PPT-PBIO 691: Seminar (Plant Cell Walls)

Dr Allan Showalter Department of Environmental amp Plant Biology Molecular and Cellular Biology Program Ohio University Athens OH 45709 Introduction There are three major regions of the wall . Herbivory. : (continued). Rumination. Fluid feeders. Holstein cow: milk cow (left); Beef cow (right). They have been artificially selected for very different traits: basically to produce milk or to produce steaks. They have not been selected to deal with their ancestral predators.. Protists. (Algae). Autotrophs. – . photosynthetic. , have . chloroplasts. , all have chlorophyll a. Classified by . pigment. types / color group, food storage, cell wall composition (7 phyla). Produce most . 10.4 Plant Cell Structure. Plant Cell Structure. Learning Objectives. There are fundamental differences between plant cells and animal cells.. The structure of a palisade cell from a leaf as seen with an optical microscope.. Lab 11. Plant Tissues. Tissues. A group of closely associated cells that perform related functions and are similar in structure.. Plant Tissues can classified into. :. Meristematic tissues . .. Permanent tissues.. What’s the attraction?. Plants are a rich source of nutrients for many organisms including bacteria, fungi, protoctista, insects, and vertebrates…. Do plants have an immune system?. Plants do not have an immune system comparable to animals…. Section 1. Specialized Plant Cells. Remember plant cells have unique structures. Cell wall. Central vacuole. 3 types of specialized plant cells. Parenchyma. Collenchyma. Sclerenchyma. . Paranchyma “puh-REN-kuh-muh”. Chen. Department of Chemistry and Biochemistry. PBIO 691 9-24-2010. Basic questions about something “NEW”:. PBIO 691 9-24-2010. 1. What is it?. 5. What can I do with it?. 4. What does it do?. 2. Where do I find it?. Cell membrane is like the doors on a car. They regulate what goes in/out.. The cell wall in a plant cell is like the frame on a car. The frame supports the car as the cell wall supports the plant.. The endoplasmic reticulum is like the fuel lines on a car. It lets a passage way for fuel to flow like proteins do in the endoplasmic reticulum . Unit Objectives. 1: Explain the structures of plant cells and important cell processes.. a. Describe the structures of a typical plant cell and their functions.. b. Compare and contrast mitosis and meiosis.. Cell membrane is like the doors on a car. They regulate what goes in/out.. The cell wall in a plant cell is like the frame on a car. The frame supports the car as the cell wall supports the plant.. The endoplasmic reticulum is like the fuel lines on a car. It lets a passage way for fuel to flow like proteins do in the endoplasmic reticulum . a linear polymer of approximately 2800 D-glucose units per molecule joined by . b. -1,4-glycosidic bonds. fully extended conformation with alternating 180° flips of glucose units. extensive intra- and intermolecular hydrogen bonding between chains. Cell Membrane. Cell Wall. Cytoplasm. Chloroplasts. Mitochondria. Nucleus. Vacuole. DRAW this table…. DRAW this table…. Plant Cell. Animal Cell. cytoplasm. chloroplast. vacuole. Cell. membrane. nucleus. Cell adhesion. , cell junctions and extra cellular matrix organelles. Gram-negative. Gram-positive and Gram-negative bacteria cell walls are peptidoglycan, which is a linear polysaccharide chains, that are cross linked with strong covalent bond.. Cell Wall: Walls of a the Restaurant . The walls of a restaurant give the building structure and support just like the cell wall gives the plant protection and support.. Chloroplasts: Solar Panels in some “Green” Restaurants .