How do seeds form?
... The pollen grain has 2 nuclei. One fuses with the nucleus of the female cell, while the other fuses with 2 other cells in the ovule to form a food store. The ovule can now develop into a seed! ...
... The pollen grain has 2 nuclei. One fuses with the nucleus of the female cell, while the other fuses with 2 other cells in the ovule to form a food store. The ovule can now develop into a seed! ...
Kingdom Plantae
... • The sporophytes of lycophytes consist of true roots, stems and leaves. • Sporophylls are specialized leaves that bear sporangia and are organized into a structure called the strobilus (pl. strobili). • Some Selaginella are heterosporous; Lycopodium is homosporous. ...
... • The sporophytes of lycophytes consist of true roots, stems and leaves. • Sporophylls are specialized leaves that bear sporangia and are organized into a structure called the strobilus (pl. strobili). • Some Selaginella are heterosporous; Lycopodium is homosporous. ...
Kingdom Plantae
... Fertilization of gametes does not require water Allows seed plants to live almost anywhere Adaptations that allow repro w/o water include flowers or cones, pollination, and protection of embryos in seeds ...
... Fertilization of gametes does not require water Allows seed plants to live almost anywhere Adaptations that allow repro w/o water include flowers or cones, pollination, and protection of embryos in seeds ...
Lifecycle of Trees
... begins to develop woody characteristics. The stem may bend or develop branches that reach toward light. Leaves lean or tilt toward light. ...
... begins to develop woody characteristics. The stem may bend or develop branches that reach toward light. Leaves lean or tilt toward light. ...
Plant Diversity II
... Conifers are the largest division of gymnosperms Mostly evergreens e.g. pines, firs, spruces, larches, yews, cypresses etc. Include the tallest, largest and oldest living organisms Needle-shaped leaves adapted to dry conditions: Thick cuticle covers leaf Stomata in pits, reducing water loss Megaphy ...
... Conifers are the largest division of gymnosperms Mostly evergreens e.g. pines, firs, spruces, larches, yews, cypresses etc. Include the tallest, largest and oldest living organisms Needle-shaped leaves adapted to dry conditions: Thick cuticle covers leaf Stomata in pits, reducing water loss Megaphy ...
seed
... Plants that produce “Naked” seeds (exposed on the scales of cones) can reproduce without free-standing water, via pollination – ADAPTATIONS – Seeds (embryo & food supply) – seeds allow plants to disperse to new places ...
... Plants that produce “Naked” seeds (exposed on the scales of cones) can reproduce without free-standing water, via pollination – ADAPTATIONS – Seeds (embryo & food supply) – seeds allow plants to disperse to new places ...
Featured Plant of the Month January 2012 Italian Cypress.docx
... very narrow columnar shape and is very dark green. The Italian Cypress is a gymnosperm (Greek, gymnos=naked, sperm=seed) which means that the seeds are not produced in enclosed fruits. Pollen that is usually wind-borne in the gymnosperms delivers the sperm nuclei to the ovules and seeds are produced ...
... very narrow columnar shape and is very dark green. The Italian Cypress is a gymnosperm (Greek, gymnos=naked, sperm=seed) which means that the seeds are not produced in enclosed fruits. Pollen that is usually wind-borne in the gymnosperms delivers the sperm nuclei to the ovules and seeds are produced ...
View/Open
... T. mucronatum: The Montezuma Cypress occurs from the Lower Rio Grande Valley south to the highlands of southern Mexico, and differs from the other two species in being substantially evergreen. t is a riparian tree, occurring on the banks of streams and rivers, not in swamps like the Bald and Pond ...
... T. mucronatum: The Montezuma Cypress occurs from the Lower Rio Grande Valley south to the highlands of southern Mexico, and differs from the other two species in being substantially evergreen. t is a riparian tree, occurring on the banks of streams and rivers, not in swamps like the Bald and Pond ...
Aesculus glabra
... central Texas [1]. Grown in woodland areas as well as ornamental specimens, yet a poor street tree. Distinguishing Characteristics: Non-Resinous buds. Large, showy, greenishyellow fowers in spring. Polygamomonoecious: flowers either hermaphroditic or male. Produce very large seeds in a prickly capsu ...
... central Texas [1]. Grown in woodland areas as well as ornamental specimens, yet a poor street tree. Distinguishing Characteristics: Non-Resinous buds. Large, showy, greenishyellow fowers in spring. Polygamomonoecious: flowers either hermaphroditic or male. Produce very large seeds in a prickly capsu ...
2.3 Sexual Reproduction in Plants
... • Were the first of the two groups of seed plants to appear in the fossil record. • Almost all conifers are evergreens with needle-shaped leaves and are among the tallest, largest, and oldest living organisms. • The cone is the distinguishing feature of conifers; in the pine, two different types of ...
... • Were the first of the two groups of seed plants to appear in the fossil record. • Almost all conifers are evergreens with needle-shaped leaves and are among the tallest, largest, and oldest living organisms. • The cone is the distinguishing feature of conifers; in the pine, two different types of ...
What makes a Plant a Plant?
... Then a shoot pushes up. The leaves of an embryo cannot make food, the nutrients come from a structure called cotyledon, until the plant grow and makes its own food. When the first leaves emerge from the ground, they turn green as chlorophyll for photosynthesis is produced. Rapid growth begins ...
... Then a shoot pushes up. The leaves of an embryo cannot make food, the nutrients come from a structure called cotyledon, until the plant grow and makes its own food. When the first leaves emerge from the ground, they turn green as chlorophyll for photosynthesis is produced. Rapid growth begins ...
Embryo develops into the sporophyte Major groups of plants
... Immediate ancestors are green algae, a type of Protista, that lived in fresh water. They share: ...
... Immediate ancestors are green algae, a type of Protista, that lived in fresh water. They share: ...
Reproduction of Seed Plants
... a) contains 1 or more ovules where female gametophytes are produced 3) style a) narrow stalk 4) stigma a) at the top of style b) sticky part where pollen grains land ...
... a) contains 1 or more ovules where female gametophytes are produced 3) style a) narrow stalk 4) stigma a) at the top of style b) sticky part where pollen grains land ...
Gymnosperms
... Conifers, members of the phylum Coniferophyta, are probably the gymnosperms that are most familiar to you. Conifers include trees such as pines, firs, spruces, cedars, and the coastal redwood trees in California, which are the tallest living vascular plants. Conifers have their reproductive structur ...
... Conifers, members of the phylum Coniferophyta, are probably the gymnosperms that are most familiar to you. Conifers include trees such as pines, firs, spruces, cedars, and the coastal redwood trees in California, which are the tallest living vascular plants. Conifers have their reproductive structur ...
Lecture #17 Date
... by meiosis into 4-1N microspores; mitosis produces a generative cell (sperm) and a tube cell (pollen tube)= a pollen grain Female gametophyte: megasporocyte (in ovule) divides by meiosis to 4 cells, only 1 survives to a 1-N megaspore; 3 mitotic divisions forms the embryo sac; includes: 1 egg cell (f ...
... by meiosis into 4-1N microspores; mitosis produces a generative cell (sperm) and a tube cell (pollen tube)= a pollen grain Female gametophyte: megasporocyte (in ovule) divides by meiosis to 4 cells, only 1 survives to a 1-N megaspore; 3 mitotic divisions forms the embryo sac; includes: 1 egg cell (f ...
Vascular Seed Plants (Spermatophytes)
... • Observe the prepared slide of the pollen grain. Are you looking at haploid cells or diploid cells? What part of the moss life cycle corresponds to the pollen of gymnosperms? • Observe the prepared slide of the pine seed. Note the protective seed coat. Are the seed tissues haploid or diploid? How d ...
... • Observe the prepared slide of the pollen grain. Are you looking at haploid cells or diploid cells? What part of the moss life cycle corresponds to the pollen of gymnosperms? • Observe the prepared slide of the pine seed. Note the protective seed coat. Are the seed tissues haploid or diploid? How d ...
Janua - Botanical Society of Lower Merion
... the park as the path curves near the stream. These shrubs and trees have shiny dark green leaves. Leaf size and shape varies by cultivar. ...
... the park as the path curves near the stream. These shrubs and trees have shiny dark green leaves. Leaf size and shape varies by cultivar. ...
Seed Reproduction.pptx
... • In the cones, cells divide by _________ to produce the gametophyte plant structures (ovule, pollen grains). ...
... • In the cones, cells divide by _________ to produce the gametophyte plant structures (ovule, pollen grains). ...
Division: Cycadophyta
... Conifers, which include pines, spruces, hemlocks, and firs, are woody trees or shrubs. Most conifers have leaves (megaphylls) that are modified into needles or scales. Biogeography – The conifers are found worldwide. Unique Characteristics - The Pine Tree contains both male and female cones. The pol ...
... Conifers, which include pines, spruces, hemlocks, and firs, are woody trees or shrubs. Most conifers have leaves (megaphylls) that are modified into needles or scales. Biogeography – The conifers are found worldwide. Unique Characteristics - The Pine Tree contains both male and female cones. The pol ...
Division: Cycadophyta - Mt. SAC Faculty Contact Directory
... Conifers, which include pines, spruces, hemlocks, and firs, are woody trees or shrubs. Most conifers have leaves (megaphylls) that are modified into needles or scales. Biogeography – The conifers are found worldwide. Unique Characteristics - The Pine Tree contains both male and female cones. The pol ...
... Conifers, which include pines, spruces, hemlocks, and firs, are woody trees or shrubs. Most conifers have leaves (megaphylls) that are modified into needles or scales. Biogeography – The conifers are found worldwide. Unique Characteristics - The Pine Tree contains both male and female cones. The pol ...
Review for the Kingdom Plantae Test 1a. Order the parts of
... Xylem transports H2O to from the roots to the leaves Phloem transports sugar from the leaves to the rest of the plant ...
... Xylem transports H2O to from the roots to the leaves Phloem transports sugar from the leaves to the rest of the plant ...
Pine seed - Cloudfront.net
... Pollen grain burrows into ovule Cell undergoes meiosis to make 4 haploid megaspores; one survives and grows into the multicellular gametophyte 2 or 3 archegonia, each with an egg, develop inside More than a year after pollination, eggs are ready to be fertilized – pollen tube grows through One zygot ...
... Pollen grain burrows into ovule Cell undergoes meiosis to make 4 haploid megaspores; one survives and grows into the multicellular gametophyte 2 or 3 archegonia, each with an egg, develop inside More than a year after pollination, eggs are ready to be fertilized – pollen tube grows through One zygot ...
Pinophyta
The conifers, division Pinophyta, also known as division Coniferophyta or Coniferae, are one of 12 extant division-level taxa within the Kingdom Plantae (Viridiplantae) and 10 within the extant land plants. Pinophytes are gymnosperms, cone-bearing seed plants with vascular tissue. All extant conifers are woody plants with secondary growth, the great majority being trees with just a few being shrubs. Typical examples of conifers include cedars, Douglas-firs, cypresses, firs, junipers, kauri, larches, pines, hemlocks, redwoods, spruces, and yews. The division contains approximately eight families, 68 genera, and 630 living species.Although the total number of species is relatively small, conifers are of immense ecological importance. They are the dominant plants over huge areas of land, most notably the boreal forests of the northern hemisphere, but also in similar cool climates in mountains further south. Boreal conifers have many wintertime adaptations. The narrow conical shape of northern conifers, and their downward-drooping limbs, help them shed snow. Many of them seasonally alter their biochemistry to make them more resistant to freezing, called ""hardening"". While tropical rainforests have more biodiversity and turnover, the immense conifer forests of the world represent the largest terrestrial carbon sink, i.e. where carbon from atmospheric CO2 is bound as organic compounds.They are also of great economic value, primarily for timber and paper production; the wood of conifers is known as softwood.Conifer is a Latin word, a compound of conus (cone) and ferre (to bear), meaning ""the one that bears (a) cone(s)"".