petri dish

简明释义

陪替氏培养皿

英英释义

例句

1.The scientist placed the bacteria on a petri dish 培养皿 to observe their growth.

科学家将细菌放在一个培养皿 petri dish上以观察它们的生长。

2.The lab technician cleaned the petri dish 培养皿 before starting the experiment to avoid contamination.

实验室技术员在开始实验之前清洁了培养皿 petri dish以避免污染。

3.The results from the petri dish 培养皿 showed significant bacterial growth after 48 hours.

来自培养皿 petri dish的结果显示，在48小时后细菌生长显著。

4.Different types of media can be used in a petri dish 培养皿 to grow various microorganisms.

在培养皿 petri dish中可以使用不同类型的培养基来培养各种微生物。

5.After preparing the petri dish 培养皿, she inoculated it with yeast for fermentation experiments.

准备好培养皿 petri dish后，她用酵母接种以进行发酵实验。

作文

The world of science is filled with fascinating tools and techniques that allow researchers to explore the mysteries of life. One such tool that has become synonymous with microbiology and cell culture is the petri dish. A petri dish is a shallow, flat, cylindrical container made of glass or clear plastic, typically with a lid. It is used primarily for culturing microorganisms, cells, or small plants in a controlled environment. The design of the petri dish allows scientists to observe the growth and behavior of various organisms in a laboratory setting.In the realm of microbiology, the petri dish serves as a fundamental instrument for studying bacteria, fungi, and other microscopic life forms. When a scientist wants to isolate a particular strain of bacteria, they will often inoculate a petri dish with a sample taken from a patient or an environmental source. By providing the right nutrients and conditions, the microorganisms can grow and multiply, forming visible colonies on the surface of the agar medium contained within the petri dish.The use of the petri dish is not limited to microbiology alone. In plant biology, for instance, researchers utilize petri dishes to propagate plant cells and tissues. This technique, known as tissue culture, allows scientists to grow new plants from a few cells, ensuring genetic consistency and enabling the study of plant development in a controlled environment. The petri dish thus becomes a miniature greenhouse, where conditions can be meticulously regulated to optimize growth.Another interesting application of the petri dish is in educational settings. In biology classes, students often use petri dishes to conduct experiments that demonstrate the principles of microbial growth and antibiotic resistance. By introducing different substances into the petri dish, students can observe how various bacteria respond to antibiotics or environmental changes. This hands-on experience not only enhances their understanding of biological concepts but also fosters a sense of curiosity and inquiry.Despite its simplicity, the petri dish has played a pivotal role in numerous scientific breakthroughs. For example, Alexander Fleming's discovery of penicillin was made possible through his work with petri dishes, where he observed the antibacterial properties of the mold Penicillium notatum. This serendipitous finding revolutionized medicine and paved the way for the development of antibiotics, saving countless lives.In conclusion, the petri dish is more than just a laboratory tool; it is a gateway to understanding the complexities of life at the microscopic level. Its applications span across various fields of science, from microbiology to botany, and it continues to be an essential part of research and education. As we advance our knowledge and technology, the petri dish remains a symbol of scientific inquiry and discovery, reminding us of the importance of exploration in the pursuit of knowledge. The next time you see a petri dish, remember that it holds the potential for groundbreaking discoveries and insights into the living world around us.

科学的世界充满了迷人的工具和技术，这些工具和技术使研究人员能够探索生命的奥秘。其中一个与微生物学和细胞培养密切相关的工具是培养皿。培养皿是一种浅而平坦的圆柱形容器，通常由玻璃或透明塑料制成，带有盖子。它主要用于在受控环境中培养微生物、细胞或小植物。培养皿的设计使科学家能够在实验室环境中观察各种生物体的生长和行为。在微生物学领域，培养皿作为研究细菌、真菌和其他微观生命形式的基本工具。当科学家想要分离特定菌株时，他们通常会用从患者或环境样本中提取的样本接种培养皿。通过提供适当的营养和条件，微生物可以在培养皿中生长和繁殖，在琼脂培养基的表面形成可见的菌落。培养皿的使用不仅限于微生物学。在植物生物学中，研究人员利用培养皿来繁殖植物细胞和组织。这种技术被称为组织培养，允许科学家从少量细胞中生长新植物，确保遗传一致性，并能够在受控环境中研究植物发育。因此，培养皿成为一个微型温室，可以精确调节条件以优化生长。另一个有趣的培养皿应用是在教育环境中。在生物课上，学生们经常使用培养皿进行实验，以演示微生物生长和抗生素耐药性的原理。通过将不同物质引入培养皿，学生可以观察各种细菌如何对抗生素或环境变化作出反应。这种实践经验不仅增强了他们对生物概念的理解，还培养了好奇心和探究精神。尽管其简单性，培养皿在众多科学突破中发挥了关键作用。例如，亚历山大·弗莱明发现青霉素的过程得益于他对培养皿的研究，他观察到了青霉菌Penicillium notatum的抗菌特性。这一意外发现彻底改变了医学，为抗生素的发展铺平了道路，拯救了无数生命。总之，培养皿不仅仅是实验室工具；它是理解微观生命复杂性的门户。它的应用跨越多个科学领域，从微生物学到植物学，仍然是研究和教育的重要组成部分。随着我们知识和技术的进步，培养皿依然是科学探究和发现的象征，提醒我们在追求知识的过程中探索的重要性。下次你看到培养皿时，请记住，它蕴含着开创性发现和对我们周围生活世界的洞察的潜力。