一、选择题 1.(C)2.(a)3.(C) 二、填空题(共10题20分) 1.1/4;1/2 2. PNH,: 3.9 MPa PN, 1.5 MPa PH,: 4.6 MPa 3.分子间的作用力,分子的体积

一、选择题(共40分,选择一个正确答案,将答案前的字母填在答卷纸上) 1.OH的共轭酸是: (a)H;(B)H2O;(C)H3O+;D)2 2.若动脉血的pH为7.40,[HCO3]=0.024mol/L,已知碳酸的 pKa1=6.38,pKa2=10.25,则[H2CO3]的浓度为: (A)2.3×10mol/L; (B)2.3×10mol/L; (C)4.6×10mol/L; (d)4.6×10-mol/

一、单项选择题或填空题(30分) 1.某人将一含SO42-的试液一分为二。甲份中加6mol/L的HCl溶液1ml乙份中加等浓度的HCl溶液10ml,再都用NaOH调至pH=.0,最后各加10ml同一浓度的BaCl2溶液。下列叙述中哪些是正确的? (A)两份溶液获得的BaSO4沉淀质量相等 (B)沉淀后的甲、乙两溶液中的[SO2Ba2+1乘积相等 (C)沉淀后的甲、乙两溶液中的沉淀离子的活度积相等; (D)沉淀后的甲、乙两溶液中的离子强度相等; (E)两溶液中的沉淀离子的活度积与溶度积相等

第一节 谷氨酰胺转胺酶发酵概述 第二节 谷氨酰胺转胺酶的摇瓶发酵条件研究 第三节 谷氨酰胺转胺酶分批发酵的 pH 值及温度控制策略 第四节 搅拌及溶氧浓度对谷氨酰胺转胺酶发酵过程的影响 第五节 茂原链轮丝菌的菌丝球形态与产酶之间的关系 第六节 谷氨酰胺转胺酶分批发酵过程中氨基酸代谢流分析

Color Atlas of Pharmacology 2nd edition, revised and expanded Heinz Lüllmann, M. D. Professor Emeritus Department of Pharmacology University of Kiel Germany Klaus Mohr, M. D. Professor Department of Pharmacology and Toxicology Institute of Pharmacy University of Bonn Germany Albrecht Ziegler, Ph. D. Professor Department of Pharmacology University of Kiel Germany Detlef Bieger, M. D. Professor Division of Basic Medical Sciences Faculty of Medicine Memorial University of Newfoundland St. John’s, Newfoundland Canada 164 color plates by Jürgen Wirth

一、选择题 1.0.40mol·dm3丙酸溶液的pH是(Ka=1.3×10-5)…() (A)0.40 (B)2.64 (C)5.28 (D)4.88

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

概述 门静脉高压症(portal hypertension,PH): 是指由各种原因引起的门静脉系统血流受阻和 (或)血流量增加,导致门静脉及其属支血管 压力升高,临床表现为脾大、门腔静脉侧支循 环形成和开放以及腹水。 ·正常门静脉压约在1.27~2.35kPa(13~ 24cmH2O)之间,平均为 1.76ka(18cmH2O)左右。门静脉高压时, 压力大都增至2.9~4.9kPa(30~ 50cmH20

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

Factors effecting the plant uptake 影响养分吸收的因素主要包括介质中的养分浓度、温 度、光照强度、士壤水分、通气状况、土壤pH值、养分离 子的理化性质、根的代谢活性、苗龄、生育时期植物体内养 分状况等