See hemoglobin.参阅hemoglobin。...[继续阅读]
海量资源,尽在掌握
See hemoglobin.参阅hemoglobin。...[继续阅读]
The chief carbohydrate foodreserve of the brown algae. It is a solublepolymer of glucose.主要贮存在褐色藻类的糖类食物,是一种可溶性的多聚葡萄糖。...[继续阅读]
A measure of the concentrationof solutions based upon the number of mol-ecules or ions present,rather than on themass of solute,in any particular volume ofsolution. The molarity (M) is the numberof moles of solute in one cubic decimeter(liter).在特定体积的溶液中,测...[继续阅读]
The maintenance of a con-stant internal environment by an organism.It enables cells to function more efficiently.Any deviation from this balance results inreflex activity of the nervous and hormonesystems,which tend to negate the effect.The degree to whic...[继续阅读]
A photosynthetic plastid contai-ning chlorophyll and other PHOTOSYN-THETIC PIGMENTS. It is found in allphotosynthetic cells of plants and protocti-sts but not in photosynthetic prokaryotes.It has a membrane system containing thephotosynthetic pigments on ...[继续阅读]
A hormone,produced by the anterior pi-tuitary gland,that stimulates the thyroidgland to release thyroxine. The level ofthyroxine controls thyrotropin release by anegative feedback mechanism.一种由垂体前叶分泌的能刺激甲状腺素释放的激素。甲状腺素通过负反馈调节其分泌。...[继续阅读]
The transfer of a tissueor organ from one part of an animal to an-other part or from one individual to anoth-er. See also graft.将组织或器官从一个动物身上转移到另一个动物身上,或从一个动物身上的一个部位移到另一个部位。参阅graft。...[继续阅读]