chapter 37

Chapter 37 - Chapter 37 Plant Nutrition Tuesday 9:28 AM Where did most of the biomass of this tree come from 1 Air 2 Soil 3 Water 4 Sunlight

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  Chapter 37 - Plant Nutrition Tuesday, March 27, 2007 9:28 AM Where did most of the biomass of this tree come from? 1. Air 2. Soil 3. Water 4. Sunlight   Biomass is the organic material within the plant.     Concept 37.1: Plants require certain chemical elements to complete their life cycle Plants derive most of their organic mass (biomass) from the CO2 in the air Also need soil nutrients like water and minerals Fig. 37.2   Essential Plant Elements Essential element: element required by a plant to complete its life cycle Macronutrients: required by plants in relatively large amounts  Micronutrients: elements that are needed in only small amounts Function mainly as cofactors in chemical reactions Table 37.1   Three identical plates of radish seeds are incubated under three conditions, with results  as shown. Their DRY weights in increasing order will be____. 1. Light no water 2. Light, water 3. No Light, water   1. 1,2,3 2. 3,1,2 3. 1,3,2 4. 3,2,1   No light, water - 1.20 g Light no water - 1.46 g  Light, water - 1.63 g      Concept 37.2: Soil quality is a major determinant of plant distribution and growth
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In addition to climate, texture and composition of soil are major factors determining the  distribution of plants   Texture and Composition of Soils
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This note was uploaded on 04/11/2008 for the course BIOL 1202 taught by Professor Gregg during the Spring '08 term at LSU.

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Chapter 37 - Chapter 37 Plant Nutrition Tuesday 9:28 AM Where did most of the biomass of this tree come from 1 Air 2 Soil 3 Water 4 Sunlight

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