes replicating
Mitosis – bone cells
Parent cell
Anaphase
Prophase
Metaphase
Telophase
Rat – epithelial cells
REMEMBER!
Interphase
Prophase
Metaphase
Anaphase
Telophase
http://www.youtube.com/watch?v=PQyAXiH5RrI
IPMAT
Let’s Review!
1.Describe where chromosomes are found and
what they are made up of.
2.Describe 2 characteristics of asexual
reproduction.
3.Describe what occurs at each phase of mitosis.
Infectious diseases are caused by
1. deficiencies in the diet
2. allergies
3. microscopic organisms that can be
transmitted from one organism to
another
4. malfunctioning organs
A person with AIDS is likely to develop
infectious diseases because the virus
that causes AIDS
1. destroys cancerous cells
2. damages the immune system
3. increases the rate of antibody
production
4. increases the rate of microbe
destruction
In some individuals, the immune
system attacks substances that are
usually harmless, resulting in
1. an allergic reaction
2. a form of cancer
3. an insulin imbalance
4. a mutation
Uncontrolled cell division is known
as
1.allergies
2.cancer
3.AIDS
4.infectious
The type of immunity in which
antibodies and memory cells are
produced is called
1. temporary immunity
2. active immunity
3. passive immunity
4. long-term immunity
1 & 2: interphase
3,4,& 5: prophase
6:metaphase
7 & 8: anaphase
9 & 10: telophase (& cytokinesis)
http://www.youtube.com/watch?v=Y6j36p3s
8ts&feature=player_embedded#at=33