Transcript Topic: Reproduction

Topic: Reproduction
Aim: Describe the structure of a flower and
how it uses sexual reproduction.
Do Now:
1. Take out the Seeds ISN.
2. Sit next to your 6 o’clock partner to work on
the do now.
HW: Ditto – Embryonic Development
1. Identify the type of development observed in the
diagram. External development
2. Identify the types of organisms that use this type of
development. Aquatic and terrestrial
3. Identify the source of nutrition for the embryo. Yolk
4. Identify what cushions and protects the embryo.
Amniotic fluid
1. Identify the structure that produces estrogen and
progesterone. B - ovary
2. Where does a zygote develop?
D - uterus
A - oviduct
4. Where does the placenta form? D - uterus
3. Where is the egg fertilized?
5. Identify the process when an egg is released from an ovary.
Ovulation
6. Identify the process that occurs in the ovaries.
Meiosis
Identify the process occurring in the diagram
below. Support your answer.
http://www.youtube.com/watch?v=VPHFzHRyZ1k
Topic: Reproduction
Aim: Describe the structure of a flower and
how it uses sexual reproduction.
Do Now: Take out your HW and the Seeds
ISN
HW: CL Sexual Reproduction due Monday<
March 9th
Reproduction Exam on Tuesday, March 10th
1. How do
nonflowering
plants
reproduce?
• Grow from spores instead
of seeds
• Brightly colored to attract
2.
insects to pick up pollen
Identify
from
the
flower
and
carry
the
it
to
the
next
flower
function of
(POLLINATION)
petals.
How are flowers pollinated?
• Some grasses have small,
3.
dull, off-white flowers.
Identify
an example • Use wind to blow pollen
of how
grains to other plants
pollination
occurs in
plants
without
petals.
• Sepals
4.
Identify
the
structures
that
protect
the flower
when it is
still a bud.
5.
• Leaves that form a ring
Describe
around petals
the
•
Usually
green
or
brown
appearance
of sepals.
6.
• Stamen
Identify
•
Anther
and
filament
the male
parts of a
flower and
the two
parts its
consists
of.
7. Identify
the male
reproductive
structure
that
produces
and contains
pollen.
• Anther
• Pollen: male gamete
How
many
sperm
nuclei
are
present
in a
pollen
grain?
8. Identify
the male
reproductive
structure
that holds
up the
anther.
• Filament
9. Identify • Pistil
the female • Stigma, style and ovary
part of the
flower and
the three
parts it
consists of.
10.
• Stigma
Identify the
female
reproductive
structure
that pollen
grains stick
to.
11.
• Style
Identify the
female
reproductive
structure
that holds
up the
stigma
12.
• Ovary
Identify the
female
reproductive
structure
that
contains the
ovules.
• Eggs
13.
Identify
what is
found in
the
ovules.
• When pollen sticks to the
14.
Describe
stigma.
what
pollination
is.
15.
Describe
what
happens
once
pollination
occurs.
• Pollen tubes form down the
style from pollen grains to
allow pollen to travel down
the style and into ovary
• Ovules become seeds
16.
Describe
• Ovary turns into fruit
the 2 things
that occur
once
fertilization
occurs.
• Nectaries
17.
Identify the
flower
structure
that
produces
nectar.
18. How do • Insects have to reach deep
down into flower to find
insects
drinking the nectar.
nectar help • Pick up pollen and carry it
in
to next flower.
pollination?
• Receptacle
19.
Identify the
structure
where parts
of the
flower are
attached.
Cross pollination or self pollination?
Topic: Reproduction
Aim: Describe the structure of a flower and
how it uses sexual reproduction.
Do Now: Take out the Seeds ISN and the
Embryonic Development HW
HW: Bring your textbooks to class tomorrow!!!
CL Sexual Reproduction due Monday< March
9th
Reproduction Exam on Tuesday, March 10th
1
Fertilization
3
2
Zygote
Cleavage
A
B
C
4
Blastula
5
Gastrula
stigmaH
style G
anther
petal
filament
ovary F
ovule E
1.
2.
3.
4.
5.
6.
7.
sepal
Identify the male reproductive structure and its parts.
Identify the female reproductive structure and its parts.
Where are gametes produced? By what process?
What happens during pollination?
Identify what assists in pollination.
How do the sperm nuclei get to the ovules?
What happens to the ovules and ovary once the eggs are
fertilized?
1. Identify
what is
found inside
the seed.
• Plant embryo
• Food supply – cotyledon
•
Surrounds
and
protects
the
2. Describe
embryo
the function
•
Keeps
the
contents
of
the
of the seed
seed
from
drying
out
coat.
•
Provides
nutrients
for
the
3. Describe
embryo
as
it
grows.
the function
of the
cotyledon.
4. Identify
what
dispersal in
line 3
refers to.
• Spreading
5. Identify
what
enables a
seed to last
for long
periods of
time.
• Embryo stops growing
while it is still small.
• When it starts to grow
again, it uses nutrients in
the cotyledon.
6. Describe
seed
germination.
• Early growth stage of plant
embryo
7. Identify
the 2
conditions
needed for
a seed to
germinate.
• Water
• Suitable temperature
Seed Structure
Embryo
http://www.youtube.com/watch?v=bwCpQflmQG4&feature=related
http://www.youtube.com/watch?v=KMQtLWpAdXI&feature=related
Let’s summarize…
1. Describe the male reproductive organ of
the flower.
2. Describe the female reproductive organ of
the flower.
3. Explain what occurs during pollination.
4. Explain what occurs after pollination.
5. Explain what happens to the flower once the
eggs are fertilized.
6. Describe the structure of a seed.
The part of the pistil which contains
the pollen tube is the
(1)stigma
(2)style
(3)ovary
(4)ovule
The transfer of pollen between the
anther and the stigma in any
flowering plant or plants is called
(1)fertilization
(2)pollination
(3)photosynthesis
(4)transpiration
The sex cells in a flowering plant
are located in the
(1) sepals and petals
(2) stigma and nectar
(3) fruit and seed
(4) stamens and pistil
In order to reach an ovule, a
___________ grows through
the style and into the ovary.
(1)sepal
(2) fruit
(3) pollen tube
(4) seed
The egg cell of a flowering plant
develops in the
(1) pollen grain
(2) ovule
(3) stigma
(4) fruit
The sperm of flowering plants is
contained in the
(1) ovule
(2) pollen grains
(3) style
(4) stigma
The entire female reproductive organ
in flowering plants is called the
(1) pistil
(2) stamen
(3) stigma
(4) sepals
The sticky top of the pistil is
called the
(1) style
(2)anther
(3)stigma
(4)filament
Which statement below is true?
(1) Nymphs after emerging from eggs
look like adult insects.
(2) Larva after emerging from eggs
look like adult insects.
(3) Nymphs will develop inside pupa
before emerging as adults.
At what stage of development is the
insect encased in a protective
cocoon?
(1)Larva
(2)Nymph
(3)Pupa
(4)Egg
At what stage of development do
insects appear work-like?
(1)Larva
(2)Nymph
(3)Pupa
(4)Egg