Saturday, April 16, 2011

Friday, April 15th: Plant Nutrition Wrap Up

1.  Ch. 40-42 Reading Guide due Monday.
2.  There will be a quiz on the Ch. 40-42 Reading Guide on Monday.  15 questions.
3.  Vocab Quiz 4 on Tuesday.

We had our ASB election assembly today, so classes were only 40 minutes.

Students worked with table partners to compare answers to the Plant Essential Question 1: How do plants acquire and distribute nutrients and water?  And then we went over the information together.
Most of our focus today was on the xylem and phloem, both their composition and how they function.  We concluded with a quick overview of the symbiotic relationships that help plants acquire nutrients and water.  These included:
  • fungal mycorhizzae that connect to plant roots to increase surface area for water absorption.
  • nitrogen-fixing bacteria that may live in nodules at the plant root.
  • insects that provide nitrogen to carnivorous plants.
  • parasites that remove nutrients or water from their plant hosts (aphids, some types of ivy, etc.)

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