PDF-Light use and leaf gas exchange

Chapter 1 John R Evans and Susanne von Caemmerer Research School of Biology Australian National University Contents 11 Leaf anatomy light interception and gas exchange Case Study 11 Deve. 13.4 Gas exchange in the leaf of a plant. Learning outcomes. Students should be able to understand the following:. How plants exchange gases?. How the leaf of a dicotyledonous plant is adapted for efficient gas exchange. Key words needed in you paragraph:. Carbon dioxide. Stomata. Closed in hot sunny conditions. Water loss. Photosynthesis (slow down). Guard cells. Diffusion . Open = turgid = bulges. Closed = flaccid = collapse. f`=1;r=4;v=Some13g f`=1;r=3;v=Noneg f`=1;r=1;v=Noneg Leaf Leaf f`=2;r=3;v=Some9g f`=2;r=2;v=Noneg Leaf Leaf f`=3;r=3;v=Some5g Leaf Leaf f`=4;r=4;v=Some2g Leaf Leaf 1AnOCamlimplementationisprovidedassu 13.4 Gas exchange in the leaf of a plant. Learning outcomes. Students should be able to understand the following:. How plants exchange gases?. How the leaf of a dicotyledonous plant is adapted for efficient gas exchange. by Precision Planting. Precision Planting of Corn (. Zea. . mays. L.) to Manipulate Leaf Geometry. Research Questions. Can corn leaf orientation be manipulated by controlling seed position at planting?. Guilherme. Torres, Jacob . Vossenkemper. , William . Raun. , John . Solie. and Randy Taylor . Department of Plant and Soil Sciences . Department of . Biosystems. and Agricultural Engineering. Oklahoma State University. Baseline (Flightpath D): . To be able to recognize examples of plant organs, state their functions and use a light microscope to view a cross-section of a leaf. State the functions of different plant tissues. Guilherme. Torres, Jacob . Vossenkemper. , William . Raun. , John . Solie. and Randy Taylor . Department of Plant and Soil Sciences . Department of . Biosystems. and Agricultural Engineering. Oklahoma State University. Leaf Structure and Function. and AC Leaf Hunter Activity!! (on Monday). Copy this into your notebooks.. Leaf Structure. Fig. 1: . Cross-Section of a Leaf. Term Definitions:. Epidermis – . Outer layer of . Photosynthesis. - a process used by plants and other autotrophs to convert the light energy captured from the sun into chemical energy that can be used to fuel the organism’s activities. . *It is the way plants make food! . (. Zea. . mays. L.) to Manipulate. Leaf Geometry. Guilherme Torres. Department of Plant and Soil Sciences . Oklahoma State University. 60% of yield improvement due to genetic advances and 40% due to management practices. Guilherme. Torres, Jacob . Vossenkemper. , William . Raun. , John . Solie. and Randy Taylor . Department of Plant and Soil Sciences . Department of . Biosystems. and Agricultural Engineering. Oklahoma State University. Which gases will leaves be exchanging?. Gas Exchange in Leaves. What features will gas exchange organs have to maximise the rate of exchange?. Large surface area, short diffusion pathway, concentration gradient. 8. Topic: . B5 Photosynthesis. Key Learning Points:. Key Diagrams:. Key Questions:. 1. Photosynthesis. A chemical process used by plants to make glucose and oxygen from carbon. dioxide and water, using light energy. Oxygen is produced as a by-product of photosynthesis. .