Introduction to the Plant Reproduction.ppt

Here you will able to learn about plant and how reproduction take place in it

1. Chapter 7 –Plant Reproduction

2. •Plants come in a variety of shapes, sizes, and
colors.
•ALL REPRODUCE
•____________ or ____________

3. Plant Organs
•Flowering plants make up the largest groupof
plants on Earth.
•Has 4 main organs:
–1) Roots
–2) Stems
–3) Leaves
–4) Flowers

4. •1) Roots–hold (anchor) plant in the
soil, absorb water and nutrients.
•2) Stems–support part of plant that
is above ground, water and nutrients
move through stem to various parts of
plant.
•3) Leaves–take in carbon dioxide and
release oxygen, capture energy.
•4) Flower–contains the reproductive
parts

5. Check List
•1) What are two modes of reproduction that
plants use?
•2) Which one requires fertilization?
•3) Female reproductive organs produce
__________, while male reproductive organs
produce __________.
•4) Which reproduction creates genetically
identical offspring?
•5) List the 4 main organs of a plant.
•6) In 3 sentences tell me which organ you feel like
is the most important out of the 4 organs of a
plant and back up with facts.

6. Section 2 –Seedless Reproduction
•Nonvascular Seedless–produced by spores
and are nonvascular
–Ex: moss
•Vascular Seedless–produced by spores but
are vascular
–Ex: Ferns

7. Review
•Nonvascular:
–Non-complex
–Small
–Seedless
•Vascular:
–Complex
–Larger
–Seeds (usually)
–Vascular Tissue

8. Section 3 –Seed Reproduction
•Recall, that flowering plants made up the
largestgroup of plants on Earth.
•Flowering plants reproduce by making seeds.
•Seeds will eventually grow into a new plant.

9. •Seeds are formed through a process called –
sexual reproduction
•Some flowers have male reproductive parts.
•Some flowers have female reproductive parts.
•There are also, other flowers have both male
and female parts.

10. Male Reproductive Parts
•Stamens–the male
reproductive pare of a
flower.
•Pollen–is a powder
that contains male
reproductive cells that
is produced by stamen.

11. Female Reproductive Parts
•Pistil–contains the female
reproductive parts of a
flower.
•Ovary–part of the flower
in which seeds develop,
located at the bottom of
the pistil in a hollow
structure.

12. Pollination
•Pollination –when pollen is
transferred from the stamens by
wind and animals to the top of
the pistil.
•Pollinators–animals that
transfer pollen
–Ex: bees, butterflies, insects, &
hummingbirds

13. Steps of Pollination
•1) Pollinator visits a flower
•2) pollen rubs off the male part of flower onto
the animal’s body
•3) pollen falls off onto the female part of that
flower or another flower.
•4)once transferred, pollen travels down into the
ovary, where fertilizes the egg—fertilization
occurs.
•5) Each fertilized egg in a flowering plant can
develop into a seed ovary into a fruit fruit
contains seed that will grow into new plant

14. Anatomy of a Seed
•Embryo–a tiny new plant
contained in each seed.
•Cotyledon–parts where the stored
food is located
•3 things each seed has:
–Embryo
–Cotyledon (stored food)
–Seed coat

16. Types of Pollination
•Self Pollination–pollen is
carried from stamen to
pistil of SAMEflower
•Cross Pollination–pollen is
carried to from stamen to
pistil of a DIFFERENT
flower

17. Dispersal Mechanisms
•3 Types of Dispersal:
–1)Self Dispersal –when ovary splits
or divides releasing seeds
–2)Wind Dispersal –dispersal via
wind
•Helicopters, dandelions, etc.
–3)Animal Dispersal–dispersal via
animal
•Animal feces, attaching to animals, etc.

18. Germination
•Once a seed is dispersed, if it lands in soil it
may germinate.
•Germination–is the sprouting of a new plant
from a seed (seed developing into a plant).

19. Steps of Germination
•1) First, seed absorbs so much water that it
swells and bursts its seed coat.
•2) Stored food inside provides energy for the
roots, stem, and leaves to start growing.
•3) After plant emerges from soil, it can capture
sunlight and perform photosynthesis.

20. Chapter 7 –Plant Reproduction

21. Chapter 7 –Plant Reproduction
•Plants can reproduce in 2 different ways:
____________ & _______________
•Plants have 4 main organs:
__________ , ___________ , ___________ ,
_____________

22. Plant Organs
•1) Roots -
_____________________________
•2) Stem -
_____________________________
•3) Leaves -
____________________________
•4) Flower -
____________________________

23. How Flowers Reproduce
•All flowers reproduce by making a
_______________.
•This _______________ will eventually grow
into a new species.
•A seed is the end product of a what type of
reproduction _______________________.

24. Male Reproductive Parts
•Stamen–
__________________
__________________
•Pollen–
__________________
__________________
__________________

25. Female Reproductive Parts
•Pistil–
______________________
______________________
•Ovary–
______________________
______________________
______________________
______________________

26. Pollination
•Pollination -
______________________________
______________________________
______________
•Pollinators -
______________________________
______________________________
______________

27. Check List
•1) What are two modes of reproduction that
plants use?
•2) Which one requires fertilization?
•3) Female reproductive organs produce
__________, while male reproductive organs
produce __________.
•4) Which reproduction creates genetically
identical offspring?
•5) List the 4 main organs of a plant.
•6) In 3 sentences tell me which organ you feel like
is the most important out of the 4 organs of a
plant and back up with facts.

28. Check List
•1) What type of reproduction in plants requires
fertilization?
•2) Where does fertilization occur in a plant?
•3) What is the male reproductive part of a flower?
•4) What is the powdery substance that contains male
reproductive cells called?
•5) The end product of sexual reproduction in plants is a
_____________. Which will eventually grow into a new
organism.
•6) What is it called when pollen travels from the
stamen to the top of the pistil?
•7)Draw out a flower and label: Pistil, Pollen, Stamen,
Ovary, Eggs.
•8) List 3 types of Pollinators.

29. Section 3
•Pollination
–Pollinators
–Stamen, pollen, pistil
•Fertilization
–Sex Cells (Gametes)
–Ovary
–Seed
–Fruit
•Germination
–Seed, soil, water, sunlight

30. Anatomy of Seed
•Embryo–
____________________________
•Cotyledon–
____________________________
_________________________
•3 things each seed has:
–Embryo
–Cotyledon (stored food)
–Seed coat

32. Dispersal of Seeds
•Seeds must find their way to the __________.
•A seed needs 3 things to grow.
–____________, ______________, ____________
•Animals and windcan help in dispersing
_____________.

33. Dispersal Mechanisms
•3 Types of Dispersal:
–1)Self Dispersal –
____________________________
–2)Wind Dispersal –
_____________________________
•Helicopters, dandelions, etc.
–3)Animal Dispersal–
____________________________
•Animal feces, attaching to animals, etc.

34. Germination
•Germination-
_____________________________________
_____________________________________

35. Steps of germination:
•1) Seed absorbs so much _________, until
seed coat bursts
•2)__________ provides food for the seed to
grow.
•3)Grows above ground and can go through a
process of __________________ .

36. Check List
•1) Draw out a seed and label these 3 parts: Cotyledon, Embryo,
Seed Coat
•2)The __________ is the tiny new plant that is located inside of the
seed.
•3) The _____________ is the stored food inside the seed.
•4) The protective coat on the outside of the seed is called the
___________.
•5) What are the 3 major steps in germination?
•6) Once a seed is produced after fertilization, what are 3 things
needed for it to grow?
•7) Dispersal is how a seed finds/gets to a place to grow, how many
ways of dispersal can there be?
•8) If a seed is eaten by an animal, and digested through the
digestive system, what type of dispersal has occurred?
•9) Give an example of an plant that has self dispersed seeds, wind
dispersed seeds, and animal dispersed seeds.
•10) _______________ is the process in which a seed sprouts into a
new plant.