Project EASE
What this
module is about
In the study on
the growth and development of plants, you need to be familiar with the parts of
plants and their functions. There are three lessons prepared for you in this
module:
Lesson 1 – The Vegetative Parts of
Plants
Lesson 2 – The Reproductive Parts
of Plants
Lesson 3 – Seed Germination
What you are
expected to learn
After going
through this module, you are expected to:
1.
Differentiate between the vegetative and reproductive parts of a plant;
2. Identify the
vegetative and reproductive parts of plants;
3. Describe how
plants are structurally designed to perform the different life
processes; and,
4. Explain the
requirement of plants for growth and development.
How to learn
from this module
1. Read
carefully the instructions given.
2. Answer the
pre-test first.
3. If you are
told to go out and visit a garden, do not hesitate to do so. You may be asked
to go to a place nearby. It may be a backyard, school ground or any vacant lot
where plants grow.
4. Fill up the
designated boxes for any drawing/labels required.
5. Compare the
drawings and diagrams in this module with actual specimens.
Monocotyledons and Dicotyledons
Monocots and Dicots are
two types of plants that develop from the Phylum Angiosperm (Plants with protected
seed). They differ in…
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MONOCOTS
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DICOTS
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Their leaves are sessile.
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Their leaves have a petiole.
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The blade is large and narrow.
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The blade oval-like form and broad.
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Their leaves have a parallel venation.
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Their leaves have netted venation.
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Their flower has a number of petals of multiples of
3 (3,6,9,…)
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Their flower has a number of petals of multiples of
4 of 5 (4,5,8,10,…)
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They have fibrous root.
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They have taproot or adventitious root.
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The Vegetative Parts of the Plant
Plants have organs, and they have different functions. Vegetative organs of a plant are: Roots, stem, and
leaves, and could be used for asexual reproduction, that is why they are not
responsible for the reproduction, but yes for the life cycle, growing process,
and maintenance of the plant.
Roots
Roots are necessary for
the plant, because they hold the plant underground and absorb water and
nutrients from the soil for the plant.
The root tip, or primary root, is the first
one that develops from the plant.
Compare seedlings or young plants with the diagrams upwards and see if
they are monocots or dicots…
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Common name
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Taproot
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Fibrous
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Adventitious
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Lirio
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X
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Trebol
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X
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Paragüita
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X
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Answer the following questions:
- Differentiate
the three types of root systems.
Taproot: 1main root, many thick lateral roots.
Fibrous: Many long and thin lateral roots.
Adventitious: Roots that grow from the stem or leaves.
- What
is the advantage of a taproot over the other types of root systems?
Taproots are thicker and
can get deeper in the soil, and also it is more organized.
- Is
a carrot a vegetable or a root? Why do you say so? What about the radish?
Sweet potato?
Carrots, radishes and
camotes have characteristics of both: roots and vegetables, because they grow
underground, even though they don´t have lateral roots; but the plant upwards
doesn´t have a stem; so, in my opinion is a combination of both.
Activity 1.3
LEAF VENATION
1.
How many
plants in your garden have netted venation?
2.
Parallel
venation?
3.
What group
of plants there are in your school? Monocots, dicots, both?
There were 18 with
netted venation, 12 with parallel and 1 fern.
So there are more Dicots
than Monocots:
