MCB 150 1st Edition Lecture 3 Outline of Last Lecture I Classification of cells II Domains of life III Introduction to cells and molecules IV Bacterial structure Outline of Current Lecture V Structures and functions of organelles in a Eukaryotic cells VI Macromolecules Current Lecture Structures and functions of organelles in a Eukaryotic animal cell Plasma 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 waste Nucleus 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 cell Rough 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 proteins Golgi 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 Lipids Polymerization bonding together of monomers Condensation dehydration synthesis process of adding monomers while water molecules are removed Hydrolysis Process of removing monomers by adding water molecules Polysaccharides Made from condensation reactions bringing together monosaccharides also referred to Carbohydrates They are used to store energy and form parts of cell structure