purine

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英 { "us": "", "uk": "" }
数据源: ai_enrichment
嘌呤是一种含氮的杂环有机化合物,是构成核酸(如DNA和RNA)的重要碱基成分,也存在于某些食物中。

用法要点

名词用法

Purine通常作为可数名词使用,指代具体的嘌呤分子或类型,在化学和生物学语境中常见。

• a purine base
• purine metabolism
• high-purine foods

介词搭配

常与介词in、of、for等连用,表示存在、组成或用途,如in DNA、of nucleic acids、for synthesis。

• purine in DNA
• synthesis of purine
• precursors for purine

语域说明

主要用于学术、医学和营养学领域,日常对话中较少见,除非讨论健康或科学话题。

• medical research on purine
• dietary purine intake
• biochemical pathways of purine

基础例句

Foods like red meat are high in purine, which can affect health.

像红肉这样的食物嘌呤含量高,可能影响健康。

My doctor advised me to reduce purine intake to manage gout.

我的医生建议我减少嘌呤摄入以控制痛风。

Purine is a key component found in DNA and RNA molecules.

嘌呤是DNA和RNA分子中的关键成分。

高级例句

The study investigates purine metabolism disorders and their clinical implications.

这项研究探讨嘌呤代谢紊乱及其临床意义。

In biochemistry, purine biosynthesis is regulated by multiple enzymatic pathways.

在生物化学中,嘌呤的生物合成受多种酶途径调控。

The pharmaceutical company is developing inhibitors targeting purine receptors for therapeutic use.

这家制药公司正在开发靶向嘌呤受体的抑制剂用于治疗。

高频搭配

verb

synthesize purinemetabolize purinebreak down purineregulate purineinhibit purine

adjective

high-purinelow-purinepurine-richpurine-freeendogenous purine

noun

purine basepurine metabolismpurine synthesispurine contentpurine derivative

adverb

biochemically purineexcessively purinenaturally purine

preposition

purine in foodpurine of nucleic acidspurine for energy

phrase

purine and pyrimidinepurine nucleotidepurine salvage pathwaypurine biosynthesis

常见错误

❌ 错误:Purine is a vitamin.
✓ 正确:Purine is a nitrogenous base compound.

错误:嘌呤被误认为是维生素。正确:嘌呤是一种含氮碱基化合物,属于有机化学物质,不是维生素。

❌ 错误:I eat purine every day.
✓ 正确:I consume foods containing purine every day.

错误:直接说“吃嘌呤”不自然,因为嘌呤是食物中的成分。正确:应说“摄入含嘌呤的食物”,更符合英语表达习惯。

近义词辨析

nucleotide

核苷酸是包含嘌呤或嘧啶碱基的更大分子单位,而嘌呤特指碱基本身。

Adenine is a purine base that forms part of the nucleotide ATP.

alkaloid

生物碱是一类含氮有机化合物,常具有药理活性,而嘌呤是特定类型的含氮杂环,不一定是生物碱。

Caffeine is a purine alkaloid, but not all purines are alkaloids.