20: Photosynthesis and Carbohydrate Synthesis in Plants
- Page ID
- 15052
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- 20.1: Light Absorption in Photosynthesis - An Overview
- This page addresses the complex processes of photosynthesis, focusing on the roles of the Light Harvesting Complex (LHC) and Photosystem II (PSII). It covers the absorption of light, the structure and function of various components, and the generation of energy in the form of ATP and NADPH. These processes involve intricate reactions, including charge separation and electron transfer, to convert solar energy into chemical energy.
- 20.2: The Kok Cycle and Oxygen Evolving Complex of Photosystem II
- This page provides a comprehensive overview of the electron transport chain in photosynthesis, particularly focusing on the mechanisms and structures involved in Photosystem II and Photosystem I. It covers the Z scheme of electron flow, the role and structure of the oxygen-evolving complex (OEC), and the Kok cycle for water oxidation.
- 20.3: Plant Electron Transport and ATP Synthesis
- The page provides a detailed overview of photosynthetic electron transport and ATP synthesis, emphasizing the biochemical processes and structures involved in energy conversion in chloroplasts. Key topics include the flow of electrons from Photosystem II through cytochrome b6f and Photosystem I, leading to ATP and NADPH production.
- 20.4: CO₂ uptake - Calvin Cycle and C3 organisms
- The document provides a comprehensive overview of the biochemical processes involved in the photosynthesis of C3 plants, focusing on the Calvin Cycle, the structure and function of Rubisco, and the regulatory mechanisms that optimize carbon assimilation.
- 20.5: CO2 uptake - C4 and CAM Pathways
- This page provides a comprehensive exploration of C4 and CAM photosynthesis pathways, emphasizing their spatial and temporal separation of CO2 fixation for adapting to environments with high temperatures or water scarcity. It details the mechanisms and key enzymes involved in the C4 and CAM pathways, such as phosphoenolpyruvate carboxylase and pyruvate orthophosphate dikinase, and discusses the role and structure of carbonic anhydrase.
- 20.6: Biosynthesis of Starch, Sucrose and Cellulose
- This page provides in-depth information on carbohydrate biosynthesis in plants, focusing on sucrose, starch, and cellulose. It describes the roles of these carbohydrates, their biosynthetic pathways, and the involved enzymes, particularly glycosyltransferases. The regulation of sucrose biosynthesis, mechanisms of glycosyltransferases, and structure-function relationships of enzymes like sucrose synthase and starch synthase are discussed.