trace element

简明释义

微量元素

英英释义

例句

1.Zinc is a vital trace element 微量元素 for human health, involved in immune function and wound healing.

锌是对人类健康至关重要的微量元素，参与免疫功能和伤口愈合。

2.The presence of trace elements 微量元素 in water can indicate pollution levels.

水中存在的微量元素可以指示污染水平。

3.Copper is another trace element 微量元素 that is necessary for various enzymatic reactions in the body.

铜是另一种微量元素，对体内各种酶反应是必要的。

4.Iron is an essential trace element 微量元素 that plays a crucial role in the production of hemoglobin.

铁是一种必需的微量元素，在血红蛋白的生成中起着至关重要的作用。

5.Many soils lack sufficient trace elements 微量元素, which can lead to poor plant growth.

许多土壤缺乏足够的微量元素，这可能导致植物生长不良。

作文

Trace elements, also known as microelements, are essential nutrients that the body requires in very small amounts to function properly. Despite being present in minute quantities, these trace elements play a crucial role in various biological processes. For instance, elements like iron, zinc, and selenium are vital for maintaining our health and well-being. In this essay, we will explore the importance of trace elements, their sources, and the consequences of their deficiency in our diet.Firstly, let’s discuss the significance of trace elements. They are involved in numerous biochemical reactions and are necessary for the synthesis of enzymes and hormones. Iron, one of the most well-known trace elements, is critical for the production of hemoglobin, which carries oxygen in the blood. Without sufficient iron, individuals may suffer from anemia, leading to fatigue and weakness. Similarly, zinc plays a vital role in immune function, wound healing, and DNA synthesis. A deficiency in zinc can result in a weakened immune response and increased susceptibility to infections.Furthermore, selenium is another important trace element that acts as an antioxidant, protecting cells from damage caused by free radicals. Research has shown that adequate selenium levels can reduce the risk of chronic diseases, including certain types of cancer and cardiovascular diseases. This highlights the importance of incorporating foods rich in trace elements into our diets.Now, let’s examine the sources of these essential nutrients. Many foods contain trace elements, and a balanced diet typically provides sufficient amounts. Animal products, such as meat, fish, and dairy, are excellent sources of iron and zinc. For vegetarians and vegans, legumes, nuts, seeds, and whole grains can also provide these essential nutrients, although they might need to be consumed in larger quantities to meet daily requirements. Additionally, fruits and vegetables contribute to our intake of trace elements, particularly those grown in mineral-rich soils.However, despite the availability of these nutrients, many people still experience deficiencies. Factors such as poor dietary choices, soil depletion, and certain medical conditions can lead to inadequate intake of trace elements. For example, individuals with gastrointestinal disorders may have difficulty absorbing nutrients, resulting in deficiencies even if they consume a seemingly healthy diet. It is crucial to recognize the signs of trace element deficiencies, such as hair loss, brittle nails, and impaired immune function, and seek medical advice if needed.In conclusion, trace elements are indispensable for our health, and their importance cannot be overstated. Ensuring that we consume a variety of foods rich in these essential nutrients is vital for maintaining optimal health. By understanding the roles of trace elements and addressing potential deficiencies, we can take proactive steps towards improving our overall well-being. As we continue to learn more about nutrition and its impact on our health, it becomes increasingly clear that every small component, including trace elements, contributes to the larger picture of human health.

微量元素，也称为微量营养素，是身体所需的必需营养素，虽然只需极小的量，但却对身体正常运作至关重要。尽管它们在体内的含量微乎其微，这些微量元素在各种生物过程中扮演着关键角色。例如，铁、锌和硒等元素对于维持我们的健康和幸福至关重要。在这篇文章中，我们将探讨微量元素的重要性、来源以及缺乏这些元素对我们饮食的影响。首先，让我们讨论微量元素的重要性。它们参与许多生化反应，并且是合成酶和激素所必需的。铁是最著名的微量元素之一，对于血红蛋白的生产至关重要，而血红蛋白负责将氧气运输到全身。如果铁摄入不足，个体可能会患上贫血，导致疲劳和虚弱。同样，锌在免疫功能、伤口愈合和DNA合成中也发挥着重要作用。锌的缺乏可能导致免疫反应减弱，增加感染的易感性。此外，硒是另一个重要的微量元素，它作为抗氧化剂，保护细胞免受自由基造成的损害。研究表明，适量的硒水平可以降低慢性疾病的风险，包括某些类型的癌症和心血管疾病。这强调了将富含微量元素的食物纳入我们饮食的重要性。现在，让我们看看这些必需营养素的来源。许多食物都含有微量元素，均衡的饮食通常能提供足够的量。动物产品，如肉类、鱼类和乳制品，是铁和锌的优质来源。对于素食者和严格素食者来说，豆类、坚果、种子和全谷物也可以提供这些必需营养素，尽管他们可能需要摄入更大数量以满足每日需求。此外，水果和蔬菜也有助于我们摄取微量元素，特别是那些在矿物质丰富的土壤中生长的作物。然而，尽管这些营养素的供应充足，许多人仍然会经历缺乏。饮食选择不当、土壤耗竭和某些医疗条件等因素可能导致微量元素摄入不足。例如，患有胃肠道疾病的个体可能难以吸收营养，即使他们的饮食看似健康，也可能导致缺乏。识别微量元素缺乏的迹象至关重要，例如脱发、指甲脆弱和免疫功能受损，并在必要时寻求医疗建议。总之，微量元素对我们的健康不可或缺，它们的重要性不容小觑。确保我们摄入多样化的富含这些必需营养素的食物对于维持最佳健康至关重要。通过了解微量元素的作用并解决潜在的缺乏问题，我们可以采取积极措施改善整体健康。随着我们对营养及其对健康影响的不断了解，越来越清楚的是，每一个小组成部分，包括微量元素，都对人类健康的整体图景有所贡献。