Effect of environmental factors on growth Water availability, pH, temperature, oxygen concentration, pressure, radiation, and a number of other environmental factors influence microbial growth. Yet many microorganisms, and particularly bacteria, have managed to adapt and flourish under environmental extremes that would destroy most organisms

Chapter 10 Microbial Ecology 10.1 Microorganisms in nature ecosystem 10.2 Microbial population interactions 10.3 Biogeochemical cycles 10.4 Plant-microbe interactions 10.5 Bioremediation

Microbial growth Conditions 1. Macronutrients 2. Micronutrients 3. Growth factors 4. Environmental factors: temperature; pH; Oxygen et al Nutrient requirements Microorganisms require a bout ten elements in large quantities, bec

Control of microorganisms by physical and chemical agents frequently used terms Sterilization: the process by which all living cells, viable spores, virus, and viroids are either destroyed or removed from an object or habitat

1. Differences between prokaryotes/eukaryotes 2. Shape and arrangement 3. Procaryoic cell organization

介绍核酸的分类和化学组成, 重点讨论DNA和RNA的结构特征,初步认识核酸 的结构特征与其功能的相关性;介绍核酸的主 要理化性质和核酸研究的一般方法

目的与要求:通过本章学习,要求掌握生 物膜的结构特点和功能。生物膜在生命活动中 的功能是多方面的,其主要功能是:物质运输 功能,能量转换功能和信号转导功能

维生素( vitamin)是是参与生物生长发育和代谢所必需 的一类微量有机物质。这类物质由于体内不能合成或者合成 量不足,所以必需由食物供给。已知绝大多数维生素作为酶 的辅酶或辅基的组成成分,在物质代谢中起重要作用。机体 缺乏维生素时,物质 vitamin生障碍,引起维生素缺乏症

介绍酶的概念、作用特点 和分类、命名,讨论酶的结构特征和催化 功能以及酶专一性及高效催化的策略,进 而讨论影响酶作用的主要因素。对酶工程 和酶的应用作一般介绍

SBA-40型谷氨酸(乳酸)-葡萄糖双功能分析仪 仪器处在随时通 电状态,测定时 按一下开关