Practical no.2 REPRODUCTIVE PARTS OF AFLOWER.ppt
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The document describes the parts of a flower, including both the vegetative and reproductive structures. It explains that the vegetative parts are the petals, which attract pollinators, and the sepals, which protect the bud. The reproductive parts are the stamens, which produce pollen in structures called anthers, and the pistil, which consists of the stigma, style, and ovary. The ovary contains ovules, where fertilization occurs and seeds develop if pollination is successful. It provides an example of the floral structure of maize, describing its male and female inflorescences.
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REPRODUCTIVE PARTS OF A FLOWER FOR GRADE 5
The document describes the reproductive parts of a flower, including the stamens, which are the male part that produce pollen in structures called anthers. The stigma is the top of the female pistil that receives pollen. The pistil contains the style and ovary, where ovules are located and fertilization can produce seeds if pollen reaches the ovules. The functions of these various reproductive parts are outlined to explain how flowers reproduce.
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The document describes the structure and function of flower parts, including that flowers produce male and female gametes. Sepals protect the developing flower, petals attract insects for cross-pollination, the nectary produces nectar, the carpel contains ovules for female gamete production, and the stamen contains pollen grains with male gametes. Pollination is the transfer of pollen and can occur through insect-pollination, where insects carry pollen between flowers, or wind-pollination. Fertilization happens when pollen nuclei fuse with ovule nuclei.
DAY6REPRODUCTIVEPARTSOFAFLOWER.ppt
The document describes the reproductive parts of a flower, including the stamen, anther, filament, stigma, pistil, style, ovary, and ovule. The stamen is the male part of the flower and contains the anther, which produces pollen. The stigma is the female part that receives pollen. It is located at the end of the pistil. The ovary protects and contains the ovules, where fertilization occurs and seeds develop.
Biology Lesson 3.1
Flowers are the reproductive structures of angiosperm plants that contain male and female organs. They are found at the end of stems, called pedicels, and have four main parts: pistils, which are the female organs containing ovaries, styles and stigmas; stamens, which are the male organs containing filaments and pollen-producing anthers; sepals, which are green structures protecting the developing bud; and petals, which are colorful structures that attract pollinators. Flowers can be complete or incomplete, perfect or imperfect, depending on whether they contain all flower parts or are missing some parts. They can also be arranged as single flowers or in clusters called inflorescences.
partsoftheflower-160715111306.pdfhhhhhhhh
This document describes the main parts of a flower including the stamen, pistil, petals, sepals, and receptacle. It explains their functions in reproduction and pollination. Specifically, it states that the stamen produces pollen grains, the pistil contains the ovary and stigma, petals are often colorful, and the receptacle attaches other parts. It also discusses types of flowers and how plants are commonly pollinated by bees, birds, wind or animals. Finally, it outlines how flowers are useful to ecosystems by facilitating pollination, attracting wildlife, and allowing plant species to continue.
Parts of the flower
Parts of a Flower
Sepals
Petals
Receptacle
Pistil
Stamen
Stamen
The stamen (plural stamina or stamens) is the pollen-producing reproductive organ of a flower.
Filament- Supports the Anther
Anther- Produces Pollen Grains
Pistil
The ovule producing part of a flower.
The ovary often supports a long style, topped by a stigma. The mature ovary is a fruit, and the mature ovule is a seed. Stigma: The part of the pistil where pollen germinates.
Peduncle
The stalk of a flower.
Types of Flowers
Complete Flowers- have both male and female parts
Incomplete Flowers- have either male or female parts but not both.
Pollination
is the act of transferring pollen grains from the male anther of a flower to the female stigma. The goal of every living organism, including plants, is to create offspring for the next generation. One of the ways that plants can produce offspring is by making seeds.
How Are Plants Pollinated?
Bees
Birds
Wind
Humans
Animals
How Are Flowers Useful to Us?
Flowers are not just beautiful to look at,
but they also serve a vital role in our ecosystem.
Flowers help our ecosystem flourish and attract a plethora of life to the area and facilitate the expansion of our environment. If flowers are cut down or destroyed before pollination can occur, that particular species has a high chance of dying off in that area. In addition, local wildlife will also vanish in that area since they would have no food. Flowers help keep the ecosystem growing and provide new plant life, as well as help sustain local insects and birds.
References
https://www.google.com/search?q=the+warmth+of+the+sun&biw=1366&bih=624&source=lnms&tbm=isch&sa=X&ved=0ahUKEwijzIvum-vNAhVGE5QKHVPECrQQ_AUICCgD#tbm=isch&q=flower&imgdii=FzbkxijP3tcE6M%3A%3BFzbkxijP3tcE6M%3A%3B9HeLL-NVdsjrxM%3A&imgrc=FzbkxijP3tcE6M%3A
https://www.google.com/search?q=plants+need+to+grow&biw=1366&bih=624&source=lnms&tbm=isch&sa=X&sqi=2&ved=0ahUKEwiJtPjrnOvNAhXCj5QKHcPEAP0Q_AUIBigB#tbm=isch&q=parts+of+flower+for+kindergarten&imgrc=e6V8oQskJakoiM%3A
https://www.google.com/imgres?imgurl=http%3A%2F%2Fwww.biotik.org%2Flaos%2Fdefs%2FStamen_en.gif&imgrefurl=http%3A%2F%2Fwww.biotik.org%2Flaos%2Fdefs%2F354_en.html&docid=Ds4mwro4x7NUhM&tbnid=QKkshukLyPxM2M%3A&w=455&h=283&noj=1&ved=0ahUKEwiDpou4pOvNAhWGKJQKHR2ZD3kQMwg6KAcwBw&iact=mrc&uact=8&biw=1366&bih=624#h=283&imgdii=QKkshukLyPxM2M%3A%3BQKkshukLyPxM2M%3A%3Bsk-2e39y3k6kCM%3A&w=455
https://www.google.com/search?q=stamen&biw=1366&bih=624&noj=1&source=lnms&sa=X&ved=0ahUKEwiDpou4pOvNAhWGKJQKHR2ZD3kQ_AUIBygA&dpr=1
Plant Reproduction
Plants reproduce sexually through flowers, which contain male and female reproductive structures. The male structure, called the stamen, contains pollen within an anther. The female structure, called the pistil, contains ovules within the ovary and receives pollen on its stigma. Pollination occurs when pollen is transferred between the male anther and female stigma of different flowers. After fertilization, the ovary develops into a fruit containing seeds. Flowers have evolved various colors, scents and shapes to attract different pollinators like wind, insects and birds to transfer pollen between plants.
Reproductive parts of plants- J.Dael
Flowering: caimito, okra, avocado, gumamela, eggplant
Cone-Bearing: pine tree
Ferns: club moss
Mosses: liverwort
Recommended
REPRODUCTIVE PARTS OF A FLOWER FOR GRADE 5
The document describes the reproductive parts of a flower, including the stamens, which are the male part that produce pollen in structures called anthers. The stigma is the top of the female pistil that receives pollen. The pistil contains the style and ovary, where ovules are located and fertilization can produce seeds if pollen reaches the ovules. The functions of these various reproductive parts are outlined to explain how flowers reproduce.
Rep in plants 2
The document describes the structure and function of flower parts, including that flowers produce male and female gametes. Sepals protect the developing flower, petals attract insects for cross-pollination, the nectary produces nectar, the carpel contains ovules for female gamete production, and the stamen contains pollen grains with male gametes. Pollination is the transfer of pollen and can occur through insect-pollination, where insects carry pollen between flowers, or wind-pollination. Fertilization happens when pollen nuclei fuse with ovule nuclei.
DAY6REPRODUCTIVEPARTSOFAFLOWER.ppt
The document describes the reproductive parts of a flower, including the stamen, anther, filament, stigma, pistil, style, ovary, and ovule. The stamen is the male part of the flower and contains the anther, which produces pollen. The stigma is the female part that receives pollen. It is located at the end of the pistil. The ovary protects and contains the ovules, where fertilization occurs and seeds develop.
Biology Lesson 3.1
Flowers are the reproductive structures of angiosperm plants that contain male and female organs. They are found at the end of stems, called pedicels, and have four main parts: pistils, which are the female organs containing ovaries, styles and stigmas; stamens, which are the male organs containing filaments and pollen-producing anthers; sepals, which are green structures protecting the developing bud; and petals, which are colorful structures that attract pollinators. Flowers can be complete or incomplete, perfect or imperfect, depending on whether they contain all flower parts or are missing some parts. They can also be arranged as single flowers or in clusters called inflorescences.
partsoftheflower-160715111306.pdfhhhhhhhh
This document describes the main parts of a flower including the stamen, pistil, petals, sepals, and receptacle. It explains their functions in reproduction and pollination. Specifically, it states that the stamen produces pollen grains, the pistil contains the ovary and stigma, petals are often colorful, and the receptacle attaches other parts. It also discusses types of flowers and how plants are commonly pollinated by bees, birds, wind or animals. Finally, it outlines how flowers are useful to ecosystems by facilitating pollination, attracting wildlife, and allowing plant species to continue.
Parts of the flower
Parts of a Flower
Sepals
Petals
Receptacle
Pistil
Stamen
Stamen
The stamen (plural stamina or stamens) is the pollen-producing reproductive organ of a flower.
Filament- Supports the Anther
Anther- Produces Pollen Grains
Pistil
The ovule producing part of a flower.
The ovary often supports a long style, topped by a stigma. The mature ovary is a fruit, and the mature ovule is a seed. Stigma: The part of the pistil where pollen germinates.
Peduncle
The stalk of a flower.
Types of Flowers
Complete Flowers- have both male and female parts
Incomplete Flowers- have either male or female parts but not both.
Pollination
is the act of transferring pollen grains from the male anther of a flower to the female stigma. The goal of every living organism, including plants, is to create offspring for the next generation. One of the ways that plants can produce offspring is by making seeds.
How Are Plants Pollinated?
Bees
Birds
Wind
Humans
Animals
How Are Flowers Useful to Us?
Flowers are not just beautiful to look at,
but they also serve a vital role in our ecosystem.
Flowers help our ecosystem flourish and attract a plethora of life to the area and facilitate the expansion of our environment. If flowers are cut down or destroyed before pollination can occur, that particular species has a high chance of dying off in that area. In addition, local wildlife will also vanish in that area since they would have no food. Flowers help keep the ecosystem growing and provide new plant life, as well as help sustain local insects and birds.
References
https://www.google.com/search?q=the+warmth+of+the+sun&biw=1366&bih=624&source=lnms&tbm=isch&sa=X&ved=0ahUKEwijzIvum-vNAhVGE5QKHVPECrQQ_AUICCgD#tbm=isch&q=flower&imgdii=FzbkxijP3tcE6M%3A%3BFzbkxijP3tcE6M%3A%3B9HeLL-NVdsjrxM%3A&imgrc=FzbkxijP3tcE6M%3A
https://www.google.com/search?q=plants+need+to+grow&biw=1366&bih=624&source=lnms&tbm=isch&sa=X&sqi=2&ved=0ahUKEwiJtPjrnOvNAhXCj5QKHcPEAP0Q_AUIBigB#tbm=isch&q=parts+of+flower+for+kindergarten&imgrc=e6V8oQskJakoiM%3A
https://www.google.com/imgres?imgurl=http%3A%2F%2Fwww.biotik.org%2Flaos%2Fdefs%2FStamen_en.gif&imgrefurl=http%3A%2F%2Fwww.biotik.org%2Flaos%2Fdefs%2F354_en.html&docid=Ds4mwro4x7NUhM&tbnid=QKkshukLyPxM2M%3A&w=455&h=283&noj=1&ved=0ahUKEwiDpou4pOvNAhWGKJQKHR2ZD3kQMwg6KAcwBw&iact=mrc&uact=8&biw=1366&bih=624#h=283&imgdii=QKkshukLyPxM2M%3A%3BQKkshukLyPxM2M%3A%3Bsk-2e39y3k6kCM%3A&w=455
https://www.google.com/search?q=stamen&biw=1366&bih=624&noj=1&source=lnms&sa=X&ved=0ahUKEwiDpou4pOvNAhWGKJQKHR2ZD3kQ_AUIBygA&dpr=1
Plant Reproduction
Plants reproduce sexually through flowers, which contain male and female reproductive structures. The male structure, called the stamen, contains pollen within an anther. The female structure, called the pistil, contains ovules within the ovary and receives pollen on its stigma. Pollination occurs when pollen is transferred between the male anther and female stigma of different flowers. After fertilization, the ovary develops into a fruit containing seeds. Flowers have evolved various colors, scents and shapes to attract different pollinators like wind, insects and birds to transfer pollen between plants.
Reproductive parts of plants- J.Dael
Flowering: caimito, okra, avocado, gumamela, eggplant
Cone-Bearing: pine tree
Ferns: club moss
Mosses: liverwort
Lec8 plant flowers
Here are the key points about vegetative reproduction:
- It involves the propagation of plants from vegetative plant parts like stems, leaves, roots etc without formation of seeds or spores.
- New individuals are formed without fusion of gametes.
- Common methods include runners/stolons (strawberry), suckers (potato), bulbs/corms/tubers (onion, ginger), cuttings (money plant).
- The new individuals formed are clones that are genetically identical to the parent plant.
- It allows for rapid multiplication of plants without reliance on seeds or flowers.
- Examples of plants reproducing vegetatively are potato (tubers), ginger (rhiz
Botany session 4
The document discusses flowers and fertilization. It describes the basic structure of flowers and their function in sexual reproduction. It explains that flowers attract pollinators through traits like color, scent and nectar. The document also outlines the processes of pollination, fertilization and double fertilization, where the sperm cells fuse with the egg and polar nuclei to produce seeds.
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Angiosperms, also called flowering plants, have seeds that are enclosed within an ovary (usually a fruit), while gymnosperms have no flowers or fruits, and have unenclosed or “naked” seeds on the surface of scales or leaves. Gymnosperm seeds are often configured as cones.
Angiosperms and gymnosperms
There are two main types of seed plants - gymnosperms and angiosperms. Gymnosperms reproduce using cones instead of flowers and include cycads, ginkgos, conifers, and gnetophytes. Angiosperms are the largest group of plants and reproduce using flowers containing sepals, petals, stamens, and a pistil. Pollination occurs when pollen from the stamen sticks to the stigma of the pistil, and fertilization happens when the pollen joins with an ovule in the ovary. Seeds then develop inside the ovary and are dispersed in different ways depending on the plant.
Angiosperms and gymnosperms
There are two main types of seed plants - gymnosperms and angiosperms. Gymnosperms reproduce using cones instead of flowers and include cycads, ginkgos, conifers, and gnetophytes. Angiosperms are the largest group of plants and reproduce using flowers containing sepals, petals, stamens, and a pistil. Pollination occurs when pollen from the stamen sticks to the stigma on the pistil, and fertilization happens when the pollen joins with an ovule in the ovary. Seeds then develop inside the ovary and are dispersed in different ways depending on the plant.
Angiosperms and gymnosperms
There are two main types of seed plants - gymnosperms and angiosperms. Gymnosperms reproduce using cones instead of flowers and include cycads, ginkgos, conifers, and gnetophytes. Angiosperms are the largest group of plants and reproduce using flowers containing sepals, petals, stamens, and a pistil. Pollination occurs when pollen from the stamen sticks to the stigma on the pistil, and fertilization happens when the pollen joins with an ovule in the ovary. Seeds then develop inside the ovary and are dispersed in different ways depending on the plant.
Life cycle of flowering plants
This document summarizes the life cycle of flowering plants. It begins by defining flowering plants and noting examples. It then outlines the stages in a flowering plant's life cycle: flowering, pollination (self or cross), fertilization where male and female gametes fuse, fruit and seed development, dispersal of fruits and seeds, and seed germination where a new plant develops. Key parts of flowers and processes like pollen transfer, fertilization and seed development are described.
4 main parts of a flower and their functions
Here we have discussed the different parts of a flower that collectively constitutes the anatomy of the flower.
Angiospermpptx__2021_01_12_11_02_20.pptx
- The document is about angiosperms and provides information over 3 paragraphs.
- It defines angiosperms as flowering plants that produce seeds enclosed in fruits and have flowers, fruits, and seeds. They make up the majority of plant species.
- It describes the basic structures of angiosperms including their root systems of taproots and fibrous roots, and shoot systems of stems, leaves, flowers, and fruits.
- Key details are provided about the morphology and functions of roots, stems, leaves, and reproductive parts of flowers.
Flower.ppt
This document provides information about plant reproduction through flowers. It discusses that flowers are the reproductive structures of angiosperms and contain male and female structures. The male structures (stamens) produce pollen that contains sperm, while the female structures (carpels) contain ovules that house the egg. Pollination occurs when pollen is transferred between flowers, allowing the sperm to fertilize the egg through a process called double fertilization. This fertilization leads to the development of seeds within a fruit.
Plant Reproduction Notes
I made this slideshow for my honors 7th grade Life Science class. It's a work in progress. It's heavy on angiosperms, but needs more information about gymnosperms and seedless plants. 7th grade, anther, biology, cones, egg, fertilization, gymnosperm, life science, ovules, pistil, plant reproduction - angiosperms, pollen dispersal, pollen grain, pollen tube, pollination, science, stamen, stigma, style
Flowers ppt
Flowers first evolved around 140 million years ago during the Late Jurassic period. Flowering plants (angiosperms) are now the dominant form of plant life on Earth's land. They have been so successful because their flowers have adaptations that encourage effective pollination, including protective ovaries, floral structures that reward pollinators, and fast reproductive cycles. A complete flower possesses four whorls (sepals, petals, stamens, and pistil), while an incomplete flower lacks one or more of these whorls. Flowers attract pollinators through traits like coloration and nectar production in order to facilitate reproduction.
The Flower
A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants. The biological function of a flower is to effect reproduction, usually by providing a mechanism for the union of sperm with eggs.
In addition to facilitating the reproduction of flowering plants, flowers have long been admired and used by humans to bring beauty to their environment, and also as objects of romance, ritual, religion, medicine and as a source of food.
In this lesson you will learn about :
1) Flower - Definition & Functions
2) Floral Symmetry
3) Pedicellate & Sessile Flowers
4) Insertion of Floral Leaves on the Thalamus
5) Parts of a Flower
6) Some Important Terms related to Flowers
7) Floral Whorls - Calyx, Corolla, Androecium and Gynoecium
8) Placentation
9) Inflorescenece
I hope this document is helpful to you. Please share the document with your friends if you think this will benefit them. Get ready for the next lesson. Thanks.
TYPES OF FLOWERS, FRUITS,DICOT AND MONOCOT SEEDS
Flower is a reproductive structure that contains either male or female organs or both. A flower contains several parts including sepals, petals, stamens, and pistil. There are different types of flowers including bisexual, unisexual, and neutral flowers. Seeds come from fruits and there are two main types - monocot seeds with one cotyledon and dicot seeds with two cotyledons. Monocot seeds have an embryo with one cotyledon called a scutellum and endosperm as the storage tissue. Dicot seeds have an embryo containing a primary axis and two cotyledons which act as storage organs.
flower and fruit for 8th
The document defines and describes the key parts of flowers including the androecium, gynoecium, pedicel, receptacle, sepals, calyx, petals, corolla, stamens, anther, filament, stigma, style, ovary, ovule, and describes the processes of pollination, cross-pollination, self-pollination. It also defines the two types of fruits - fleshy fruits where the ovary wall becomes fleshy, and dry fruits where the ovary wall becomes dry at maturity.
flower and fruit
The document defines and describes the key parts of flowering plants. It explains that the androecium contains the stamens, which are the male reproductive organs consisting of a filament and anther. The gynoecium contains the carpels and makes up the female reproductive part. It then describes the pedicel, receptacle, sepals, calyx, petals, corolla, stamens, anther, filament, stigma, style, ovary, and ovule. The document concludes by explaining pollination, cross-pollination, self-pollination, and the two types of fruits - fleshy and dry.
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The document provides information about the life cycle and functions of flowering plants. It explains that flowers have brightly colored petals and scent to attract pollinators like bees. The main function of a flower is reproduction - the male stamens produce pollen, which is transferred by insects to the female stigma, where fertilization occurs inside the ovary. Seeds then develop and are dispersed, allowing new plants to grow and continue the cycle.
THE REPRODUCTIVE PARTS IN PLANTS.pptx
The document summarizes the reproductive parts of flowers and their functions. It describes the main parts of flowers as the receptacle, sepals, petals, stamen, and pistil. The stamen is the male part consisting of a filament and anther, which produce pollen grains. The pistil is the female part made up of a style, stigma, and ovary, where ovules are fertilized to produce seeds.
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Lec8 plant flowers
Here are the key points about vegetative reproduction:
- It involves the propagation of plants from vegetative plant parts like stems, leaves, roots etc without formation of seeds or spores.
- New individuals are formed without fusion of gametes.
- Common methods include runners/stolons (strawberry), suckers (potato), bulbs/corms/tubers (onion, ginger), cuttings (money plant).
- The new individuals formed are clones that are genetically identical to the parent plant.
- It allows for rapid multiplication of plants without reliance on seeds or flowers.
- Examples of plants reproducing vegetatively are potato (tubers), ginger (rhiz
Botany session 4
The document discusses flowers and fertilization. It describes the basic structure of flowers and their function in sexual reproduction. It explains that flowers attract pollinators through traits like color, scent and nectar. The document also outlines the processes of pollination, fertilization and double fertilization, where the sperm cells fuse with the egg and polar nuclei to produce seeds.
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This text consists of flower definition, structure, types, classification, functions, and some floral terminologies in plants breeding
Angiosperms and Gymnosperms.ppt
Angiosperms, also called flowering plants, have seeds that are enclosed within an ovary (usually a fruit), while gymnosperms have no flowers or fruits, and have unenclosed or “naked” seeds on the surface of scales or leaves. Gymnosperm seeds are often configured as cones.
Angiosperms and gymnosperms
There are two main types of seed plants - gymnosperms and angiosperms. Gymnosperms reproduce using cones instead of flowers and include cycads, ginkgos, conifers, and gnetophytes. Angiosperms are the largest group of plants and reproduce using flowers containing sepals, petals, stamens, and a pistil. Pollination occurs when pollen from the stamen sticks to the stigma of the pistil, and fertilization happens when the pollen joins with an ovule in the ovary. Seeds then develop inside the ovary and are dispersed in different ways depending on the plant.
Angiosperms and gymnosperms
There are two main types of seed plants - gymnosperms and angiosperms. Gymnosperms reproduce using cones instead of flowers and include cycads, ginkgos, conifers, and gnetophytes. Angiosperms are the largest group of plants and reproduce using flowers containing sepals, petals, stamens, and a pistil. Pollination occurs when pollen from the stamen sticks to the stigma on the pistil, and fertilization happens when the pollen joins with an ovule in the ovary. Seeds then develop inside the ovary and are dispersed in different ways depending on the plant.
Angiosperms and gymnosperms
There are two main types of seed plants - gymnosperms and angiosperms. Gymnosperms reproduce using cones instead of flowers and include cycads, ginkgos, conifers, and gnetophytes. Angiosperms are the largest group of plants and reproduce using flowers containing sepals, petals, stamens, and a pistil. Pollination occurs when pollen from the stamen sticks to the stigma on the pistil, and fertilization happens when the pollen joins with an ovule in the ovary. Seeds then develop inside the ovary and are dispersed in different ways depending on the plant.
Life cycle of flowering plants
This document summarizes the life cycle of flowering plants. It begins by defining flowering plants and noting examples. It then outlines the stages in a flowering plant's life cycle: flowering, pollination (self or cross), fertilization where male and female gametes fuse, fruit and seed development, dispersal of fruits and seeds, and seed germination where a new plant develops. Key parts of flowers and processes like pollen transfer, fertilization and seed development are described.
4 main parts of a flower and their functions
Here we have discussed the different parts of a flower that collectively constitutes the anatomy of the flower.
Angiospermpptx__2021_01_12_11_02_20.pptx
- The document is about angiosperms and provides information over 3 paragraphs.
- It defines angiosperms as flowering plants that produce seeds enclosed in fruits and have flowers, fruits, and seeds. They make up the majority of plant species.
- It describes the basic structures of angiosperms including their root systems of taproots and fibrous roots, and shoot systems of stems, leaves, flowers, and fruits.
- Key details are provided about the morphology and functions of roots, stems, leaves, and reproductive parts of flowers.
Flower.ppt
This document provides information about plant reproduction through flowers. It discusses that flowers are the reproductive structures of angiosperms and contain male and female structures. The male structures (stamens) produce pollen that contains sperm, while the female structures (carpels) contain ovules that house the egg. Pollination occurs when pollen is transferred between flowers, allowing the sperm to fertilize the egg through a process called double fertilization. This fertilization leads to the development of seeds within a fruit.
Plant Reproduction Notes
I made this slideshow for my honors 7th grade Life Science class. It's a work in progress. It's heavy on angiosperms, but needs more information about gymnosperms and seedless plants. 7th grade, anther, biology, cones, egg, fertilization, gymnosperm, life science, ovules, pistil, plant reproduction - angiosperms, pollen dispersal, pollen grain, pollen tube, pollination, science, stamen, stigma, style
Flowers ppt
Flowers first evolved around 140 million years ago during the Late Jurassic period. Flowering plants (angiosperms) are now the dominant form of plant life on Earth's land. They have been so successful because their flowers have adaptations that encourage effective pollination, including protective ovaries, floral structures that reward pollinators, and fast reproductive cycles. A complete flower possesses four whorls (sepals, petals, stamens, and pistil), while an incomplete flower lacks one or more of these whorls. Flowers attract pollinators through traits like coloration and nectar production in order to facilitate reproduction.
The Flower
A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants. The biological function of a flower is to effect reproduction, usually by providing a mechanism for the union of sperm with eggs.
In addition to facilitating the reproduction of flowering plants, flowers have long been admired and used by humans to bring beauty to their environment, and also as objects of romance, ritual, religion, medicine and as a source of food.
In this lesson you will learn about :
1) Flower - Definition & Functions
2) Floral Symmetry
3) Pedicellate & Sessile Flowers
4) Insertion of Floral Leaves on the Thalamus
5) Parts of a Flower
6) Some Important Terms related to Flowers
7) Floral Whorls - Calyx, Corolla, Androecium and Gynoecium
8) Placentation
9) Inflorescenece
I hope this document is helpful to you. Please share the document with your friends if you think this will benefit them. Get ready for the next lesson. Thanks.
TYPES OF FLOWERS, FRUITS,DICOT AND MONOCOT SEEDS
Flower is a reproductive structure that contains either male or female organs or both. A flower contains several parts including sepals, petals, stamens, and pistil. There are different types of flowers including bisexual, unisexual, and neutral flowers. Seeds come from fruits and there are two main types - monocot seeds with one cotyledon and dicot seeds with two cotyledons. Monocot seeds have an embryo with one cotyledon called a scutellum and endosperm as the storage tissue. Dicot seeds have an embryo containing a primary axis and two cotyledons which act as storage organs.
flower and fruit for 8th
The document defines and describes the key parts of flowers including the androecium, gynoecium, pedicel, receptacle, sepals, calyx, petals, corolla, stamens, anther, filament, stigma, style, ovary, ovule, and describes the processes of pollination, cross-pollination, self-pollination. It also defines the two types of fruits - fleshy fruits where the ovary wall becomes fleshy, and dry fruits where the ovary wall becomes dry at maturity.
flower and fruit
The document defines and describes the key parts of flowering plants. It explains that the androecium contains the stamens, which are the male reproductive organs consisting of a filament and anther. The gynoecium contains the carpels and makes up the female reproductive part. It then describes the pedicel, receptacle, sepals, calyx, petals, corolla, stamens, anther, filament, stigma, style, ovary, and ovule. The document concludes by explaining pollination, cross-pollination, self-pollination, and the two types of fruits - fleshy and dry.
Sexual Reproduction in Flowering Plants (Part I)
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Floweringplantsreproduction
The document provides information about the life cycle and functions of flowering plants. It explains that flowers have brightly colored petals and scent to attract pollinators like bees. The main function of a flower is reproduction - the male stamens produce pollen, which is transferred by insects to the female stigma, where fertilization occurs inside the ovary. Seeds then develop and are dispersed, allowing new plants to grow and continue the cycle.
THE REPRODUCTIVE PARTS IN PLANTS.pptx
The document summarizes the reproductive parts of flowers and their functions. It describes the main parts of flowers as the receptacle, sepals, petals, stamen, and pistil. The stamen is the male part consisting of a filament and anther, which produce pollen grains. The pistil is the female part made up of a style, stigma, and ovary, where ovules are fertilized to produce seeds.
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Practical no.2 REPRODUCTIVE PARTS OF AFLOWER.ppt
- 1. Practical 2: The Reproductive Parts of a Flower
- 2. Flower Objectives • Describe the functions of each part of the flower
- 3. Flowers Can either be: - Complete – consists of sepals, petals, stamens and pistil - Incomplete – lacks one or more of the structures. Therefore a complete flower consists of two different parts: - Vegetative part - Reproductive part
- 4. Parts of a flower
- 5. Vegetative parts of a flower • Petals: bright – coloured part that attracts bees, insects and birds. Petals help us to differentiate one flower from another. • Sepals: green coloured part beneath the petals to protect rising buds.
- 6. Reproductive Parts of a Flower: Stamens • The stamens are the male part of the flower. • The plant makes pollen in the part of the stamen called the anther. stamen anther
- 8. • Part of the stamen • Produces and holds pollen Anther
- 9. • Stalk that holds up the anther Filament
- 10. Pistil • The female part of the flower
- 11. Stigma • The stigma is the top of the female part of the flower. • Pollen from another flower collects on the stigma’s sticky surface. • Found at the end of the pistil
- 12. Style • The neck of the pistil
- 13. • Part of the pistil that contains the ovules The Ovary
- 14. The Ovary • The ovary protects the ovules. • Pollen travels to the ovules and fertilization takes place. • Now the ovules will develop into seeds. pollen ovule ovary
- 15. Ovule • The part of the flower in which the eggs are produced and seeds develop
- 16. E.g. Floral structure of Maize (Zea mays) A cross pollinated crop - Floral biology • It is monoecious plant bearing male flowers growing at the tip as tassel and female flowers at the axial of the leaf on the shoot. • The tassel is terminal with staminate flowers in several roots. • The pollens remain viable for 18 to 24 hours. • The female inflorescence is a spadex known as cob or ear.
- 18. Write the correct words in the boxes: stamen, stigma, petals, ovary, ovules, pollen, sepals, anther. 1. The male part of the flower 4. This is where pollen is made 5. Insects carry this from flower to flower 2. These attract insects 3. This is the female part of the flower, which receives the pollen 7. These become seeds after fertilization 8. This is where the seeds will grow 6. These protect the flower before it opens
- 19. Excellent!