1. .

3. Unit 1: Living things reproduction.
INDEX

4. Unit 1: Living things reproduction.
INDEX

5. Unit 1: Living things reproduction.
Writing activity.

6. 1. Newwords.
Find , at least twenty new words
and translate it into Spanish . Do
not forget to copy it in your
notebook.

7. 1. New words.
-To germinate- germinar.
-Bud – brote, capullo
--spores- esporas.
--progenitors- an ancestors by birth / padre o madre.
--descendents- opposite by ancestors.
-Offspring- a child or animal in relation to its parents.
-Zygote- cigoto/ a type of cell resulting from the union of an ovum
and a spermatozoon.
--gamete- gameto- reproductive cell, a cell that unites with another
such cell for a new organism.
--ovum- unfertilzed female. (óvulo).
--fertilize- to make the cell capable of development by writing it with
the male sex cell.
-- male- masculino
- female- femenino
--flower (pistil- pistilo, stamen- estambre

8. 1.- Reproduction.
Reproduction is one of the
three vital functions of living
things. With this function we
produce new living things
similar to ourselves.

9. The organisms that
reproduce are called
progenitors and the
organisms that result are
called descendants or
offspring.

10. 2.- Types of Reproduction
Reproduction can be asexual or sexual.
2.1.- Asexual Reproduction.
* It involves only one organism.
Descendants develop directly
from the body of the progenitors.
* The descendants are identical
to the progenitor.

11. CASES
* in unicellular organisms the
cell divides in two new cells.

12. * in some simple
invertebrates, the
descendant forms on the
body of the progenitor, like a
bud.

13. • Many plants
grow new plants
from a root or a
fragment of the
stem.
• Other produce
cells called
spores, that
produce new
descendants.

14. 1. http://lgfl.skoool.co.uk/search.a
spx
2. http://www.kidsbiology.com/biol
ogy_basics/characteristics_life/
characteristics_of_life_livining_
things_5.php
3. http://www.primaryresources.co
.uk/science/powerpoint/flower_
pol.swf
LINKS

15. 2.2.- SEXUAL REPRODUCTION

16. Sexual Reproduction involves
two different organisms, one
produces female reproductive
cells an the other male
reproductive cells.
It has three phases:
*Theformation of
reproductivecells.
*Fertilization.
*Development ofthe
zygote.

17. -The formation of reproductive
cells.
The reproductive cells, called
gametes are formed inside the
progenitor´s reproductive organs.

18. Fertilization: It is the union of a
male and female gamete.
A single cell called zygote is
formed.

19. -Development of the zygote:
The descendents develop form
the zygote.

20. *The descendent´s characteristics
are a mixture of the two
progenitors.
NEXT TASK
ORAL EXPRESSÍON
Discuss questions on page
9 and then answer them
orally.

21. 3.- SEXUAL REPRODUCTION IN
ANIMALS

22. In most animals, there are male
individuals with male reproductive
organs and female individuals with
female reproductive organs.
3.1 ANIMAL REPRODUCTIVE
ORGANS.

23. In some animals each
individual is hermaphrodite:
they have both types of
reproductive organs.

24. 3.2.- PHASES OF SEXUAL
REPRODUCTION IN ANIMALS.
oIt has three phases.
DO YOU REMEMBER THEM?
* Production of gametes
* Fertilization
* Development of the
zygote and embryo.

25.  Production of gametes:
The female reproductive
organs, called ovaries
produce gametes called
ovules.
The male reproductive
organs, called testicles
produce gametes called
sperm.

26.  Fertilization
There are two types:
External Fertilization: the
union of the ovule and the
sperm occurs outside the
female reproductive organs.
Internal fertilization: it occurs
inside the female
reproductive organs.

27. Development of the zygote
and embryo.
The zygote formed by
fertilization forms an
embryo.
It can complete its
development in two ways:

28. OVIPAROUS DEVELOPMENT:
inside an egg.
The embryo feeds on nutritious
substances from the egg. It breathes
through the shell. When development
is complete, the descendent hatches.
The female
lay
eggs
The
descendent
hatches.

29. VIVIPAROUS DEVELOPMENT:
inside the female reproductive
system.
The embryo takes food and oxygen
from the mother´s body. When
development is complet the
mother gives birth.
The descendent
develops inside
the reproductive
system of the
mother.
The mother
gives birth
to the
descendent.

30. Interesting videos
Asexual reproduction.
Sexual reproduction.

31. 4.- Sexual Reproduction
in flowering plants
What we are going to learn
about today is:
4.1.-About the plant reproductive
organ: the flower.
4.2.-What the phases are.

32. A Flowering Plant
 It is important for us to learn the parts of a
flowering plant…do you know any already?
 Let’s make a list…

33. Flower Parts

35. What do all the parts do?
 THE COROLLA: All these leaves
around the stamen, called PETALS
attract insects by being colourful
and scented.
 THE CALYX: It is the lower part of
the pistil, and protects it by small
leaves called SEPALS.

36. A Flower also has
MALE and FEMALE parts!
 THE PISTIL is the female
part. It is shaped like a
bottle.
Has three parts
• The stigma which is sticky
and collects pollen.
• The style which holds up
the stigma
• The ovary which contains
the ovules.
 The STAMENS are
the male part. Pollen
grains are formed
here.
 Has two parts.
• The Anther which
produces the pollen.
• The Filament which
holds the anther and
allows it to move.

37. Anther A small leaf that protects the flower before it
blooms
Filament They contain pollen
Ovary Tiny grains that contain sperm cells
Ovules The male part of the flower
Petal The part of the pistil between the stigma and the
ovary
Pistil They grow from a pollen grain to an ovule
Pollen The female part of the flower
Pollen tube They contain the egg cells and develop into
seeds
Sepal A part of the plant that attracts insects
Stamens A stalk that supports the anther
Stigma The sticky top of the pistil
Style The part of the pistil that contains the ovules
WRITE LETTERS TO MAKE MATCH THEM

38. NOW IT IS YOUR TURN
 4.1 The plant reproductive organ: the flower.
Write all the parts ofthe flower and make
a drawing.

39. 4.2.- PHASES OF
SEXUAL
REPRODUCTION IN
PLANTS.

40. 1.-
It is the journey of
the grains of pollen
from the stamen to
the pistil.

42. There are two types:
 SELF
POLLINATION
 HOW DO YOU
THINK IT
HAPPENS?

43. CROSS-POLLINATION

44. Bees are really important for pollination,
why?
How does the pollen stick onto the bee?

45. 2.- Fertilization
1.-When a grain of pollen
reaches the pistil it
introduces a fine tube
into the pistil.
2.- The male gametes
pass along this tube
to the ovules.
3.- The union of the
gametes or fertilization
produces a zygote, which
forms the embryo.

46. 3.- Formation of the fruit and
the seed.
1.-The flower loses the stamen and corolla.
2.-The pistil develops.
3.-The fruit and the seeds form

47. 4.- The Germination of the seeds.
1.-The buried fruit decomposes.
2.-The seed germinates.
The roots appear
3.- A stem and small leaves
start to appear.
4.-A new plant forms.

48. A new plant forms.