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Chapter 31 Plant Reproduction
Chapter 31 Plant Reproduction

...  Carpel is the vessel-shaped structure with an expanded lower chamber (ovary), slender column (style) and upper surface (stigma) for pollen landing.  In ovary eggs develop, fertilization occurs and seeds mature. ...
Directed Reading A
Directed Reading A

... Section: Reproduction of Flowering Plants ______ 1. The largest and most diverse group of plants is a. prairie grasses. b. trees. c. flowering plants. d. shrubs. FERTILIZATION Match the labels to the parts of the drawing. Write the letters in the spaces provided. Some labels may be used more than on ...
Figure 38.2 Review of an idealized flower
Figure 38.2 Review of an idealized flower

... Figure 38.5 Pollen grains have tough, ornate, and distinctive walls ...
part 4: reproduction of flowering plants
part 4: reproduction of flowering plants

...                    which  two  distinct  fertilization  events  take  place                          between  the  male  and  female  gametophyte.       Seed  Formation   1. After  fertilization  occurs,  the  fl ...
Reproduction in Flowering Plants
Reproduction in Flowering Plants

... • Stigma: sticky landing site for pollen grains • Style: tube that leads down to ovary • Ovary: contains ovules that develop into seeds ...
Ch 24 Reproduction in Plants
Ch 24 Reproduction in Plants

... 1. Development of the female gametophyte- Female gametes develop in the ovule w/in ovary a. Polar nuclei – 2. Development of the male gametophyte - Male gametes develop in the anther. Pollination occurs when a pollen grain fertilizes an egg (methods: wind, water, animal…) 3. Pollination – In anthoph ...
Flowering Plants
Flowering Plants

... wind, insects, bats, birds and mammals to transfer pollen from the male (stamen) part of the flower to the female (stigma) part of the flower A flower is pollinated when a pollen grain lands on its stigma Pollen grains germinate on the stigma, growing down the style to reach an ovule. The sperm cell ...
Agrostemin
Agrostemin

... a) biotic and b) abiotic For example: It is due to extremely high temperatures and low relative air humidity. or. on the other side. low temperatures and high air humidity that pollen quickly loses its germination ability and seeds become sticky and die; even scientific farming methods. such as prun ...
Pollen and Spore Examination
Pollen and Spore Examination

... Pollen and spore information can be used to determine the following: Was the body moved?  Where did the crime take place?  What season did the crime take place?  Did the crime take place in the day or night? ...
Angiosperm Reproduction Student Notes File
Angiosperm Reproduction Student Notes File

... Megaspores divide by Mitosis making seven cells with eight nuclei ...
Basic Plant Structure
Basic Plant Structure

... Pollen grows a tube down through the style Meiosis occurs in the ovary to produce ovules (eggs) ...
Chapter 5 Section 3:
Chapter 5 Section 3:

... 6. Define Stamen – The male reproductive structure inside of the leaves 7. Define Pistil – The female reproductive structure 8. Define Pollinators – Animals or insects that ensure pollination occurs; they are attracted by their colors, shape, or scent 9. What is pollination? Pollen falls from anther ...
Chapter 38
Chapter 38

... carpellate flowers on 1 plant) •dioecious: staminate and carpellate flowers on separate plants ...
All in a Flower - Trimble County Schools
All in a Flower - Trimble County Schools

... • Ovule: The egg cell of the plant – becomes the seed when fertilized. • Pollen tube: Transfers pollen from stigma to ovule. • Pistil: Female part of flower, composed of three parts – Stigma: Collects pollen ...
Sexual vs. Asexual Reproduction
Sexual vs. Asexual Reproduction

... Light & smooth pollen that can be blown in the wind ...
Ch - ReadingtonScience
Ch - ReadingtonScience

... provides support for the plant, holds up leaves so they are exposed to the sun 12. a seed leaf where food can be stored Sec. 2 Gymnosperms Review and Reinforce 1. needlelike 2. conifer 3. cones 4. pollen 5. ovules or egg cells 6. Answers may vary. Sample: First, pollen falls from a male cone onto a ...
Plant Diversity II
Plant Diversity II

... Microspore develop into pollen grains, the male gametophyte covered by sporopollenin Carried by wind or animals  Pollination when pollen reaches ovule part of plant ...
Angiosperms
Angiosperms

... o Ex. bees remember the color, shape and odor of a flower it finds food on very clearly • the bee will continue to look for those flowers • on its way to the food (pollen) the bee might pollinate the flower with pollen from the last flower it visited this ensures the survival of the plant o Ex. flow ...
Chapter 30 Plant Diversity II: The Evolution of Seed Plants seed
Chapter 30 Plant Diversity II: The Evolution of Seed Plants seed

... ovule: consists of nucellus and egg-containing gametophytes gametophyte develop here and are nourished by nucellus gametophyte develops into a sporophyte embryo if fertilized by a sperm cell sporophyte-containing ovule develops into a seed pollen - vehicle for sperm cells - microspores develop into ...
PPT
PPT

... Why have reduced gametophytes ...
Parts of Flowers Test Review 2014 Answer Key
Parts of Flowers Test Review 2014 Answer Key

... 10) The _____ is the female reproductive organ of the flower. It is made of the stigma, style and ovary. ...
Slide 1
Slide 1

... This honeybee is harvesting pollen The long, thin beak and tongue of this and Nectar (a sugary solution secreted rufous hummingbird enable the animal by flower glands) from a Scottish to probe flowers that secrete nectar broom flower. The flower has a tripping deep within floral tubes. Before the Me ...
SEXUAL PROPAGATION Introduction Plant propagation is the
SEXUAL PROPAGATION Introduction Plant propagation is the

... pollen grains. Each stamen consists of a slender stalk called the filament. On top of the filament is the anther, which contains the pollen grains. 4. In sexual reproduction in flowering plants (angiosperms), a male gamete, commonly known as the pollen grain fertilizes the female gamete, known as th ...
Document
Document

... The zygote grows into an embryo and the ovule becomes a seed, containing the embryo and a food store. A part of the flower forms a fruit. This is used for seed dispersal, which stops the new plants competing with the parent plants for water, nutrients, light and space. ● Some fruits are eaten by ani ...
8B Plants and their Reproduction
8B Plants and their Reproduction

... The zygote grows into an embryo and the ovule becomes a seed, containing the embryo and a food store. A part of the flower forms a fruit. This is used for seed dispersal, which stops the new plants competing with the parent plants for water, nutrients, light and space. ● Some fruits are eaten by ani ...
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Pollen



Pollen is a fine to coarse powder containing the microgametophytes of seed plants, which produce the male gametes (sperm cells). Pollen grains have a hard coat made of sporopollenin that protects the gametophytes during the process of their movement from the stamens to the pistil of flowering plants or from the male cone to the female cone of coniferous plants. If pollen lands on a compatible pistil or female cone, it germinates, producing a pollen tube that transfers the sperm to the ovule containing the female gametophyte. Individual pollen grains are small enough to require magnification to see detail. The study of pollen is called palynology and is highly useful in paleoecology, paleontology, archaeology, and forensics.Pollen in plants is used for transferring haploid male genetic material from the anther of a single flower to the stigma of another in cross-pollination. In a case of self-pollination, this process takes place from the anther of a flower to the stigma of the same flower.
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