Botanical Basics
... female (girl) parts. A commonly yellow dust, called pollen, comes from the male part of the flower. This part of the flower is also known as the anther. The pollen must land on the female’s flower part, which is also known as the stigma, before a seed can grow. This process of uniting the pollen and ...
... female (girl) parts. A commonly yellow dust, called pollen, comes from the male part of the flower. This part of the flower is also known as the anther. The pollen must land on the female’s flower part, which is also known as the stigma, before a seed can grow. This process of uniting the pollen and ...
PPT #2
... Pollen attaches to the stigma of the pistil (female) and travels down the pollen tube to the ovules. Fertilization occurs when the male (pollen) and female cell (ovule) nuclei join. ...
... Pollen attaches to the stigma of the pistil (female) and travels down the pollen tube to the ovules. Fertilization occurs when the male (pollen) and female cell (ovule) nuclei join. ...
FLOWERS - Utah State University
... years ago (Upper Jurassic). Oldest flower fossil is 125 million years old. The dominant forms of plant life were gymnosperms, cycads, and ferns. ...
... years ago (Upper Jurassic). Oldest flower fossil is 125 million years old. The dominant forms of plant life were gymnosperms, cycads, and ferns. ...
Kingdom Plantae
... gymnosperms ﻣﻌﺮاة اﻟﺒﺬور. The term gymnosperms (literally, “nakedseeds”) refers to seeds produced in unprotected megaspores near the surface of the reproductive structure. Fertilization and seed development is lengthy, requiring one to three years. ...
... gymnosperms ﻣﻌﺮاة اﻟﺒﺬور. The term gymnosperms (literally, “nakedseeds”) refers to seeds produced in unprotected megaspores near the surface of the reproductive structure. Fertilization and seed development is lengthy, requiring one to three years. ...
Terms - HULK SCIENCE
... An ovule becomes a seed after fertilization After fertilization the ovary ripens into a fruit The process where a seed is transformed into a plant The entire reproductive part of an angiosperm Organisms like bees that spread pollen (Male) A long hair-like structure that holds the anther Plants that ...
... An ovule becomes a seed after fertilization After fertilization the ovary ripens into a fruit The process where a seed is transformed into a plant The entire reproductive part of an angiosperm Organisms like bees that spread pollen (Male) A long hair-like structure that holds the anther Plants that ...
Practice exam questions from previous years…
... E) Mosses Which of the following major groups of land plants has free-living gametophytes and dependent sporophytes? a) Angiosperms b) Seed plants c) Conifers d) Ferns e) Mosses Which one of the following has a life cycle in which both the sporophyte and gametophyte generations are freeliving, indep ...
... E) Mosses Which of the following major groups of land plants has free-living gametophytes and dependent sporophytes? a) Angiosperms b) Seed plants c) Conifers d) Ferns e) Mosses Which one of the following has a life cycle in which both the sporophyte and gametophyte generations are freeliving, indep ...
Vascular tissue
... S: located inside of petals F: male reproductive part Anther—top part of stamen, produces pollen Filament— “stalk” that ...
... S: located inside of petals F: male reproductive part Anther—top part of stamen, produces pollen Filament— “stalk” that ...
A Process to Use Food
... longest-lasting seed was frozen for over 10,000 years before it sprouted and even flowered. ...
... longest-lasting seed was frozen for over 10,000 years before it sprouted and even flowered. ...
basic horticulture – notes
... to fertilize egg o RECOGNIZES pollen SHAPE o Or CHEMICALLY INCOMPATIBLE Generally it must be SAME SPECIES but a different plant to CROSS Example: Kale will not self pollinate SPATIAL SEPARATION of anthers and stigma STAGGERED TIMING – of pollen release and stigma RECEPTABILITY ...
... to fertilize egg o RECOGNIZES pollen SHAPE o Or CHEMICALLY INCOMPATIBLE Generally it must be SAME SPECIES but a different plant to CROSS Example: Kale will not self pollinate SPATIAL SEPARATION of anthers and stigma STAGGERED TIMING – of pollen release and stigma RECEPTABILITY ...
Lecture 20 The word gymnosperm means “naked seed” the seeds
... In gymnosperms the sporophyte is dominant, the gametophyte is not free living so we say the gametophyte is dependent. Two major evolutionary advances that appear in the gymnosperms are pollen and seeds. Know that the following are gymnosperms: Conifers, Cycads, Gingkos, and Gnetophytes and all are T ...
... In gymnosperms the sporophyte is dominant, the gametophyte is not free living so we say the gametophyte is dependent. Two major evolutionary advances that appear in the gymnosperms are pollen and seeds. Know that the following are gymnosperms: Conifers, Cycads, Gingkos, and Gnetophytes and all are T ...
Notes - Seed Bearing – Gymnosperms and Angiosperms
... _______ forms the outer protective covering for trees called bark. The plant also has ______ __________. These are specialised cells that produce resin, which is a mixture of _____________ and rosin. This inhibits infection from insects and _______. ...
... _______ forms the outer protective covering for trees called bark. The plant also has ______ __________. These are specialised cells that produce resin, which is a mixture of _____________ and rosin. This inhibits infection from insects and _______. ...
Structure Comp. Rev. 2008
... 18. protect (apical) meristems / root tip tissue 19. channel water into vascular tissue 20. the place where one or more leaves are attached to a stem 21. lateral 22. dicots 23. heartwood 24. phloem moves sugars from leaves (source) to areas where they are stored (sink) 25. transpiration 26. to provi ...
... 18. protect (apical) meristems / root tip tissue 19. channel water into vascular tissue 20. the place where one or more leaves are attached to a stem 21. lateral 22. dicots 23. heartwood 24. phloem moves sugars from leaves (source) to areas where they are stored (sink) 25. transpiration 26. to provi ...
BIOE 109 Evolution
... - their seeds not enclosed in an ovary but borne in cones. - No flowers, ovaries - Gymnosperm sperm do not swim to the egg using water as the transfer vector. - Pollen grain is carried by wind or animal to the female gametophyte. - Vascular cambium, Wood - many have economical or human use Examples: ...
... - their seeds not enclosed in an ovary but borne in cones. - No flowers, ovaries - Gymnosperm sperm do not swim to the egg using water as the transfer vector. - Pollen grain is carried by wind or animal to the female gametophyte. - Vascular cambium, Wood - many have economical or human use Examples: ...
ch22
... and land directly on the ovules (which contain the immature female gametes) 3. Branches usually in pseudowhorls at right angles with the trunk. 4. Shoots dimorphic with long shoots and dwarf shoots. 5. Dwarf shoots borne in close spirals from axils of scaly bracts and bearing fascicles of leaves (ne ...
... and land directly on the ovules (which contain the immature female gametes) 3. Branches usually in pseudowhorls at right angles with the trunk. 4. Shoots dimorphic with long shoots and dwarf shoots. 5. Dwarf shoots borne in close spirals from axils of scaly bracts and bearing fascicles of leaves (ne ...
Plant Anatomy and Life Processes Study Guide
... What is the function (job) of the stem? See picture above. ...
... What is the function (job) of the stem? See picture above. ...
Unit V Anatomy and Physiology
... is made up of leaflike sepals. The corolla includes the petals. The stamens in which male gametophytes form. They consist of filaments topped by anthers in which pollen forms. The innermost whorl is the carpel in which female gametophytes form. It consists of an ovary with one or more ovules in whic ...
... is made up of leaflike sepals. The corolla includes the petals. The stamens in which male gametophytes form. They consist of filaments topped by anthers in which pollen forms. The innermost whorl is the carpel in which female gametophytes form. It consists of an ovary with one or more ovules in whic ...
NAME - Issaquah Connect
... Perfect flowers have both male and female reproductive organs, so the pollen from the anther can land on the stigma of the same plant, pollinating it and eventually fertilizing it to form a seed, this is called selfpollination (asexual). Imperfect flowers have only male or female reproductive struct ...
... Perfect flowers have both male and female reproductive organs, so the pollen from the anther can land on the stigma of the same plant, pollinating it and eventually fertilizing it to form a seed, this is called selfpollination (asexual). Imperfect flowers have only male or female reproductive struct ...
Botany Study Guide CH 24 Reproduction of Seed Plants
... 21. Corn, sugar beets, cauliflower, & cabbage were all developed by _________________ breeding. 22. From a diagram of several seeds, be able to determine how each seed is most likely to be dispersed. 23. What role does water play in the germination of a seed? 24. From a diagram that shows the Life C ...
... 21. Corn, sugar beets, cauliflower, & cabbage were all developed by _________________ breeding. 22. From a diagram of several seeds, be able to determine how each seed is most likely to be dispersed. 23. What role does water play in the germination of a seed? 24. From a diagram that shows the Life C ...
Acc_Bio_Plants_Flower_Lab
... by the petals, scent, or nectar. In flowers without petals, pollen is often transferred by wind. The pollen grows a pollen tube which extends down the length of the style into the ovary. Sperm travel through the pollen tube to the ovary. Only pollen from a flower of the same species will reach the o ...
... by the petals, scent, or nectar. In flowers without petals, pollen is often transferred by wind. The pollen grows a pollen tube which extends down the length of the style into the ovary. Sperm travel through the pollen tube to the ovary. Only pollen from a flower of the same species will reach the o ...
Chapter Outline
... 1. In all land plants, the sporophyte produces haploid spores by meiosis; in animals, meiosis produces gametes. 2. Haploid spores grow and develop into haploid gametophytes, which produce gametes by mitotic division. 3. Flowering plants are heterosporous, producing microspores and megaspores that be ...
... 1. In all land plants, the sporophyte produces haploid spores by meiosis; in animals, meiosis produces gametes. 2. Haploid spores grow and develop into haploid gametophytes, which produce gametes by mitotic division. 3. Flowering plants are heterosporous, producing microspores and megaspores that be ...
Pollination
Pollination is a process by which pollen is transferred from the anther to the stigma of the plant, thereby enabling fertilization and reproduction. It is unique to the angiosperms, the flower-bearing plants.In spite of a common perception that pollen grains are gametes, like the sperm cells of animals, this is incorrect; pollination is an event in the alternation of generations. Each pollen grain is a male haploid gametophyte, adapted to being transported to the female gametophyte, where it can effect fertilization by producing the male gamete (or gametes), in the process of double fertilization). A successful angiosperm pollen grain (gametophyte) containing the male gametes is transported to the stigma, where it germinates and its pollen tube grows down the style to the ovary. Its two gametes travel down the tube to where the gametophyte(s) containing the female gametes are held within the carpel. One nucleus fuses with the polar bodies to produce the endosperm tissues, and the other with the ovule to produce the embryo Hence the term: ""double fertilization"".In gymnosperms, the ovule is not contained in a carpel, but exposed on the surface of a dedicated support organ, such as the scale of a cone, so that the penetration of carpel tissue is unnecessary. Details of the process vary according to the division of gymnosperms in question.The receptive part of the carpel is called a stigma in the flowers of angiosperms. The receptive part of the gymnosperm ovule is called the micropyle. Pollination is a necessary step in the reproduction of flowering plants, resulting in the production of offspring that are genetically diverse.The study of pollination brings together many disciplines, such as botany, horticulture, entomology, and ecology. The pollination process as an interaction between flower and pollen vector was first addressed in the 18th century by Christian Konrad Sprengel. It is important in horticulture and agriculture, because fruiting is dependent on fertilization: the result of pollination. The study of pollination by insects is known as anthecology.