General
Biology
General Biology
Chemistry
2 1/2
Science, Technology, Engineering, and Mathematics
Plant Reproduction
and Development
General Biology
Chemistry
2 1/2
Science, Technology, Engineering, and Mathematics
Learning Competency
At the end of the lesson, you should be able to do the following:
Compare and contrast reproduction and
developmental processes in plants and animals
(STEM_BIO11/12 -IVa-h-1).
3
Learning Objectives
At the end of the lesson, you should be able to do the following:
● Describe the life cycle of plants.
● Discuss the processes involved in plant
reproduction.
● Describe the stages of plant development.
4
Review of Plant Characteristics
Multicellular
organisms
Cellulosic
cell wall
Photosynthetic
capacity
Life cycle with
alternation of
generations
Plastids in
cytoplasm
5
Review of Major Plant Groups
Hornworts
Non-Vascular
Plants
Land
Plants
lignified vascular
tissues absent
Vascular
Plants
lignified vascular
tissues present
Liverworts
Mosses
Pteridophytes
}
spore-bearing nonvascular plants
spore-bearing
vascular plants
Gymnosperms
Spermatophytes
seed-bearing
vascular plants
cone-bearing plants
Angiosperms
flowering plants6
Review of Major Plant Groups
Bryophytes (Spore-bearing non-vascular plants)
Hornworts
Liverworts
Mosses
7
Review of Major Plant Groups
Pteridophytes (Spore-bearing vascular plants)
Ferns
Horsetails
Lycophytes
8
Review of Major Plant Groups
Spermatophytes (Seed-bearing vascular plants)
Gymnosperms
Angiosperms
(Monocot)
Angiosperms
(Dicot)
9
Floral Anatomy
10
Floral Anatomy
The pistil
consists of
the female
structures in
flowers (i.e.,
stigma, style,
ovary)
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Floral Anatomy
12
Floral Anatomy
The stigma is
a structure
where the
pollen grains
must land
during
pollination.
13
Floral Anatomy
14
Floral Anatomy
Style is the
stalk of the
stigma that
leads to the
ovary. Within
it is the
pollen tube.
15
Floral Anatomy
16
Floral Anatomy
Ovary is the
female
structure in
flowers that
house the
female
gametes.
17
Floral Anatomy
18
Floral Anatomy
Ovules are
small
structures
within the
ovary. Each
of them
contains an
egg nucleus.
19
Floral Anatomy
20
Floral Anatomy
Stamen
refers to the
male portion
of the flower.
It consists of
anthers and
filaments.
21
Floral Anatomy
22
Floral Anatomy
Anther is the
male
structure
that
produces and
stores the
pollen grains.
23
Floral Anatomy
24
Floral Anatomy
Filament is
the staminal
structure
that serves
as the stalk
of the anther.
25
Floral Anatomy
26
Floral Anatomy
Petals are
the colorful
leaf-life
structures in
flowers that
primarily
attract
pollinators.
27
Floral Anatomy
28
Floral Anatomy
Sepals are
green leaflike
structures
that protect
the
structures in
a flower bud.
29
Floral Anatomy
30
Floral Anatomy
Receptacle is
the
thickened
portion
below the
ovary where
floral
structures
grow.
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Floral Anatomy
32
Floral Anatomy
Pedicel is the
stalk of the
flower which
provides
support to all
floral parts.
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