MCB 150 1st Edition Lecture 3Outline of Last Lecture I. Classification of cellsII. Domains of lifeIII. Introduction to cells and moleculesIV. Bacterial structureOutline of Current Lecture V. Structures and functions of organelles in a Eukaryotic cellsVI. MacromoleculesCurrent LectureStructures and functions of organelles in a Eukaryotic (animal) cellPlasma Membrane: A phospholipid bilayer embedded with proteins. Basic function isto protect the cell from its surroundings while being selectively permeable, and letting the necessary nutrients inside the cell and expelling wasteNucleus: Center for the genetic material inside the cell. It is kept bond by the nuclear envelope, a double membrane that protects from the rest of the cell.Mitochondria: Location where the cell performs cellular respiration, a form of energy that powers the rest of the chemical reactions inside of the cellRough endoplasmic reticulum: Studded with ribosomes, the rough endoplasmic reticulum folds proteins so that they can be transported through the smooth endoplasmic reticulum and sent to the golgi apparatus. Smooth Endoplasmic reticulum: The smooth endoplasmic reticulum is a key part of lipid synthesis and forming secretory proteinsGolgi Body: integral in modifying, sorting and packaging macromolecules from the endoplasmic reticulum and preparing them to be sent out of and across the cell. Ribosomes: Link amino acids together while following directions from the rRNA strands and form the necessary proteins for the cell to function.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.Macromolecules:4 types of macromolecules:- Proteins- Nucleic Acid- Polysaccharides- LipidsPolymerization: bonding together of monomersCondensation: (dehydration synthesis) process of adding monomers while water molecules are removed. Hydrolysis: Process of removing monomers by adding water moleculesPolysaccharides: Made from condensation reactions bringing together monosaccharides, also referred to (Carbohydrates). They are used to store energy and form parts of cell
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