plant notes revised
... to epidermal and ground tissue (e.g. the pith) when a herbaceous stem develops into a woody stem? p725-8 24) A unique and very important adaptation in angiosperms is animal pollination. Some angiosperms are pollinated by wind, like gymnosperms. But most angiosperm pollen is carried to a female stigm ...
... to epidermal and ground tissue (e.g. the pith) when a herbaceous stem develops into a woody stem? p725-8 24) A unique and very important adaptation in angiosperms is animal pollination. Some angiosperms are pollinated by wind, like gymnosperms. But most angiosperm pollen is carried to a female stigm ...
6 slides
... 1) Drying: Seed must dry out • Seed doesn’t germinate in fruit 2) Cold: Seed must be exposed to prolong cold period • Seed doesn’t germinate in winter 3) Seed Coat Disruption: Seed must have coat broken • Seed doesn’t germinate off periods (e.g. dry) Germination Events: 1) Roots emerge (gather water ...
... 1) Drying: Seed must dry out • Seed doesn’t germinate in fruit 2) Cold: Seed must be exposed to prolong cold period • Seed doesn’t germinate in winter 3) Seed Coat Disruption: Seed must have coat broken • Seed doesn’t germinate off periods (e.g. dry) Germination Events: 1) Roots emerge (gather water ...
Kingdom Plantae: Types of Plants and Their Characteristics
... stoma (plural: stomata) = a small opening or pore on the underside of the leaf; carbon dioxide enters the leaf through the stomata and oxygen and water vapor exit through them; stomata are usually open during the day (when photosynthesis occurs) and closed at night (to conserve water). a. transpirat ...
... stoma (plural: stomata) = a small opening or pore on the underside of the leaf; carbon dioxide enters the leaf through the stomata and oxygen and water vapor exit through them; stomata are usually open during the day (when photosynthesis occurs) and closed at night (to conserve water). a. transpirat ...
Functions of Plant Parts
... » Some fruits help disperse seeds by providing food for animals: a) animals eat the fruit and seeds. The fruit is digested and the seeds pass out in the animals’ feces at (presumably) another location. Like this nice Big buck ...
... » Some fruits help disperse seeds by providing food for animals: a) animals eat the fruit and seeds. The fruit is digested and the seeds pass out in the animals’ feces at (presumably) another location. Like this nice Big buck ...
Chapter 23a-Angiosperms How do angiosperms differ from
... pollen sacs microsporocytes microspores pollen grain generative cell nucleus tube cell nucleus germinated pollen grain pollen tube ...
... pollen sacs microsporocytes microspores pollen grain generative cell nucleus tube cell nucleus germinated pollen grain pollen tube ...
Teacher`s Guide
... Computer wizard Anna Gibson and her lab partner Ja ck have some questions about plant re p ro d u c t i o n . Do all plants re p roduce in the same way? Can a flower really be the secret to world domination? Over millions of years, plants h ave developed many diffe rent fe a t u res that help them s ...
... Computer wizard Anna Gibson and her lab partner Ja ck have some questions about plant re p ro d u c t i o n . Do all plants re p roduce in the same way? Can a flower really be the secret to world domination? Over millions of years, plants h ave developed many diffe rent fe a t u res that help them s ...
Reproduction_animal_HKDSE_common misconception
... • Pollen grains are the male gametes of flowering plants. ...
... • Pollen grains are the male gametes of flowering plants. ...
Angiosperms - flowering plants
... Four microspores result from each division- these are Haploid (1n). Tapetum – nutritive tissue (also lays down the sporopollenin walls) ...
... Four microspores result from each division- these are Haploid (1n). Tapetum – nutritive tissue (also lays down the sporopollenin walls) ...
World of plants - World of Teaching
... Why is the seed coat important? Name the parts of the embryo plant. Why is the food store in a seed important? Name the three factors required for germination. 5. Where are a plant’s sex organs found? 6. Name two parts of a flower that attract insects. 7. Name the male part of a flower. 8. Which par ...
... Why is the seed coat important? Name the parts of the embryo plant. Why is the food store in a seed important? Name the three factors required for germination. 5. Where are a plant’s sex organs found? 6. Name two parts of a flower that attract insects. 7. Name the male part of a flower. 8. Which par ...
Unit 4 Notes #3Terrestrial Plants and Their - Mr. Lesiuk
... -Example: Fruit- keeps embryo from drying out, also promotes dispersal by passing through the digestive tract of a given animal. -Also a proper SEED - embryo with food, and seed coat. 6) Mechanisms for the dispersal of gametes and embryos. In water: Gametes and embryos swim or float in water current ...
... -Example: Fruit- keeps embryo from drying out, also promotes dispersal by passing through the digestive tract of a given animal. -Also a proper SEED - embryo with food, and seed coat. 6) Mechanisms for the dispersal of gametes and embryos. In water: Gametes and embryos swim or float in water current ...
plants – day 4
... Seed plants are called ___________________, a subdivision of vascular plants Seed plants have roots, stems, and leaves exhibiting a huge variety of textures, sizes, shapes odours and colours; they are the most recently evolved plant group Have ______________ _______________ that are NOT dependent on ...
... Seed plants are called ___________________, a subdivision of vascular plants Seed plants have roots, stems, and leaves exhibiting a huge variety of textures, sizes, shapes odours and colours; they are the most recently evolved plant group Have ______________ _______________ that are NOT dependent on ...
Plant Lecture in Power Point
... Gymnosperms A. Needle-like leaves B. Found in moderately cold & dry regions C. Direct pollination ovules NOT enclosed by tissue of the sporophyte (gym= naked) ...
... Gymnosperms A. Needle-like leaves B. Found in moderately cold & dry regions C. Direct pollination ovules NOT enclosed by tissue of the sporophyte (gym= naked) ...
Plant Classification
... • Do not produce flowers, pollen or seeds oReproduce by producing oSperm ...
... • Do not produce flowers, pollen or seeds oReproduce by producing oSperm ...
2- (G) Explain what true breeding is
... 4a: filament: supports anther 4b: anther: produce male gamete (sex cell) called pollen 5- Carpel: female sex organ of plant 5a: ovary: produces ovule containing female gamete 5b: stigma: sticky platform on which pollen is deposited. 6- Nectary: produce nectar (sugary liquid to attract pollinator) ...
... 4a: filament: supports anther 4b: anther: produce male gamete (sex cell) called pollen 5- Carpel: female sex organ of plant 5a: ovary: produces ovule containing female gamete 5b: stigma: sticky platform on which pollen is deposited. 6- Nectary: produce nectar (sugary liquid to attract pollinator) ...
2- (G) Explain what true breeding is
... 4a: filament: supports anther 4b: anther: produce male gamete (sex cell) called pollen 5- Carpel: female sex organ of plant 5a: ovary: produces ovule containing female gamete 5b: stigma: sticky platform on which pollen is deposited. 6- Nectary: produce nectar (sugary liquid to attract pollinator) ...
... 4a: filament: supports anther 4b: anther: produce male gamete (sex cell) called pollen 5- Carpel: female sex organ of plant 5a: ovary: produces ovule containing female gamete 5b: stigma: sticky platform on which pollen is deposited. 6- Nectary: produce nectar (sugary liquid to attract pollinator) ...
File
... Generalized life cycle of an angiosperm: Within the anther chambers, microspore mother cells undergo meiosis to produce haploid pollen grains, or male gametophyte. Within the ovule, a megaspore mother cell undergoes meiosis to produce only one megaspore, or female gametophyte. Pollination is a ...
... Generalized life cycle of an angiosperm: Within the anther chambers, microspore mother cells undergo meiosis to produce haploid pollen grains, or male gametophyte. Within the ovule, a megaspore mother cell undergoes meiosis to produce only one megaspore, or female gametophyte. Pollination is a ...
Reproduction of the Flowering Plant
... Describe 4 methods of artificial propagation in flowering plants. Carry out an investigation to show the effects of water, oxygen and temperature on Germination ...
... Describe 4 methods of artificial propagation in flowering plants. Carry out an investigation to show the effects of water, oxygen and temperature on Germination ...
Lecture XVII – Plant Reproduction and Development – Dr
... •Reproductive organs contain sporangia – chambers in which gametophytes develop: •male gametophyte: pollen grain •female gametophyte; embryo sac ...
... •Reproductive organs contain sporangia – chambers in which gametophytes develop: •male gametophyte: pollen grain •female gametophyte; embryo sac ...
Angiosperms: Phylum Anthophyta, the flowering plants
... • 2 main modes of dispersal for pollen: abiotic (mostly wind but also water) and biotic (usually animals such as insects, birds, and bats) • These 2 strategies are thought to have different advantages in different environments ...
... • 2 main modes of dispersal for pollen: abiotic (mostly wind but also water) and biotic (usually animals such as insects, birds, and bats) • These 2 strategies are thought to have different advantages in different environments ...
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.