Biology: 16. Plant Reproduction Syllabus OB51 Distinguish between
... (i) Give a second way in which transfer of pollen between plants occurs. (ii) Draw a labelled diagram of a suitable flower showing the stigma, style, ovary, anther and filament. (iii)Name the part of the flower that produces the male gamete. (iv) Name the part of the plant that produces the female g ...
... (i) Give a second way in which transfer of pollen between plants occurs. (ii) Draw a labelled diagram of a suitable flower showing the stigma, style, ovary, anther and filament. (iii)Name the part of the flower that produces the male gamete. (iv) Name the part of the plant that produces the female g ...
Document
... – 1) Pollen grain is immature male gametophyte (microgametophyte) – 2) Male gametophyte matures in ovule, when pollen tube and sperm cell made. Entire male gametophyte ...
... – 1) Pollen grain is immature male gametophyte (microgametophyte) – 2) Male gametophyte matures in ovule, when pollen tube and sperm cell made. Entire male gametophyte ...
07 - Plant Reproduction (ch.38)
... • Ovule becomes a seed embryo and supply of nutrients • embryo has apical meristems and one or two cotyledons • Mitosis of triploid endosperm gives rise to nutrient-rich mass ...
... • Ovule becomes a seed embryo and supply of nutrients • embryo has apical meristems and one or two cotyledons • Mitosis of triploid endosperm gives rise to nutrient-rich mass ...
Ohio Bee Identification Guide
... All bees have three body segments, a head, thorax, and abdomen. The head is where large multi‐faceted eyes, long slender antennae, and cutting mouthparts are found. The thorax is the middle segment where the wings and legs attach. Last is the abdomen, which for female bees ends in a sting. ...
... All bees have three body segments, a head, thorax, and abdomen. The head is where large multi‐faceted eyes, long slender antennae, and cutting mouthparts are found. The thorax is the middle segment where the wings and legs attach. Last is the abdomen, which for female bees ends in a sting. ...
Monocots vs. Dicots - Mrs. Kunze Biology Web Site
... animals. Produces seeds and fruit. • Stigma- collects pollen on its surface and aids in fertilization • Style- elevates the stigma to collect pollen • Ovary- produce ovules (eggs); when fertilized ovules become seeds and fruits. ...
... animals. Produces seeds and fruit. • Stigma- collects pollen on its surface and aids in fertilization • Style- elevates the stigma to collect pollen • Ovary- produce ovules (eggs); when fertilized ovules become seeds and fruits. ...
30_Plant Diversity II The Evolution of Seed Plants
... megaspore, and one or more protective integuments – Gymnosperm megaspores have one integument – Angiosperm megaspores usually have two integuments ...
... megaspore, and one or more protective integuments – Gymnosperm megaspores have one integument – Angiosperm megaspores usually have two integuments ...
Parts of a Flower - New Jersey Agricultural Society
... Pistil: the female part of the flower shaped like a bowling pin that is made up of the stigma, style, ovary, and ovule Stigma: the sticky bulb at the center of the flower at the top of the pistil. Pollen grains attach to the stigma. Style: a long stalk that holds up the stigma. Pollen travels down t ...
... Pistil: the female part of the flower shaped like a bowling pin that is made up of the stigma, style, ovary, and ovule Stigma: the sticky bulb at the center of the flower at the top of the pistil. Pollen grains attach to the stigma. Style: a long stalk that holds up the stigma. Pollen travels down t ...
Lesson 4
... inside the pistil. Sperm cells from the pollen move through the tube. The sperm cells combine with the egg cells. This is called fertilization. After fertilization, the flower changes a lot. The fertilized eggs become seeds. The bottom part of the pistil grows into a fruit. The fruit protects the se ...
... inside the pistil. Sperm cells from the pollen move through the tube. The sperm cells combine with the egg cells. This is called fertilization. After fertilization, the flower changes a lot. The fertilized eggs become seeds. The bottom part of the pistil grows into a fruit. The fruit protects the se ...
Reproduction of the Flowering Plant
... Compare reproduction in plants by seed and by vegetative reproduction. Describe 4 methods of artificial propagation in flowering plants. Carry out an investigation to show the effects of water, oxygen and temperature on Germination ...
... Compare reproduction in plants by seed and by vegetative reproduction. Describe 4 methods of artificial propagation in flowering plants. Carry out an investigation to show the effects of water, oxygen and temperature on Germination ...
Plant Study Guide
... 4. Give the function of each structure found in the above diagram. 5. Name the 2 types of vascular tissue. Describe the function of each. 6. Name and describe the 2 types of growth that occurs in plants. 7. What is a seed? 8. Plants are classified according to what criteria? 9. Do Bryophytes have va ...
... 4. Give the function of each structure found in the above diagram. 5. Name the 2 types of vascular tissue. Describe the function of each. 6. Name and describe the 2 types of growth that occurs in plants. 7. What is a seed? 8. Plants are classified according to what criteria? 9. Do Bryophytes have va ...
the plant kingdom - National Botanic Gardens
... the embryo sac[=Megasporangia or Female gemetophyte]). Gametophyte develops into a large endosperm (many thousands of haploid cells) prior to fertilisation. Each megasporangia develops several archegonia (2-5), if more than one is fertilised, then competition between embryos usually results in only ...
... the embryo sac[=Megasporangia or Female gemetophyte]). Gametophyte develops into a large endosperm (many thousands of haploid cells) prior to fertilisation. Each megasporangia develops several archegonia (2-5), if more than one is fertilised, then competition between embryos usually results in only ...
Lecture 6B
... • asexual reproduction = the development of offspring without fusion of sperm and egg • result is called a clone • nearly genetically identical to the parent • advantages: no need for a pollinator – works well if plants are sparsely distributed – also works well if the plant is well suited to its en ...
... • asexual reproduction = the development of offspring without fusion of sperm and egg • result is called a clone • nearly genetically identical to the parent • advantages: no need for a pollinator – works well if plants are sparsely distributed – also works well if the plant is well suited to its en ...
BIOL 153L General Biology
... that is topped by the two-parted anther. Pollen forms in the anthers. The female reproductive structure is the pistil (composed of one or more carpels). The rounded base is the ovary; it contains one to several ovules that produce eggs. The lobed, and often sticky, top is the stigma (Fig. 19-6, p. 4 ...
... that is topped by the two-parted anther. Pollen forms in the anthers. The female reproductive structure is the pistil (composed of one or more carpels). The rounded base is the ovary; it contains one to several ovules that produce eggs. The lobed, and often sticky, top is the stigma (Fig. 19-6, p. 4 ...
CB098-008.44 - Workforce Solutions
... egg and sperm but the resulting embryo has only one parent. Selfing can be prevented if a plant is dioecious. Why? Selfing can also be prevented if the stigma inhibits pollen tube growth or if on the same plant, the anther releases pollen some time before the stigma on the same plant matures (Recept ...
... egg and sperm but the resulting embryo has only one parent. Selfing can be prevented if a plant is dioecious. Why? Selfing can also be prevented if the stigma inhibits pollen tube growth or if on the same plant, the anther releases pollen some time before the stigma on the same plant matures (Recept ...
Plants - Spring-Ford Area School District
... To reduce cold sores & other similar, related and unrelated viral infection symptoms • As a preservative (was used in mummification by the Egyptians) ...
... To reduce cold sores & other similar, related and unrelated viral infection symptoms • As a preservative (was used in mummification by the Egyptians) ...
Plants and People
... attract animals that help the process of pollination. The coloration may extend into the ultraviolet, which is visible to the compound eyes of insects, but not to the eyes of birds. ...
... attract animals that help the process of pollination. The coloration may extend into the ultraviolet, which is visible to the compound eyes of insects, but not to the eyes of birds. ...
Figure 38.2 Simplified overview of angiosperm life cycle
... In monoecious plants, with separate male and female flowers on the same plant, these flowers mature at different times or are physically separated Dichogamy: stamens and carpels mature at different times on the same flower Stamens and carpels are physically separated in the same flower Genetic self- ...
... In monoecious plants, with separate male and female flowers on the same plant, these flowers mature at different times or are physically separated Dichogamy: stamens and carpels mature at different times on the same flower Stamens and carpels are physically separated in the same flower Genetic self- ...
basic horticulture – notes
... INDEHISCENT – does not split open ACHENE – one seed, seed coat not fused to seed SAMARA – winged achene Example: Maple, Elm NUT – achene with hard wall SCHIZOCARP – 2 or more achenes attached at one spot Example: Carrot, Dill, Parley GRAIN – one seed with coat fused DEHISCENT – splits ...
... INDEHISCENT – does not split open ACHENE – one seed, seed coat not fused to seed SAMARA – winged achene Example: Maple, Elm NUT – achene with hard wall SCHIZOCARP – 2 or more achenes attached at one spot Example: Carrot, Dill, Parley GRAIN – one seed with coat fused DEHISCENT – splits ...
Lecture 12: Gymnosperms and Angiosperms
... sporophyte, while the haploid gametophyte stages are microscopic. The unique feature about the life cycle of flowering plants is a double fertilization that produces a diploid zygote and a triploid endosperm or nutritive tissue. ...
... sporophyte, while the haploid gametophyte stages are microscopic. The unique feature about the life cycle of flowering plants is a double fertilization that produces a diploid zygote and a triploid endosperm or nutritive tissue. ...
Question Answer 1 This part of a plant protects the seeds Fruit 2
... Part of the pistil that is between the stigma and the ovary Part of the flower where the ovules are located Ovary develops into a Process that transfers pollen from anther to stigma Process in which sperm unites with ovule Part of a seed that is the “tiny plant” Part of the seed containing food for ...
... Part of the pistil that is between the stigma and the ovary Part of the flower where the ovules are located Ovary develops into a Process that transfers pollen from anther to stigma Process in which sperm unites with ovule Part of a seed that is the “tiny plant” Part of the seed containing food for ...
Chapter 19 - Napa Valley College
... • Does not produce an archegonium • Does not provide nutri9on to the embryo Small male gametophyte (3 cells) ...
... • Does not produce an archegonium • Does not provide nutri9on to the embryo Small male gametophyte (3 cells) ...
CHAPTER 13 PLANT REPRODUCTIVE BIOLOGY REVIEW
... Outbreeding (=outcrossing, allogamy, or xenogamy) and inbreeding. 8. What are the advantages and disadvantages of outbreeding? The general advantage of outbreeding is to promote an increase in phenotypic variability within a population. This generally enables plants to adapt to a wider range of envi ...
... Outbreeding (=outcrossing, allogamy, or xenogamy) and inbreeding. 8. What are the advantages and disadvantages of outbreeding? The general advantage of outbreeding is to promote an increase in phenotypic variability within a population. This generally enables plants to adapt to a wider range of envi ...
Lecture 6B
... • the triploid central cell form the endosperm • like animals – once the sperm enters the egg – no other sperm can enter – prevents polyspermy • the zygote develops into an embryo that is packaged along with food (endosperm) into the seed (embryo + endosperm + integuments/seed coat) • fruit begins t ...
... • the triploid central cell form the endosperm • like animals – once the sperm enters the egg – no other sperm can enter – prevents polyspermy • the zygote develops into an embryo that is packaged along with food (endosperm) into the seed (embryo + endosperm + integuments/seed coat) • fruit begins t ...
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.