Science 7 Quarter 2 Week 5

1. 2nd
QUARTER MODULE 5 –
Life Goes On:
Sexual Reproduction Vs Asexual
Reproduction
FEBRUARY 8-12, 2021

3. CCBHS PRAYER
► Our heavenly Father, we thank Thee for all
the blessings Thou has given us each day. We
ask Thee for Thy continuous guidance and
protection. Shower us with love and kindness
to everyone. Grant us always peace in our
hearts and enrich us with knowledge, so that
we will become a good example to others. In
Jesus name we pray, Amen.

4. Learning Competency:
Differentiate asexual from sexual
reproduction in terms of:
1. number of individuals involved;
2. similarities of offspring to parents
( S7LT llg 7 )

5. EXPECTATIONS
At the end of this module, you are expected to:
1. describe the vegetative reproduction;
2. describe the different types of asexual reproduction;
3. describe the sexual reproduction using illustrations and
identify their parts and functions; and
4. differentiate asexual from sexual reproduction using
Venn diagram

6. PRE-TEST
Directions: Read the questions carefully. Choose the letter of the correct
answer.
____ 1. Which biological process is involved in producing
offspring that are genetically like the parent organism?
A. Excretion C. Precipitation
B. Respiration D. Reproduction
____ 2. Which type of asexual reproduction in which a new
plant grows from a fragment of the parent plant?
A. Cloning C. Fragmentation
B. Fission D. Vegetative Reproduction
D
C

7. ____ 3. Which is a method of vegetative
reproduction?
A. Binary Fission C. Budding
B. Cutting D. Spore formation
____ 4. Which of the following is a female part of a
complete flower?
A. Anther B. Filament C. Ovule D. Style
B
D

8. ____ 5. Which is NOT considered as an advantage of
asexual reproduction?
A. Asexual reproduction is faster than sexual reproduction.
B. Asexual reproduction is more time and energy efficient.
C. Asexual reproduction does not lead to genetic variation.
D. Asexual reproduction can increase rapidly when the
conditions are favorable.
C

9. LOOKING BACK
Directions: Arrange the letters in each word to identify the term being
described in each number.
__________ 1. The control center of the cell. Contains
genetic information.
__________ 2. It stores dissolved food and
minerals.
__________ 3. The protein factory of
the cell.
__________ 4. Known as the powerhouse of the
cell.
__________ 5. The site of photosynthesis
CLONUE
S
TOMICHORIDONN
RIBOSOME
CLOHPRSATOL
LVCOUEA
NUCLEU
S
VACUOLE
RIBOSOME
MITOCHONDRION
CHLOROPLAS

10. PLANT CELL ANIMAL CELL
ORGANELLES
GOLGI BODY
CYTOPLASM
CELL MEMBRANE
MITOCHONDRION
NUCLEUS
ENDOPLASMIC
RETICULUM
VACUOLE
LYSOSOME
CHLOROPLAST
CELL WALL CENTRIOLES

11. BRIEF INTRODUCTION
REPRODUCE
• Make a new life
• Sustain the species so that it does not become
extinct

12. REPRODUCTION
is a biological process in which organ
give rise to offspring.
SEXUAL
REPRODUCTION
ASEXUAL
REPRODUCTION
Involves two parents and
produces offspring that are
genetically unique.
Involves one parents and
produces offspring that are
genetically identical to each
other and to the parents.
Involves the union of two
gametes
EXAMPLES:
Vegetative reproduction,
fragmentation, budding, binary
fission, spore formation

13. TYPES OF ASEXUAL REPRODUCTION
VEGETATIVE REPRODUCTION – Reproduction through
vegetative parts.
Natural vegetative propagation happens when plants grow and
develop naturally without human intervention. An important
ability that is key to enabling natural vegetative propagation in
plants is the ability to develop adventitious roots.
Vegetative plant structures that arise from plant stems include
rhizomes, runners, bulbs, tubers, and corms. Tubers can also
stretch from roots. Plantlets emerge from plant leaves.

14. TYPES OF ASEXUAL REPRODUCTION
VEGETATIVE REPRODUCTION – Reproduction through
vegetative parts.
Natural vegetative propagation

15. Types of Artificial Vegetative Reproduction
1. Cutting: A part of a plant, typically a stem or leaf, is cut
off and planted. Adventitious roots develop from the
cuttings and a new plant form.

16. Types of Artificial Vegetative Reproduction
2. Grafting: In grafting, a desired cutting or scion is attached to
the stem of another plant that remains rooted in the ground. The
tissue systems of the cutting become grafted into or integrated
with the tissue systems of the base plant over time.

17. TYPES OF ASEXUAL REPRODUCTION
BINARY FISSION - It shows how full-grown parental organism
divides into two daughter cells. Single- celled organisms, like
bacteria and some protozoan are generally produced by this
type of asexual reproduction.

18. TYPES OF ASEXUAL REPRODUCTION
FRAGMENTATION- A type of asexual reproduction that shows
how parent’s body breaks up into several pieces or fragments.
The fragments develop into new organisms. This type of asexual
reproduction is the common method in plant and animal
kingdom.

19. TYPES OF ASEXUAL REPRODUCTION
BUDDING- This type of asexual reproduction shows how buds
grow into new individuals. The buds may separate from their
parent or remain attach to form extensive colonies. Hydra is best
example of this kind of asexual reproduction.

20. TYPES OF ASEXUAL REPRODUCTION
SPORE FORMATION- A type of asexual reproduction that shows
how spores can germinate into new individuals without
fertilization.

21. ASEXUAL REPRODUCTION

22. SEXUAL REPRODUCTION

23. PARTS OF A FLOWER
1. Stigma
2. Style
3. Ovary
4. Ovule
5. Pistil
6. Anther
7. Filament
8. Stamen
9. Petal
10. Receptacle
11. Sepal

24. SEXUAL REPRODUCTION
FLOWER – The purpose of the flower is for sexual reproduction
Sepal - Typically, green
and leaf-like. It protects
the interior flower while it
emerges.
Ovary - It produces and
contains unfertilized
seeds.
Petal - Often brightly
colored and exist to
attract pollinators..

25. SEXUAL REPRODUCTION
FLOWER – The purpose of the flower is for sexual reproduction
Stigma - It is often sticky
in texture. Its job is to
capture pollen.
Filament - The tin tubular
part of the stamen that
extends and supports the
pollen sac at the top..

26. PARTS OF A FLOWER
1. Stigma
2. Style
3. Ovary
4. Ovule
5. Pistil
6. Anther
7. Filament
8. Stamen
9. Petal
10. Receptacle
11. Sepal

27. SEXUAL REPRODUCTION
FLOWER – The purpose of the flower is for sexual reproduction

28. SEXUAL REPRODUCTION and ASEXUAL REPRODUCTION
1.One parent
2. Very little chance of genetic variation
3. Genetic variation in offspring
4. Cells divide by fission, budding, or fragmentation
5. Forms of reproduction
6. Results in fertilization
7. Produces offspring
8. Involves plants, fungi and animals
9. No formation of gametes
10. Two parents

29. VENN DIAGRAM
SEXUA
L
ASEXUA
L
BOTH 1

30. SEXUAL REPRODUCTION and ASEXUAL REPRODUCTION
1.One parent
2. Very little chance of genetic variation
3. Genetic variation in offspring
4. Cells divide by fission, budding, or fragmentation
5. Forms of reproduction
6. Results in fertilization
7. Produces offspring
8. Involves plants, fungi and animals
9. No formation of gametes
10. Two parents

31. VENN DIAGRAM
SEXUA
L
ASEXUA
L
BOTH 1
2
3

32. SEXUAL REPRODUCTION and ASEXUAL REPRODUCTION
1.One parent
2. Very little chance of genetic variation
3. Genetic variation in offspring
4. Cells divide by fission, budding, or fragmentation
5. Forms of reproduction
6. Results in fertilization
7. Produces offspring
8. Involves plants, fungi and animals
9. No formation of gametes
10. Two parents

33. VENN DIAGRAM
SEXUA
L
ASEXUA
L
BOTH 1
2
3
4

34. SEXUAL REPRODUCTION and ASEXUAL REPRODUCTION
1.One parent
2. Very little chance of genetic variation
3. Genetic variation in offspring
4. Cells divide by fission, budding, or fragmentation
5. Forms of reproduction
6. Results in fertilization
7. Produces offspring
8. Involves plants, fungi and animals
9. No formation of gametes
10. Two parents

35. VENN DIAGRAM
SEXUA
L
ASEXUA
L
BOTH 1
2
3
4
5

36. SEXUAL REPRODUCTION and ASEXUAL REPRODUCTION
1.One parent
2. Very little chance of genetic variation
3. Genetic variation in offspring
4. Cells divide by fission, budding, or fragmentation
5. Forms of reproduction
6. Results in fertilization
7. Produces offspring
8. Involves plants, fungi and animals
9. No formation of gametes
10. Two parents

37. VENN DIAGRAM
SEXUA
L
ASEXUA
L
BOTH 1
2
3
4
5
6

38. SEXUAL REPRODUCTION and ASEXUAL REPRODUCTION
1.One parent
2. Very little chance of genetic variation
3. Genetic variation in offspring
4. Cells divide by fission, budding, or fragmentation
5. Forms of reproduction
6. Results in fertilization
7. Produces offspring
8. Involves plants, fungi and animals
9. No formation of gametes
10. Two parents

39. VENN DIAGRAM
SEXUA
L
ASEXUA
L
BOTH 1
2
3
4
5
6
7

40. SEXUAL REPRODUCTION and ASEXUAL REPRODUCTION
1.One parent
2. Very little chance of genetic variation
3. Genetic variation in offspring
4. Cells divide by fission, budding, or fragmentation
5. Forms of reproduction
6. Results in fertilization
7. Produces offspring
8. Involves plants, fungi and animals
9. No formation of gametes
10. Two parents

41. VENN DIAGRAM
SEXUA
L
ASEXUA
L
BOTH 1
2
3
4
5
6
7
8

42. SEXUAL REPRODUCTION and ASEXUAL REPRODUCTION
1.One parent
2. Very little chance of genetic variation
3. Genetic variation in offspring
4. Cells divide by fission, budding, or fragmentation
5. Forms of reproduction
6. Results in fertilization
7. Produces offspring
8. Involves plants, fungi and animals
9. No formation of gametes
10. Two parents

43. VENN DIAGRAM
SEXUA
L
ASEXUA
L
BOTH 1
2
3
4
5
6
7
8 9

44. SEXUAL REPRODUCTION and ASEXUAL REPRODUCTION
1.One parent
2. Very little chance of genetic variation
3. Genetic variation in offspring
4. Cells divide by fission, budding, or fragmentation
5. Forms of reproduction
6. Results in fertilization
7. Produces offspring
8. Involves plants, fungi and animals
9. No formation of gametes
10. Two parents

45. VENN DIAGRAM
SEXUA
L
ASEXUA
L
BOTH 1
2
3
4
5
6
7
8 9
10

46. Thank you!