what is life like for a typical plant?
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What is life like for a typical plant?. Edward Tsui, Au Yueng Hon, William Yuen, Ivan Ho. Do plant have babies?. NO! Breed next generation by two process Fertilization and Pollination. Introduction. Flower: Obtained both male cell and female cell - PowerPoint PPT PresentationTRANSCRIPT
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What is life like for a typical plant?Edward Tsui, Au Yueng Hon, William Yuen, Ivan Ho
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Do plant have babies?NO! Breed next generation by two process
Fertilization and Pollination
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IntroductionFlower:• Obtained both male cell and female cell • Located in Stamen and Carpel respectivelyPollination:• Usually take place before fertilization• Process of pollen transfer from an anther to a
stigma• Only works when both of the plant is the same
species
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IntroductionFertilization:• Usually take place after pollination• Process of male gamete fuse with
female gamete• The process of producing seed
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Pollination - Beginning Sending out pollen
• Involved stamen, male part, of flower
• Anther: – Male part of flower– Create pollen– Pollen grain ready
to be carry away on them
– Reproduce purpose
Anther
FilamentStamen
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Pollination - Process Insect- pollinated flowers, e.g. Okra, Celery Pollen spread by insect Good insect helper : Bee, Butterfly, Rousettus
• Pollen is stick on to the insect while they collect nectar
• Nectar grew deep in the flower to allow pollen to be stick
• Carry pollen to another flower
• Pollen enter other flower while bee collect nectar from other flower
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Pollination - Process • Wind- pollinated flowers, e.g. Dandelion• Pollen spread by wind• Special feature: Anther usually stick out to
facilitated the process• Kind of wind-
pollinated plant
• Wind bring away the pollen
• Carry pollen away to another plant
• Pollen landed on the plant while the wind blow pass it
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Different kind of pollination
Self-pollination: • Pollen grains are
transferred to the stigma of same flower or plant
: Way of Pollen transferred
Cross-pollination: • Pollen grains are
transferred to the stigma of a different plant
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Fertilization– ResultPollen enter new flower Involved female part, carpel Stigma:
Sticky Receive pollen
Style: Transport pollen to the ovary Pollen started to grow, carrying
male gameteOvary and ovules:
Fuse with pollen, female gamete
Act similar with human
Stigma
Style
OVARY AND OVULES
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Fertilization- ResultAfter fertilization,Plant usually die quickly afterwards
Ovule developed seed of its species
• Ovary developed into fruit
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The seed developed will grow again after the plant die and the species of flower was continued.The cycle of pollination and fertilization then repeat.
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ConclusionDo plant have babies?No!Reproduce themselves in other way
Pollination and FertilizationFusing the male and female gamete together to create seed for reproduction
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Do Plants Breathe?Edward Tsui
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Do plants breathe? No. Instead they absorb air.
Do not have a bloodstream or lung
In a passive way instead of an active process
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The Process (At Day time) Plants breathe in gas from the air. Most
importantly Carbon Dioxide and Oxygen
Releases excessive Oxygen from Photosynthesis
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The Process (At Night time) Plants actually breathe in Oxygen (and
Carbon Dioxide) and breathes out Carbon Dioxide
Oxygen were used breaking down that sugar to get energy for growth and combining other elements, minerals, and chemicals.
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How? Absorbs air through the openings on the
underside and upper side of leaves, called Stomata (or air-holes)
Gas moves in to the plant
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Why? Plants needs Carbon Dioxide/Oxygen
gas to complete photosynthesis
Photosynthesis is to keep the plant alive
Produces glucose and water
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