plant anatomy and transport chapters 35 and 36 --focus on sap flow--
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![Page 1: Plant Anatomy and Transport chapters 35 and 36 --focus on sap flow--](https://reader030.vdocuments.net/reader030/viewer/2022032704/56649d3e5503460f94a16709/html5/thumbnails/1.jpg)
Plant Anatomy and Transportchapters 35 and 36
--focus on sap flow--
![Page 2: Plant Anatomy and Transport chapters 35 and 36 --focus on sap flow--](https://reader030.vdocuments.net/reader030/viewer/2022032704/56649d3e5503460f94a16709/html5/thumbnails/2.jpg)
Sap Flow in Plants
1. basic root structure2. water flow through the cortex cells3. the endodermis as a border crossing4. water flow in the xylem5. the fate of water in the leaf
—photosynthesis—transpiration
—stomate function6. sap flow and maple syrup
![Page 3: Plant Anatomy and Transport chapters 35 and 36 --focus on sap flow--](https://reader030.vdocuments.net/reader030/viewer/2022032704/56649d3e5503460f94a16709/html5/thumbnails/3.jpg)
Figure 35.3 Radish root hairs
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Figure 35.14 Primary growth of a root
![Page 5: Plant Anatomy and Transport chapters 35 and 36 --focus on sap flow--](https://reader030.vdocuments.net/reader030/viewer/2022032704/56649d3e5503460f94a16709/html5/thumbnails/5.jpg)
epidermis
cortex
vascular cylinder
endodermis
![Page 6: Plant Anatomy and Transport chapters 35 and 36 --focus on sap flow--](https://reader030.vdocuments.net/reader030/viewer/2022032704/56649d3e5503460f94a16709/html5/thumbnails/6.jpg)
Sap Flow in Plants
1. basic root structure2. water flow through the cortex cells3. the endodermis as a border crossing4. water flow in the xylem5. the fate of water in the leaf
—photosynthesis—transpiration
—stomate function6. sap flow and maple syrup
![Page 7: Plant Anatomy and Transport chapters 35 and 36 --focus on sap flow--](https://reader030.vdocuments.net/reader030/viewer/2022032704/56649d3e5503460f94a16709/html5/thumbnails/7.jpg)
Figure 36.11 Ascent of water in a tree
![Page 8: Plant Anatomy and Transport chapters 35 and 36 --focus on sap flow--](https://reader030.vdocuments.net/reader030/viewer/2022032704/56649d3e5503460f94a16709/html5/thumbnails/8.jpg)
![Page 9: Plant Anatomy and Transport chapters 35 and 36 --focus on sap flow--](https://reader030.vdocuments.net/reader030/viewer/2022032704/56649d3e5503460f94a16709/html5/thumbnails/9.jpg)
![Page 10: Plant Anatomy and Transport chapters 35 and 36 --focus on sap flow--](https://reader030.vdocuments.net/reader030/viewer/2022032704/56649d3e5503460f94a16709/html5/thumbnails/10.jpg)
Figure 36.6 Compartments of plant cells and tissues and routes for lateral transport
![Page 11: Plant Anatomy and Transport chapters 35 and 36 --focus on sap flow--](https://reader030.vdocuments.net/reader030/viewer/2022032704/56649d3e5503460f94a16709/html5/thumbnails/11.jpg)
Sap Flow in Plants
1. basic root structure2. water flow through the cortex cells3. the endodermis as a border crossing4. water flow in the xylem5. the fate of water in the leaf
—photosynthesis—transpiration
—stomate function6. sap flow and maple syrup
![Page 12: Plant Anatomy and Transport chapters 35 and 36 --focus on sap flow--](https://reader030.vdocuments.net/reader030/viewer/2022032704/56649d3e5503460f94a16709/html5/thumbnails/12.jpg)
Figure 36.7 Lateral transport of minerals and water in roots
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Apoplast and Symplast
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Crossing the endodermis boundary
![Page 15: Plant Anatomy and Transport chapters 35 and 36 --focus on sap flow--](https://reader030.vdocuments.net/reader030/viewer/2022032704/56649d3e5503460f94a16709/html5/thumbnails/15.jpg)
Sap Flow in Plants
1. basic root structure2. water flow through the cortex cells3. the endodermis as a border crossing4. water flow in the xylem5. the fate of water in the leaf
—photosynthesis—transpiration
—stomate function6. sap flow and maple syrup
![Page 16: Plant Anatomy and Transport chapters 35 and 36 --focus on sap flow--](https://reader030.vdocuments.net/reader030/viewer/2022032704/56649d3e5503460f94a16709/html5/thumbnails/16.jpg)
A cross section of a dicot root(the purple is starch, the red is lignin)
cortex epidermisvascular cylinder
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Figure 35.10 Review of general plant cell structure
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Figure 36.11 Ascent of water in a tree
![Page 19: Plant Anatomy and Transport chapters 35 and 36 --focus on sap flow--](https://reader030.vdocuments.net/reader030/viewer/2022032704/56649d3e5503460f94a16709/html5/thumbnails/19.jpg)
Figure 35.8 Water-conducting cells of xylem
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tracheids vessel elements
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Tissue: XylemCell Type: Tracheary
Elements
![Page 22: Plant Anatomy and Transport chapters 35 and 36 --focus on sap flow--](https://reader030.vdocuments.net/reader030/viewer/2022032704/56649d3e5503460f94a16709/html5/thumbnails/22.jpg)
Sap Flow in Plants
1. basic root structure2. water flow through the cortex cells3. the endodermis as a border crossing4. water flow in the xylem5. the fate of water in the leaf
—photosynthesis—transpiration
—stomate function6. sap flow and maple syrup
![Page 23: Plant Anatomy and Transport chapters 35 and 36 --focus on sap flow--](https://reader030.vdocuments.net/reader030/viewer/2022032704/56649d3e5503460f94a16709/html5/thumbnails/23.jpg)
Figure 36.11 Ascent of water in a tree
![Page 24: Plant Anatomy and Transport chapters 35 and 36 --focus on sap flow--](https://reader030.vdocuments.net/reader030/viewer/2022032704/56649d3e5503460f94a16709/html5/thumbnails/24.jpg)
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Figure 10.2 Focusing in on the location of photosynthesis in a plant
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Figure 10.9 Location and structure of chlorophyll molecules in plants
CO2 + H20 C6H1206 + O2
Light energy
![Page 27: Plant Anatomy and Transport chapters 35 and 36 --focus on sap flow--](https://reader030.vdocuments.net/reader030/viewer/2022032704/56649d3e5503460f94a16709/html5/thumbnails/27.jpg)
Sap Flow in Plants
1. basic root structure2. water flow through the cortex cells3. the endodermis as a border crossing4. water flow in the xylem5. the fate of water in the leaf
—photosynthesis—transpiration
—stomate function6. sap flow and maple syrup
![Page 28: Plant Anatomy and Transport chapters 35 and 36 --focus on sap flow--](https://reader030.vdocuments.net/reader030/viewer/2022032704/56649d3e5503460f94a16709/html5/thumbnails/28.jpg)
Figure 36.10 The generation of transpirational pull in a leaf
![Page 29: Plant Anatomy and Transport chapters 35 and 36 --focus on sap flow--](https://reader030.vdocuments.net/reader030/viewer/2022032704/56649d3e5503460f94a16709/html5/thumbnails/29.jpg)
Figure 36.14 The generation of transpirational pull in a leaf
![Page 30: Plant Anatomy and Transport chapters 35 and 36 --focus on sap flow--](https://reader030.vdocuments.net/reader030/viewer/2022032704/56649d3e5503460f94a16709/html5/thumbnails/30.jpg)
Figure 36.14 The generation of transpirational pull in a leaf
![Page 31: Plant Anatomy and Transport chapters 35 and 36 --focus on sap flow--](https://reader030.vdocuments.net/reader030/viewer/2022032704/56649d3e5503460f94a16709/html5/thumbnails/31.jpg)
Figure 36.11 Ascent of water in a tree
![Page 32: Plant Anatomy and Transport chapters 35 and 36 --focus on sap flow--](https://reader030.vdocuments.net/reader030/viewer/2022032704/56649d3e5503460f94a16709/html5/thumbnails/32.jpg)
Sap Flow in Plants
1. basic root structure2. water flow through the cortex cells3. the endodermis as a border crossing4. water flow in the xylem5. the fate of water in the leaf
—photosynthesis—transpiration
—stomate function6. sap flow and maple syrup
![Page 33: Plant Anatomy and Transport chapters 35 and 36 --focus on sap flow--](https://reader030.vdocuments.net/reader030/viewer/2022032704/56649d3e5503460f94a16709/html5/thumbnails/33.jpg)
STEPS IN STOMATE OPENING 1. Sun comes up.2. Photosynthesis depletes CO2, stimulating proton pump enzymes.3. Proton pump enzyme turns on. H+ moved out of guard cells by
active transport (ATP is used).4. K+ diffuses into cells via K+ channel enzymes.5. Water diffuses in to balance its concentration relative to K+6. Guard cells swell and change shape.
![Page 34: Plant Anatomy and Transport chapters 35 and 36 --focus on sap flow--](https://reader030.vdocuments.net/reader030/viewer/2022032704/56649d3e5503460f94a16709/html5/thumbnails/34.jpg)
Figure 36.2 A chemiosmotic model of solute transport in plant cells
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Figure 36.13a The mechanism of stomatal opening and closing
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Figure 36.13b The mechanism of stomatal opening and closing
![Page 37: Plant Anatomy and Transport chapters 35 and 36 --focus on sap flow--](https://reader030.vdocuments.net/reader030/viewer/2022032704/56649d3e5503460f94a16709/html5/thumbnails/37.jpg)
STEPS IN STOMATE OPENING 1. Sun comes up.2. Photosynthesis depletes CO2, stimulating proton pump enzymes.3. Proton pump enzyme turns on. H+ moved out of guard cells by
active transport.4. K+ diffuses into cells via K+ channel enzymes.5. Water diffuses in to balance its concentration relative to K+6. Guard cells swell and change shape.
![Page 38: Plant Anatomy and Transport chapters 35 and 36 --focus on sap flow--](https://reader030.vdocuments.net/reader030/viewer/2022032704/56649d3e5503460f94a16709/html5/thumbnails/38.jpg)
Sap Flow in Plants
1. basic root structure2. water flow through the cortex cells3. the endodermis as a border crossing4. water flow in the xylem5. the fate of water in the leaf
—photosynthesis—transpiration
—stomate function6. sap flow and maple syrup
![Page 39: Plant Anatomy and Transport chapters 35 and 36 --focus on sap flow--](https://reader030.vdocuments.net/reader030/viewer/2022032704/56649d3e5503460f94a16709/html5/thumbnails/39.jpg)
Maple sap is collected from the xylem in wood before leaves appear.
Link to treemet
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The osmotic theory of sap flow invokes the involvement of living cells and sucrose to generate an osmotic pressure difference between fibers and vessels, which are proposed to be separated by an osmotic barrier.
The secondary cell wall is an effective osmotic barrier for large molecules