BSC 160 1nd Edition Lecture 7 Outline of Last Lecture 1 Hydrogen Bonds 2 Oxidation Reduction 3 Organic Compounds 4 Macromolecules Outline of Current Lecture 1 Organic Compounds Continued 2 Cell structure Organization 3 Prokaryotic Cells Functions Current Lecture Functional Groups of Organic Compounds Accessory molecules that bind to organic compounds Confer unique reactive properties on the whole molecule Stereochemistry Handedness Mirror images in shape Macromolecules Carbs Nucleotides Proteins Lipids Chapter 3 Cell Structure and Organization Plasma membrane Sense Respond Separate internal from external compartment Barrier gateway Prokaryotic Cell Types Bacteria Archaea Plants animals fungi Eukaryotic Cell Type Eucarya Regardless of cell type macromolecules make up all cells Ribosome Made up of nucleic acids proteins These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute Material of heredity Nucleic Acid is DNA regardless of cell type Table 22 1 in book Cell Smallest unit capable of sustaining life DNA transcription RNA translation Protein Tendency to be spherical All have Cytoplasm Surrounded by membrane Prokaryotic cell has 3 parts 1 External Appendages Flagella movement Pili Fimbriae Glycoalyx Outside surrounding portion Capsule slime layer 2 Cell envelope Cell wall cell membrane 3 InternalCytoplasmic matrix Ribosomes Inclusions nucleoid chromosome Actin cytoskeleton Endospore Membranes Phospholipids Proteins Functions Selective barrier gateway Transport o Facilitated diffusion High concentration Low concentration No energy expended diffusion only works by being carried by protein mostly sugar o Group translocation Proteins bind to target transport in modified o Active transport Low concentration High concentration Takes energy Enzymatic activity Membrane synthesis Macromolecular export Cell wall assembly Energy generation Phospholipids easily disassociate bc of water Proteins are integral Can interact on either side of membrane o Polar amino acids with polar amino acids nonpolar amino acids with nonpolar amino acids o Hydrophobic Scared of water o Hydrophilic Moves toward water Membranes Benefit over folded cell membrane More surface area
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