photosynthesis

• n. 光合作用

phot-,光，synthesis,合成作用。

1. synthesis of compounds with the aid of radiant energy (especially in plants)

photosynthesis (n.)

1898, loan-translation of German Photosynthese, from photo- "light" (see photo-) + synthese "synthesis" (see synthesis). Another early word for it was photosyntax.

[T]he body of the work has been rendered into English with fidelity, the only change of moment being the substitution of the word "photosynthesis" for that of "assimilation." This change follows from a suggestion by Dr. Barnes, made a year ago before the American Association at Madison, who clearly pointed out the need of a distinctive term for the synthetical process in plants, brought about by protoplasm in the presence of chlorophyll and light. He proposed the word "photosyntax," which met with favor. In the discussion Professor MacMillan suggested the word "photosynthesis," as etymologically more satisfactory and accurate, a claim which Dr. Barnes showed could not be maintained. The suggestion of Dr. Barnes not only received tacit acceptance by the botanists of the association, but was practically approved by the Madison Congress in the course of a discussion upon this point. ["The Botanical Gazette," vol. XIX, 1894]

It captures the energy which plants produce during photosynthesis, a process of converting sunlight into energy.

2016年12月四级真题（第二套）听力

The high rate of nitrogen and phosphorus is unfavourable to the photosynthesis of the phytoplankton.

过高的氮磷比不利于浮游植物进行光合作用.

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It may interfere with plant photosynthesis, causing ecological damage and reducing agricultural production.

它会影响植物的光合作用, 引起生态受损,降低农业产量.

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An example for plastids are chloroplasts, in which photosynthesis occurs.

质体的一个例子是发生光合作用的叶绿体.

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This process called photosynthesis sustains almost all life on Earth.

这个过程叫做光合作用,它使地球上几乎所有的生命得以维持.

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The photosynthesis and the azotaseactivity were decreased in Mo deficient soybean.

缺钼大豆的光合作用和固氮酶活性降低.

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Some of the carbon dioxide absorbed by plants during photosynthesis is radioactive.

植物在光合作用中吸收的一些二氧化碳具有放射性.

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Diurnal variation of photosynthesis of of F. pashannica seedlings was single peak type.

巴山水青冈幼苗的光合日变化为单峰型曲线.

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Meanwhile, the stomatal conductance was related to the net photosynthesis rate.

气孔导度与净光合速率具有相关性.

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By means of photosynthesis, plants convert the radiant energy of the sun into chemical energy.

通过光合作用, 植物将太阳的辐射能转为化学能.

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Photosynthesis is often limited by the rate of CO 2 diffusion from the atmosphere to the chloroplast.

CO2从大气中向叶绿体中的扩散经常限制光合作用的速率.

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Members of a group of mostly aquatic, photosynthetic organisms ( see photosynthesis ) that defy precise definition.

一群主要是水生的 、 能行 光合作用 而无法精确定义的有机体.

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The second reason light is important to organisms is that it is essential for photosynthesis.

光对于生物很重要的第二个原因是它对于光合作用极其重要.

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Have to provide water by photosynthesis of CO 2.

提供水草光合作用所须之CO2.

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If it were not for photosynthesis, the world would starve to death.

要不是由于光合作用, 世人就要饿死.

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Raw material can be energy that shows energy passes photosynthesis to store with biologic form.

生物质能是指太阳能通过光合作用以生物的形式储存的能量.

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The curve of diurnal variation of leaf photosynthesis showed two single peak.

随着灌水量的降低,其净光合速率日变化呈双峰曲线.

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Eventually, photosynthesis arrived in the form ofcyanobacteria.

起初, 陆地上大多是岩石和冰,后来,随着植被的出现,才形成了今天的地球.

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Photosynethically Available Radiation ( PAR ) is an important energy sources of photosynthesis for the green plants.

光合有效辐射(PhotosyntheticallyAvailableRadiation, 简称 PAR ) 是植物进行光合作用的重要能量来源.

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Diurnal changes in photosynthesis and transpiration of diseased wheat leaves with various severity were significantly different.

结果表明,不同严重度小麦病叶光合作用和蒸腾作用的日变化明显不同.

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Photosynthesis of mango seedlings treated with calcium were studied under soil drying stress.

研究了钙对土壤干旱条件下芒果幼苗光合作用的影响.

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Exogenous applications of indoleacetic acid, kinetin or gibberellic acid stimulate photosynthesis.

吲哚乙酸, 激动素或赤霉酸的外源施用刺激了光合作用.

辞典例句

For experimental purposes , scientists originally assumed that photoperiodism worked through photosynthesis.

为了进行实验, 科学家们最初曾经设想,光周期现象可能是通过光合作用实现的.

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The photosynthesis is the most important and photochemical process found in photosynthetic organisms in the nature.

光合作用是自然界中的有机生物吸收太阳光能并将其转化为稳定的化学能的重要途径.

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First, crops are grown, using the sunlight and carbon dioxide as food through photosynthesis.

第一, 植物通光合作用利用阳光和二氧化碳进行生长.

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Therewas an extremely significant positive correlation between the rate of photosynthesis and rate ofphotosynthate export.

光合速率与光合产物输出速率和光合产物输出百分率成显著正相关.

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