Presentation on theme: "Topic: Reproduction Aim: Describe the structure of a flower and how it uses sexual reproduction. Do Now: Practice Questions HW: Castle Learning – Sexual."— Presentation transcript:
1 Topic: ReproductionAim: Describe the structure of a flower and how it uses sexual reproduction.Do Now: Practice QuestionsHW: Castle Learning – Sexual Repro and Meiosis – due Friday!
2 zygote fertilization B, C, D blastula gastrula What is structure A? How was it produced?2. Which structures represent cleavage?3. What is structure E?4. What is structure F?zygotefertilizationB, C, Dblastulagastrula
3 Identify all the structures that are labeled. G - ovaryJ – urinary bladderH - oviductK - vaginaI - uterus
4 Where does fertilization occur? Where does the embryo develop?Where does the placenta develop?H - oviductI - uterusI - uterus
5 Stamen Male reproductive organ Anther: produces pollen grains (male gametes)Filament: stalk-like structure
7 Pistil Female reproductive organ Stigma: receives pollen (sticky) Style: supports stigmaOvary: contains ovules (contain eggs)Once eggs are fertilized:Ovary will develop into fruitOvules become seedsPistil
20 Pollen tube grows down style and into ovule Pollen moves down pollen tubeEgg is fertilized zygote develops into embryoOvule develops into seedOvary develops into a fruit
21 Seed Structure Embryo: - Epicotyl: will develop into the upper portion of the plant- Hypocotyl: will develop into roots and lower portion of the plant2.Cotyledon: food source for plant embryoSeed StructureSeed coatEpicotylHypocotylCotyledon
22 Let’s summarize…Describe the male reproductive organ of the flower.2. Describe the female reproductive organ of the flower.3. Explain what occurs during pollination.4. Explain what occurs after pollination.5. Explain what happens to the flower once the eggs are fertilized.6. Describe the structure of a seed.
23 The part of the pistil which contains the pollen tube is the __________. The transfer of pollen between the anther and the stigma in any flowering plant or plants is called _____.________ pollination occurs when pollen is transferred between flowers on different plants.In order to reach an ovule, a ______ must grow through the style.
24 The sex cells in a flowering plant are located in the sepals and petals (2) stigma and nectar(3) fruit and seed (4) stamens and pistil2. In order to reach an ovule, a ___________ grows through the style and into the ovary.sepal (2) fruit (3) pollen tube (4) seed3. The egg cell of a flowering plant develops in thepollen grain (2) ovule(3) Stigma (4) fruit
25 The sperm of flowering plants is contained in the ______ grain. The entire female reproductive organ in flowering plants is called the _______.The sticky top of the pistil is called the _______.The entire male reproductive organ in flowering plants is called the ________.