Enzymes act as catalysts because they A are composed of proteinB act on all substratesC raise energy inputD lower energy input 扫码下载作业帮搜索答疑一搜即得 答案解析 查看更多优质解析 解答一 举报 D题目问的是“酶为什么会起催化作用:A有蛋白质组成;B对所有底物起作用;C提高输入能量;D降低输入能量...
Enzymes act as catalysts for the chemical reactions that occur in living organisms, allowing reactions to occur in the milliseconds necessary to maintain lifeTube ATube BTube C
In the first case, the plants provide the bacteria with carbohydrates and other organic compounds, and the bacteria have enzymes that act as catalysts that eventually add nitrogen to the soil, enriching it. 问题 句子分析(俗称“长难句分析”)是训练提高基础阅读能力的有效手段。我们通过对托福(TOEFL...
Enzymes act as catalysts whose function is to make or break covalent bonds that otherwise could only be created or destroyed under conditions of temperature and pH that are incompatible with life. Catalysts act by reducing the stability of bonds and lowering the amount of energy required to break...
State Standard SB1B - Explain how enzymes act as catalysts. Physical vs. Chemical A physical change alters the substance’s appearance but not its composition. There is no formation of a new substance. 6.2 Chemical Reactions Chemistry in Biology Physical reaction Chapter 6 ...
Enzymes: Globular proteins which act as catalysts of chemical reactions. Active site: Region on the surface of an enzyme to which substrates bind and which catalyses a chemical reaction involving the substrates. 小的那个是substrate,大的是enzyme ...
enzymes act as biological catalysts (biocatalysts). catalysts accelerate chemical reactions. the molecules upon which enzymes may act are called substrates, and the enzyme converts the substrates into different molecules known as products. almost all metabolic processes in the cell need enzyme catalysis...
These enzymes act as bio-catalysts to perform reactions in bio-processes in an economical and environmentally-friendly way as opposed to the use of chemical catalysts. The special characteristics of enzymes are exploited for their commercial interest and industrial applications, which include: tolerance...
ⅡSamplesofA-LEVELbiologyexaminationforanalying1explainthatenzymesareglobularproteinsthatcatalysemetabolicreactions;Enzymesareglobularproteins,whichactascatalystsbyloweringactivationenergy,withhydrophilicRgroupsontheoutsideofthemoleculeensuringthattheyaresoluble.2explainthemodeofactionofenzymesintermsofanactivesite,enzyme/...
1. Definition Enzymes are Biological catalysts that increase the speed of biochemical reactions without any changes. Hormones are molecules like steroids (testosterone/estrogen) or peptides (insulin) produced by a part of an organism and send messages to other organs or tissues for cellular reactions...