zinc

简明释义

英[zɪŋk]美[zɪŋk]

n. 锌；（非洲某些地方用于搭建屋顶、棚子等的）波纹铁板，瓦楞铁板

v. （为防锈而）镀锌于（铁）

复 数 z i n c s

第 三 人 称 单 数 z i n c s

现 在 分 词 z i n c i n g 或 z i n c k i n g

过 去 式 z i n c e d 或 z i n c k e d

过 去 分 词 z i n c e d 或 z i n c k e d

英英释义

单词用法

同义词

反义词

例句

1.Zinc and protein intakes are adequate.

锌和蛋白质摄入量是足够的。

2.Raspberries contain a little more protein, iron and zinc.

树莓含有更多的蛋白质、铁和锌。

3.The ions exchange between calcium ions and zinc ions would influence the binding ability of zinc ion in D-mannuronic acid units.

钙锌离子交换会影响锌离子与甘露糖醛酸片段的结合。

4.The deficiency of zinc may lead to hypogonadal dwarfs.

缺锌可能会导致性腺机能减退型侏儒。

5.Patients with pelada have lower levels of zinc and copper in their hair.

斑秃患者头发中锌和铜低于正常人。

6.This is a copper-zinc deposit in Uchaly.

这是一个在乌恰雷的铜锌矿。

7.When zinc sulfide is hit by particles or by anything, by radiation or by particles of greater than certain critical energy, there is a glow.

当硫化锌被粒子或任何东西、辐射或大于某一临界能量的粒子撞击时，就会发出辉光。

8.Two zinc electrodes.

俩锌电极。

9.Barium peroxide and zinc dust.

过氧化钡加锌粉。

10.Many batteries use zinc as an essential component.

许多电池使用锌作为重要成分。

11.The fence was coated with zinc to prevent rusting.

这道围栏涂上了锌以防生锈。

12.The doctor recommended taking a supplement that contains zinc for better immunity.

医生建议服用含有锌的补充剂以增强免疫力。

13.Farmers often add zinc to animal feed to promote growth.

农民通常在动物饲料中添加锌以促进生长。

14.The roofing material is made of zinc for durability.

屋顶材料由锌制成，以提高耐用性。

作文

Zinc is a vital trace element that plays a significant role in various biological processes. It is essential for the functioning of numerous enzymes and is involved in DNA synthesis, immune function, and protein metabolism. The importance of zinc（锌） cannot be overstated, as it contributes to overall health and well-being. In this essay, I will explore the various roles of zinc（锌） in our body, the sources from which we can obtain it, and the consequences of zinc（锌） deficiency.Firstly, zinc（锌） is crucial for the immune system. It helps in the development and function of immune cells such as neutrophils and natural killer cells. Studies have shown that individuals with adequate levels of zinc（锌） tend to have a stronger immune response and are less susceptible to infections. This is particularly important in regions where infectious diseases are prevalent. Furthermore, zinc（锌） has been linked to wound healing, as it promotes cell division and growth, making it essential for recovery from injuries.In addition to its role in immunity, zinc（锌） is also involved in the synthesis of proteins and DNA. It acts as a cofactor for over 300 enzymes that facilitate biochemical reactions in the body. For instance, zinc（锌） is necessary for the activity of RNA polymerase, an enzyme that plays a critical role in transcription, the process by which genetic information is copied from DNA to RNA. Without sufficient zinc（锌）, these processes can be impaired, leading to various health issues.Sources of zinc（锌） include both animal and plant-based foods. Rich sources of zinc（锌） include meat, shellfish, legumes, seeds, nuts, dairy products, and whole grains. However, the bioavailability of zinc（锌） in plant-based foods is often lower due to the presence of phytates, which can inhibit its absorption. Therefore, vegetarians and vegans may need to pay special attention to their zinc（锌） intake and consider fortified foods or supplements if necessary.The consequences of zinc（锌） deficiency can be severe. Symptoms may include weakened immune function, hair loss, diarrhea, delayed wound healing, and even growth retardation in children. In severe cases, zinc（锌） deficiency can lead to more serious health complications such as hypogonadism and cognitive impairments. It is estimated that around 2 billion people worldwide suffer from zinc（锌） deficiency, particularly in developing countries where access to nutrient-rich foods is limited.In conclusion, zinc（锌） is an essential mineral that plays a critical role in various bodily functions, including immune response, protein synthesis, and DNA production. Ensuring adequate intake of zinc（锌） through a balanced diet is vital for maintaining good health. Awareness of the importance of zinc（锌） and its sources can help prevent deficiency and promote overall well-being. As we continue to learn more about the significance of micronutrients like zinc（锌）, it becomes increasingly clear that they are fundamental to our health and longevity.

锌是一种重要的微量元素，在各种生物过程中发挥着重要作用。它是许多酶功能所必需的，并且参与DNA合成、免疫功能和蛋白质代谢。锌（zinc）的重要性不容小觑，因为它有助于整体健康和福祉。在这篇文章中，我将探讨锌（zinc）在我们身体中的各种角色、我们可以从中获取的来源以及锌（zinc）缺乏的后果。首先，锌（zinc）对免疫系统至关重要。它有助于免疫细胞的发展和功能，如中性粒细胞和自然杀伤细胞。研究表明，锌（zinc）水平充足的个体往往具有更强的免疫反应，较少受到感染。这在传染病流行的地区尤为重要。此外，锌（zinc）与伤口愈合有关，因为它促进细胞分裂和生长，使其在伤后恢复中至关重要。除了在免疫中的作用外，锌（zinc）还参与蛋白质和DNA的合成。它作为300多种酶的辅因子，促进身体内的生化反应。例如，锌（zinc）是RNA聚合酶活性的必要成分，这是一种在转录过程中发挥关键作用的酶，即将遗传信息从DNA复制到RNA的过程。没有足够的锌（zinc），这些过程可能会受到损害，导致各种健康问题。锌（zinc）的来源包括动物和植物性食物。锌（zinc）的丰富来源包括肉类、贝类、豆类、种子、坚果、乳制品和全谷物。然而，植物性食物中锌（zinc）的生物利用度通常较低，因为存在植酸，会抑制其吸收。因此，素食者和严格素食者可能需要特别关注他们的锌（zinc）摄入，并考虑必要时补充强化食品或补剂。锌（zinc）缺乏的后果可能是严重的。症状可能包括免疫功能减弱、脱发、腹泻、伤口愈合延迟，甚至儿童的生长迟缓。在严重情况下，锌（zinc）缺乏可能导致更严重的健康并发症，如性腺功能减退和认知障碍。据估计，全球约有20亿人遭受锌（zinc）缺乏，尤其是在发展中国家，营养丰富的食物获取有限。总之，锌（zinc）是一种必需矿物质，在免疫反应、蛋白质合成和DNA生产等各种身体功能中发挥着关键作用。通过均衡饮食确保足够的锌（zinc）摄入对于维持良好的健康至关重要。提高对锌（zinc）重要性及其来源的认识，可以帮助预防缺乏并促进整体健康。随着我们继续了解微量营养素如锌（zinc）的重要性，越来越清楚它们是我们健康和长寿的基础。