lipids

简明释义

英[ˈlɪpɪdz]美[ˈlɪpɪdz]

n. 脂肪，油脂；[生化]脂类（lipid 的复数）

英英释义

单词用法

同义词

反义词

例句

1.The drugs do have side effects, but patients would much rather have weight gain and elevated lipids so that their brain could function normally.

药物确实有副作用，但是患者宁愿有体重增加和高血脂，也不要他们的大脑工作异常。

2.The ability of the tissue to absorb lipids and keep the rest of the body safe thus drops.

脂肪组织摄取脂类的能力以及连结身体其余局部安全的能力也随着下降。

3.Lipids are fats that are found throughout the body.

油脂就是遍布全身的脂肪。

4.Know your blood lipids: Raised blood cholesterol and abnormal blood lipids increase the risk of heart attacks and strokes.

了解你的血脂：血胆固醇升高和血脂异常会增加心脏病发作和中风的风险。

5.International Diabetes: Does pioglitazone have more favorable effects on serum lipids than rosiglitazone?

《国际糖尿病》：吡格列酮对血脂的作用是否优于罗格列酮？

6.One example is that lipids spontaneously form liposomes, the hollow bilayered vesicles that must have yielded the cell membrane.

一个例子是脂质自发形成脂质体，这种中空双层囊泡必须让出细胞膜。

7.The body stores excess energy in the form of lipids.

身体以脂质的形式储存多余的能量。

8.Certain lipids are essential for building cell membranes.

某些脂质对于构建细胞膜是必不可少的。

9.A diet high in saturated lipids can lead to heart disease.

富含饱和脂质的饮食可能导致心脏病。

10.Some lipids act as signaling molecules in the body.

一些脂质在体内作为信号分子发挥作用。

11.Avocados are a great source of healthy lipids.

鳄梨是健康脂质的极佳来源。

作文

Lipids are a diverse group of organic compounds that are insoluble in water but soluble in organic solvents. They play crucial roles in biological systems, serving as structural components of cell membranes, energy storage molecules, and signaling molecules. Understanding the function and importance of lipids (脂质) is essential for anyone studying biology, nutrition, or health sciences. One of the primary functions of lipids (脂质) is their role in forming cell membranes. The cell membrane is composed of a bilayer of phospholipids, which are a type of lipid (脂质). This structure allows cells to maintain a distinct internal environment, separate from the external surroundings. The hydrophobic (water-repelling) tails of the phospholipids face inward, while the hydrophilic (water-attracting) heads face outward. This arrangement creates a semi-permeable membrane that controls the movement of substances in and out of the cell, allowing it to maintain homeostasis. Another significant role of lipids (脂质) is energy storage. Fats, which are a type of lipid (脂质), provide a concentrated source of energy for the body. When the body requires energy, it can break down these stored fats through a process called lipolysis. This process releases fatty acids, which can be used by various tissues for energy production. Furthermore, lipids (脂质) also serve as insulation and protection for vital organs, helping to regulate body temperature and cushion against physical trauma. In addition to their structural and energy storage functions, lipids (脂质) are also involved in cellular signaling. Certain types of lipids (脂质), such as steroid hormones, act as signaling molecules that regulate various physiological processes. For example, cholesterol, a type of lipid (脂质), is a precursor for the synthesis of steroid hormones like testosterone and estrogen. These hormones play essential roles in regulating metabolism, immune response, and reproductive functions. Moreover, lipids (脂质) are vital for the absorption of fat-soluble vitamins (A, D, E, and K). These vitamins require lipids (脂质) for proper absorption in the digestive tract. Without adequate dietary lipids (脂质), individuals may suffer from deficiencies in these essential vitamins, leading to various health issues. The study of lipids (脂质) extends beyond biology and nutrition; it has significant implications in medicine and health. For instance, imbalances in lipid (脂质) levels in the body can lead to conditions such as obesity, cardiovascular disease, and diabetes. High levels of low-density lipoprotein (LDL) cholesterol, often referred to as 'bad cholesterol,' can increase the risk of heart disease, while high levels of high-density lipoprotein (HDL) cholesterol, known as 'good cholesterol,' can reduce this risk. In conclusion, lipids (脂质) are essential biomolecules that perform a multitude of functions in living organisms. Their roles in forming cell membranes, storing energy, signaling, and aiding in vitamin absorption highlight their importance in maintaining overall health. A deeper understanding of lipids (脂质) not only enriches our knowledge of biological processes but also emphasizes the significance of a balanced diet that includes healthy sources of lipids (脂质). As research continues to evolve, the implications of lipids (脂质) in health and disease will undoubtedly remain a critical area of study.

脂质是一类多样的有机化合物，水中不溶但在有机溶剂中可溶。它们在生物系统中发挥着至关重要的作用，作为细胞膜的结构成分、能量储存分子和信号分子。理解脂质（lipids）的功能和重要性对于任何学习生物学、营养或健康科学的人来说都是至关重要的。 脂质（lipids）的主要功能之一是形成细胞膜。细胞膜由磷脂双层构成，这是一种脂质（lipid）。这种结构使细胞能够维持一个与外部环境不同的内部环境。磷脂的疏水（排水）尾部朝内，而亲水（吸水）头部朝外。这种排列形成了一个半透膜，控制物质进出细胞的运动，使其能够维持体内平衡。 脂质（lipids）的另一个重要作用是能量储存。脂肪，作为一种脂质（lipid），为身体提供了浓缩的能量来源。当身体需要能量时，可以通过称为脂解的过程分解这些储存的脂肪。这个过程释放出脂肪酸，供各个组织用于能量生产。此外，脂质（lipids）还作为绝缘和保护重要器官的材料，帮助调节体温并缓冲物理创伤。 除了结构和能量储存功能外，脂质（lipids）还参与细胞信号传导。某些类型的脂质（lipids），如类固醇激素，作为信号分子调节各种生理过程。例如，胆固醇，作为一种脂质（lipid），是类固醇激素（如睾丸激素和雌激素）合成的前体。这些激素在调节新陈代谢、免疫反应和生殖功能方面发挥着重要作用。 此外，脂质（lipids）对脂溶性维生素（A、D、E和K）的吸收至关重要。这些维生素在消化道中需要脂质（lipids）才能被正确吸收。如果缺乏足够的膳食脂质（lipids），个体可能会遭受这些必需维生素的缺乏，从而导致各种健康问题。 对脂质（lipids）的研究不仅限于生物学和营养，它在医学和健康方面也具有重要意义。例如，体内脂质（lipids）水平的不平衡可能导致肥胖、心血管疾病和糖尿病等疾病。低密度脂蛋白（LDL）胆固醇水平过高，通常被称为“坏胆固醇”，可能增加心脏病的风险，而高密度脂蛋白（HDL）胆固醇水平较高，被称为“好胆固醇”，则可以降低这一风险。 总之，脂质（lipids）是必不可少的生物分子，在生物体中执行多种功能。它们在形成细胞膜、储存能量、信号传导和促进维生素吸收中的作用突显了它们在维持整体健康中的重要性。对脂质（lipids）的更深入理解，不仅丰富了我们对生物过程的知识，也强调了均衡饮食中包含健康来源的脂质（lipids）的重要性。随着研究的不断发展，脂质（lipids）在健康和疾病中的影响无疑将继续成为一个关键的研究领域。