Reproduction
In Flowering Plants
Which among the different parts of the plant is most important?
Reproduction
In Flowering Plants…
How do plants reproduce?
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Reproduction
Reproduction
In Flowering Plants
In Flowering Plants
How do plants reproduce?
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Sexual Reproduction
Plants reproduce sexually and asexually.
How do plants reproduce asexually?
Asexual reproduction produces plants that are
generically identical to their parent plant.
• Some plants produce seeds without
fertilisation.
• Asexual reproduction can take place by natural
or artificial means.
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Reproduction
Sexual Reproduction
In Flowering Plants
In Flowering Plants
Sexual Reproduction in Plants
4 Main Parts of a Flower
Male and female reproductive parts
• Fusion of gametes
• Offspring are genetically different form the
parents
• Reproductive organs are present
•
Petals
• Sepals
• Stamen
• Carpel
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Sexual Reproduction
Sexual Reproduction
In Flowering Plants
In Flowering Plants
4 Main Parts of a Flower
Stamen
Petals
• Colorful, often bright part of the flower
• Sepals
• Protects the flower before it opens
• Stamen
• Male part of the flower
• Carpel (Pistil)
• Female part of the flower
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Male part of the
flower
• Consists of the
following parts:
• Anther — Produces
and contains pollen
• Filament — Hair-like
stalk that supports
the anther.
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Sexual Reproduction
Sexual Reproduction
In Flowering Plants
In Flowering Plants
Carpel
Carpel
Female part of the
flower
• Consists of the
following parts:
• Stigma — Sticky,
receives pollen
grains
• Style — Long
stalk that
supports the
stigma.
Female part of the
flower
• Consists of the
following parts:
• Ovary — Has
seeds. Turns
into the fruit
• Ovule —
Becomes the
seeds
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Sexual Reproduction
Sexual Reproduction
In Flowering Plants
In Flowering Plants
Perfect Flower VS Imperfect Flower
Perfect Flower
• Flower that has both the male and female
parts.
• Imperfect Flower
• Flower that has either all male parts of all
female parts
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Complete Flower VS Incomplete Flower
Complete Flower
• A flower that has all the 4 main parts (Petals,
Sepals, Carpel and Stamen)
• Incomplete Flower
• A flower that is missing at least one of those
4 main parts
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Sexual Reproduction
Sexual Reproduction
In Flowering Plants
In Flowering Plants
Group Activity — Flower Dissection
Parts of a Flower Summary
Examine the parts of a gumamela flower
• Identify the main parts of the flower
• Dissect the flower to reveal its parts
• Tape the flower and its parts on the OSLO
paper and label each part
• Is a gumamela flower a complete and perfect
flower? Why or why not?
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Sexual Reproduction
Sexual Reproduction
In Flowering Plants
In Flowering Plants
To summarize…
Homework:
Answer Act. 8.1
• Additional HW:
• What is the scientific name of gumamela?
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