Bacterial Metabolism

Bacterial Metabolism - Metabolism is the sum of all...

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Metabolism is the sum of all chemical processes that occur in a cell. MICROBIAL METABOLISM " WE ARE WHAT WE EAT " METABOLISM IS THE STUDY OF WHAT LIVING ORGANISMS ARE CHEMICALLY AND HOW THEY USE THE RAW MATERIALS IN THE ENVIRONMENT TO LIVE, GROW AND REPRODUCE or SUM OF ALL REACTION IN A SYSTEM WHY DO WE STUDY METABOLISM OF BACTERIA? BECAUSE: Bacterial metabolism help us: Understand the mechanism of pathogenesis and treat bacterial diseases better Use bacteria in constructive ways i.e. commercially use Because o f the " UNITY OF BIOCHEMISTRY ", we understand what goes on in plants and animals. Many genes in bacteria are similar to those in PLANTS AND ANIMALS, INCLUDING MAN RULES OF METABOLISM 1. Metabolism has to do with acquiring and using energy EFFICIENCY . 2. Metabolism follows UNBREAKABLE physical laws. 3. CATABOLISM; Catabolic processes are those that result in large macromolecules being BROKEN DOWN into their smaller component parts. These small units may either be burned for energy or they may be used as building blocks for making new macromolecules 4. ANABOLISM; anabolic processes are those that use energy and simple building blocks to make NEW MACROMOLECULES for the cell ENZYMES Enzymes are proteins. Enzymes are the tools of life . Enzymes are designed to do the work of life. Each enzyme has ONE specific job to do. Enzyme job is catalysis in which, enzyme is not consumed by the reaction.
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Enzymes do EVERYTHING in a cell. Enzymes determine how a pathogen attacks a victim, and they determine how the host defends itself against a pathogen. Enzymes are responsible for EVERY thought, action, feeling, and emotion--everything we do! EVERY ENZYME IS UNIQUE and has only ONE JOB to do. HOW ENZYMES WORK Enzymes are ORGANIC CATALYSTS . A CATALYST is anything that speeds up a chemical reaction that otherwise is occurring slowly. One important characteristic of catalysts is that they are NOT USED UP or changed when catalyzing a chemical reaction, thus they are available to repeat the catalysis repeatedly. The explanation of what happens lies in the fact that most chemical reactions that RELEASE ENERGY ( exothermic reactions) require an INPUT of some energy to get them going. The initial input of energy is called the ACTIVATION ENERGY . Enzymes have the following characteristics: Enzymes WORK VERY FAST in that they carry out the reactions they're designed for 1,000s of times per second. Each enzyme has its own unique FUNCTIONAL STRUCTURE. This structure gives an enzyme the ability to BIND the molecule(s) it is designed to work on the SUBSTRATE(S). The names of enzymes almost always end in the suffix " ASE ", and scientists usually name enzymes according to the substrate they work on or the type of chemical reaction they catalyze. For example, prote ase s digest proteins ; lip ase s digest lipids or fats, DN ase s break down DNA . Some facts about enzymes:
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This note was uploaded on 11/27/2011 for the course MCB 2000 taught by Professor Staff during the Fall '08 term at University of Florida.

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Bacterial Metabolism - Metabolism is the sum of all...

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