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北京石油化工学院2026年研究生招生接收调剂公告
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zhujian1985

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[交流] 【求助】求助生物专业人士帮做英文生物题目 已有1人参与

我是化学类专业的学生,老师帮我们搞了个国际的远程生物硕士,生物类的题目确实不知道怎么做,求助!望好心人帮我解答
1What are legislation and control of natural flavours authenticity of vanilla? Justify your answer by describing two techniques or methods which were developed for checking the origin of vanillin.


2 describe the enzymatic mechanisms of the “dissimilative” reduction of sulphate in bacteria.

3 what are the main physical properties of phenols and their derivatives(be carefull: not acid-base or nucleophilic properties).

4 develop two examples of applications of aromatic compounds in the field of biotechnological agribusiness beverages(tea ,beer , wine,…….)or cosmetics (be carefull: not using olives and not in the field of nutrients & health ).give your own arguments “in favour of ”and “against” these kind of compounds for the human society.
5计算题
A fungal strain growing on glucose produces citric acid (C6H8O7).the average composition of fungal biomass is C:47%,H:6.9%,O:2.19%,N:0.57%. the biomass yield is 0.09g/g and the citric acid yield is 0.86g/g versus glucose.
What are the oxygen uptake rate and CO2 production rate when the growth rate is 0.4/h and the biomass 9g/L?
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吃小虫的鸡

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好难啊看上去,不太会
2楼2010-05-05 16:44:26
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