Transcript Do Now

Topic: Reproduction
Aim: EXAM
Do Now: Take our yesterday’s
reading notes and then CLEAR
YOUR DESKS.
HW: Castle Learning due Tuesday!
Topic: Reproduction
Aim: Describe the stages of embryonic
development.
Do Now: Take our yesterday’s reading notes.
HW: Take Home Test due Monday!!!!
1. Identify the labeled
structures in the diagram.
2. Identify the bones that vertebrae
protect the spinal cord.
D
vertebrae
3. Identify the bones that
protect the brain.
cranium
4. Identify the bones that
protect the heart and lungs.
rib cage
5. Where is cartilage found?
In rib cage, tip of nose, ears,
between bones (joints), between
vertebrae
A
cranium
rib cage
B
C
humerus
E
pelvis
F
femur
Part of the body’s first line of
defense against disease-causing
organisms is
a. the immune system
b. the skin
c. antibodies
d. interferon
Which substances may form in the
human body due to invaders
entering the blood?
a. nutrients
b. vaccines
c. antibodies
d. red blood cells
Molecules that are foreign to your
body are called
a. antibodies
b. white blood cells
c. antigens
d. histamines
Which statement regarding
antibodies is correct?
a. Antibodies engulf the pathogen.
b. Antibodies are found on the
surface of pathogens.
c. Antibodies attach to antigens that
are on the surface of pathogens.
d. Receiving antibodies provides
active immunity.
Once you have had the chicken pox,
it is unlikely that you will ever get
the disease again because your
body has developed a(n)
a. passive immunity.
b. addiction.
c. active immunity.
d. antibiotic.
Immunity that occurs when a body
receives antibodies is called
_________immunity.
a. Passive
b. Temporary
c. Shortened
d. Active
An injection of a weakened virus
that allows one to develop
immunity against a disease is
called a
a. antibody
b. vaccine
c. epidemic
d. pathogen
1. Identify • Fertilization
the process
that results
in a zygote.
2. Identify
or DRAW
the process
of
fertilization.
FERTILIZATION
ZYGOTE
fertilization
zygote
3. Identify • Cleavage
the name of
the process
in which the
zygote
undergoes
mitosis.
4. Identify
or DRAW
the
cleavage.
fertilization
zygote
cleavage
• No cell growth
zygote
2
3
1
5
4
1.Identify the zygote.
2.Identify the stages that represent
cleavage.
5. Identify • Morula
the
structure
that forms
as a result
of
cleavage.
6. Describe • A solid ball of cells
the
structure
of a
morula.
7. Identify
or DRAW a
morula.
fertilization
zygote
cleavage
morula
8. Identify • Blastula
the
structure
that forms
AFTER the
morula.
9. Describe • Hollow ball of cells
the
structure
of a
blastula.
10.
Identify or
DRAW a
blastula.
fertilization
zygote
cleavage
morula
blastula
This
takes
about
6–7
days
http://www.youtube.com/watch?v=6lnr4HWiz9M
zygote
2
cleavage
1
5
4
1.Identify the morula.
2.Identify the blastula,
3
11.
• Endometrium (lining of
Identify
the uterus)
the
structure
blastula
attaches to
in the
female.
12.
Identify
the
structure
that forms
after the
blastula.
• Gastrula
13.
• Endoderm
Identify
• Mesoderm
the three
• Ectoderm
layers that
make up
the
gastrula.
14.
Identify or
DRAW a
gastrula.
A
B
C
Look at the
prefix of each
word to help
you identify
each layer.
• Endoderm
• Mesoderm
• Ectoderm
fertilization
zygote
cleavage
morula
blastula
gastrula
http://www.youtube.com/watch?v=Lgb4wMsZwZA&feature=related
Do any of
the cells
that make
up these
structures
have a
function?
What are
these cells
called?
• Differentiation occurs
15. Identify
when the three germ
and describe
differentiation. layers start to DEVELOP
into DIFFERENT cells
and eventually different
STRUCTURES.
Ectoderm Mesoderm Endoderm
Nervous
Skeleton
system
Epidermis Muscles
of skin
Hair
Circulatory
system
Gonads
Digestive
tract
Respiratory
system
Liver,
pancreas
Bladder
Differentiation
Morula Blastula Gastrula
Zygote
Fertilization
Cleavage
https://www.youtube.com/watch?v=lXN_sDnd1ng
Let’s summarize…
1. What type of cell division occurs throughout the
formation of an embryo? Mitosis
Fertilization
2. Identify the process that produces the zygote.
3. Identify the process that occurs to the zygote. Cleavage
4. Identify the solid ball of cells. Morula
5. Identify the hollow ball of cells. Blastula
6. Which structure attaches to the endometrium? Blastula
7. Identify the structure that forms when one side of
the blastula indents. Gastrula
8. Identify the process that occurs once the gastrula
forms. Differentiation
Cells such as nerve cells and
muscle cells are known as
(1)gametes
(2)sex cells
(3)somatic cells
(4)specialized cells
Which statement is true about sexual
reproduction?
(1)It produces offspring with half the
number of chromosomes as the parent.
(2)It involves sex cells joining together.
(3)It produces offspring that are
genetically identical to the parents.
The result of meiosis are daughter cells
that have
(1) half the number of chromosomes
(2) a quarter of the number of
chromosomes
(3) double the number of chromosomes
(4) the same number of chromosomes
The number of chromosomes
found in human gametes is
(1) 46
(2) 92
(3) 23
The type of asexual reproduction in which
involves the production of single cells by
mitosis that are released into the
environment is called
1. regeneration
2. binary fission
3. sporulation
4. vegetative propagation
The type of asexual reproduction in which
one cell divides into to two cells that are
of equal size is called
1. regeneration
2. binary fission
3. sporulation
4. vegetative propagation
Asexual reproduction in plants is known
as
1. regeneration
2. vegetative propagation
3. binary fission
4. sporulation
http://www.brainpop.com/health/geneticsgro
wthanddevelopment/fetaldevelopment/
1. Identify the type of asexual reproduction
represented in the diagram. REGENERATION
2. Describe the offspring of this process.
OFFSPRING GENETICALLY IDENTICAL TO PARENT
3. Identify organisms that use this process.
STARFISH, LIZARDS, WORMS