Plant Biochemistry B203 Lipids PDF

Summary

This document is a lecture or study guide on plant biochemistry, specifically focused on lipids. It covers the composition, solubility, functions, and types of lipids, providing a detailed overview of this biological topic. The document is intended for biotechnology students at the university level.

Full Transcript

Course title: Plant Biochemistry Couse Code: B203 Second Level Biotechnology Students Instructor Identification and contact Card Dr. Mustafa Ismaeil Elnajar lecturer of plant physiology - Botany Department - Faculty of Science...

Course title: Plant Biochemistry Couse Code: B203 Second Level Biotechnology Students Instructor Identification and contact Card Dr. Mustafa Ismaeil Elnajar lecturer of plant physiology - Botany Department - Faculty of Science Mansoura University E-mail: [email protected] Researchgate: https://www.researchgate.net/profile / Mustafa-Elnajar Phone number (whatsapp): +2 Lipids:- Macro-molecules that contain hydrocarbons. Make up the structural and functional building Overview of units of the living cells. Study Plan Lipids Composition of lipids:- Lipids composition is mainly hydrocarbons. Highly reduced forms of carbon. -:Examples of lipids  Fats  Oils  Waxes  Certain vitamins Solubility of lipids:- Lipids are non-polar molecules and are not soluble in water, which is a polar environment. Solubility Study Plan Lipids are soluble in non-polar solvents such as Lipid chloroform, acetone, or ether. In plants, lipids are stored as energy reserves primarily in seeds and fruits, providing vital energy Functions of for germination and growth. Study Plan 2. Forming a part of membranes around the Lipids cells. Lipids make up the bilayer of plant cell membranes, essential for maintaining cell integrity and regulating nutrient and water uptake. 3. Precursors of hormones and vitamins. Lipids in plants are critical precursors for the biosynthesis of Fats and oils (Triacylglycerol or triglycerides) are made from two kinds of molecules Glycerol 3 fatty acids Fats and Study Plan 1,2 ,3 t r ih y d r o x y p r o pane Ester bond oils + 3 H2O Glycerol 3 fatty acids A fat (Triglyceride) Fatty acids are Amphipathic molecules The amphipathic nature of fatty acids; means that Fatty acids they contain both hydrophilic regions (polar head Study Plan Nature group = carboxyl group) and hydrophobic regions (the long hydrophobic chain). Study Plan Fatty acids Nature Study Plan Types of Fatty Acids Study Plan saturated VS. unsaturated fatty acids Study Plan monounsaturated VS. polyunsaturated fatty acids Study Plan monounsaturated VS. polyunsaturated fatty acids Study Plan Cis and Trans Bonds in Unsaturated Fatty Acids Study Plan Disadvantages of unsaturated fatty acids Study Plan Disadvantages of unsaturated fatty acids Why Trans Fatty acids bonds ?Search questions are carcinogenic?! Study Plan Why Cis fatty acids considered healthier than trans fatty acids?! Study Plan Plant and animal fatty acids Study Plan Lipid Nomenclature Study Plan Types of lipids

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