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Key Concepts in Plant Organ Systems and Functions

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This study guide covers essential concepts of seed-producing plants, focusing on the three main organs: roots, stems, and leaves, along with their functions such as water absorption, transportation of nutrients, and photosynthesis. It delves into the vascular system, detailing the roles of xylem and phloem in nutrient transport. It also addresses transpiration and its critical role in the vascular transport of water. Key reproductive structures like stamen and pistil are identified, along with the effects of plant hormones like auxins and gibberellins on growth.

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Key Concepts in Plant Organ Systems and Functions

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  1. Unit 13 – Systems Study Guide

  2. 1. Identify the 3 main organs AND their function of seed producing plants. Organ Function ROOTS ABSORPTION OF WATER AND NITRATES STEMS VASCULAR SYSTEM TO TRANSPORT WATER & SUGARS LEAVES PHOTOSYNTHESIS – SUGAR PRODUCTION

  3. 2. Identify the two types of vascular tissue in plants and their function. Vascular Tissue FunctionXYLEM TRANSPORTS WATER FROM ROOTS TO LEAVESPHLOEM TRANSPORTS THE PRODUCTS OF PHOTOSYNTHESIS - SUGARS

  4. 3. What is transpiration? RELEASE OF WATER VAPOR THRU STOMATES IN THE LEAVES

  5. 4. How is transpiration involved in the vascular transport of water through a plant? TRANSPIRATION IS THE END OF THE LINE FOR THE VASCULAR SYSTEM. IF TRANSPIRATION STOPS, THE MOVEMENT OF WATER UP THE STEM STOPS.

  6. Petals Filament Anther Stigma Style Ovary Ovum – egg Pistil (carpal)

  7. 6. Produces the male gamete called pollen - ANTHER7. Produces the female gamete called the ovum - OVARY8. Attracts insects using an array of shapes and colors. PETALS Identify the function of these structures 9. Stamen - Male reproductive organ10. Pistil - (carpal) female reproductive organ

  8. 11. Name the type of reproduction that flowering plants use? SEXUAL REPRODUCTION

  9. 12.Plants – Internal • Humans – Internal • Fish – External

  10. 15. What are auxins? - Auxins are a plant hormone that stimulates cell reproduction and elongation

  11. 16. How are auxins related to phototrophism?

  12. 17. What are the functions of Gibberellins? This hormone stimulates growth in stems and FRUITS.

  13. EXPERIMENT DESIGN – How do gibberlins affect the growth of strawberries? Independent – Amount of Gibberlins Dependant – Mass of Strawberries Example 1 – alter amount of gibberlin injections 0ml 0.001ml 0.01ml 0.1 1.0 10

  14. Example 2 Control group Inject a certain amount No extra gibberlin injected of gibberlins TRIALS – MINIMUM OF 10

  15. Organism Organ Systems Organ Tissues Cells

  16. 39 & 40. Review Homeostatis and Feedback mechanisms with Tim & Moby. Click on the picture to start the video. If video does not load, open internet and type in this URL: http://www.youtube.com/watch?v=H4Xi1R_pJKU

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