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Unit 2:Plants

Unit 2:Plants . Essential Questions. How do plants obtain water and nutrients needed for survival? How do plants minimize water loss through their leaves? What is photosynthesis and how is it accomplished? What factors affect the rate of photosynthesis?.

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Unit 2:Plants

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  1. Unit 2:Plants

  2. Essential Questions • How do plants obtain water and nutrients needed for survival? • How do plants minimize water loss through their leaves? • What is photosynthesis and how is it accomplished? • What factors affect the rate of photosynthesis?

  3. Day 1: Mineral and Water Uptake by Plants • Required Readings: • 2.22, 2.27 • Learning Objectives: • To know that plants require minerals and what their functions are • To understand that water can enter and leave cells by osmosis • To understand that dissolved substances may enter and leave cells by diffusion and active transport

  4. Starter • Read the “Mineral Nutrients” information • Choose 5 minerals and explain why they are important for plant growth and development. • Time: 15 minutes

  5. Activity 1 • Design an experiment that would test how different mineral deficiencies affect the growth of a plant • Include: • Question – what are you testing? • Variables & control • Method and materials • Expected outcomes • Time: 20 minutes

  6. Activity 2 • How do fertilizers have a negative effect on the environment? • Research the various ways that fertilizers can be harmful to the environment and the other organisms that can be effected (with a partner). • Write a 1-2 page paper on the harms fertilizers can cause • Due: September 24 • Time: 30 minutes

  7. Activity 3 • Draw a picture (on paper provided) to show how water and minerals (ions) are taken into a plant. • Include: • What processes are occurring? (What mode of transport? There are 3 different ones occurring.) • The structures needed in order for this to happen • How does the shape of these structures allow the transport of water to occur? • Time: 20 minutes

  8. Closing and Homework • Discuss the following questions: • Why would farmers drain fields that are susceptible to flooding? • Why would farmers cover their fields with black polythene? Why would they not cover it with white polythene? • Homework: • Fertilizer paper (September 24)

  9. Day 2 • Required Readings: • 2.28 • Learning Objectives: • To appreciate that water and dissolved substances are transported around the plant in specialized transport tissues

  10. Starter • Look at the microscope slides in the back of the conducting tissues • Draw a picture of what you see • How do these structures accomplish water and mineral transport? • Time: 20 minutes

  11. Activity 1 • Create a slide of a piece of celery to view under the microscope • The celery needs to be thinly sliced • Draw a diagram of what you see • Time: 20 minutes

  12. Activity 2 • Look at the picture of the potato plant. • What is a source and what is a sink in plants? • How can a potato be both? • Time: 15 minutes

  13. Activity 3 • Create a concept map to show how various materials are transported from the roots to the leaves of a plant. • You may include diagrams/pictures as well • Time: 25 minutes

  14. Closing and Homework • Discuss the following questions: • What are the two vascular tissues in flowering plants and what is their job? • Why does the direction of sugar transport vary from season to season? • Why must sugar be transported to sinks? • Homework: • Fertilizer paper (September 24)

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