coelenteron

简明释义

英[sɪˈlentərɒn]美[sɪˈlentəˌrɑːn]

n. 腔肠动物的腔肠体

复 数 c o e l e n t e r a

英英释义

单词用法

同义词

反义词

例句

1.The coelenteron serves as both a digestive and a circulatory system in cnidarians.

腔肠在刺胞动物中既作为消化系统，也作为循环系统。

2.The walls of the coelenteron are lined with specialized cells that aid in digestion.

腔肠的壁上有专门的细胞，帮助消化。

3.In sea anemones, the structure of the coelenteron is crucial for nutrient absorption.

在海葵中，腔肠的结构对于营养吸收至关重要。

4.Corals have a coelenteron that allows them to capture prey and digest food efficiently.

珊瑚拥有一个腔肠，使它们能够有效捕捉猎物和消化食物。

5.The digestive process in jellyfish occurs within the coelenteron, which is their central cavity.

水母的消化过程发生在腔肠内，这是它们的中央腔体。

作文

The world of biology is filled with fascinating structures and concepts that help us understand the complexity of life. One such term that often arises in the study of certain organisms is coelenteron. The coelenteron refers to the central cavity of cnidarians, which includes jellyfish, corals, and sea anemones. This cavity plays a crucial role in their feeding and digestion processes. Understanding the coelenteron is essential for grasping how these organisms interact with their environment and sustain themselves.Cnidarians are unique creatures, characterized by their radial symmetry and the presence of specialized cells called cnidocytes, which contain stinging structures known as nematocysts. These adaptations allow them to capture prey effectively. Once a cnidarian captures its food, it uses its tentacles to bring the prey into the coelenteron, where the digestive process begins. The walls of the coelenteron are lined with cells that secrete enzymes to break down the food into smaller, absorbable components.In addition to digestion, the coelenteron serves another vital function: it acts as a hydrostatic skeleton. This means that the fluid within the coelenteron provides structural support, allowing the organism to maintain its shape and move efficiently. For jellyfish, this is particularly important as they rely on the contraction and relaxation of their bell-shaped bodies to propel themselves through the water.Moreover, the coelenteron is involved in respiration and excretion. Cnidarians lack complex respiratory and excretory systems; instead, gases and waste products diffuse directly across the thin walls of the coelenteron. This simple yet effective system highlights the efficiency of cnidarians in their aquatic environments.The ecological significance of the coelenteron cannot be overlooked. Coral reefs, which are built by colonies of coral polyps, rely on the health of the coelenteron for nutrient exchange and energy production. Through a symbiotic relationship with algae called zooxanthellae, corals utilize the products of photosynthesis to supplement their energy needs. This relationship is vital for the survival of coral reefs, which are among the most diverse ecosystems on the planet.In conclusion, the concept of coelenteron is integral to understanding the biology of cnidarians. From digestion to structural support and ecological interactions, the coelenteron plays a multifaceted role in the lives of these remarkable organisms. By studying the coelenteron, we gain insights not only into the physiology of cnidarians but also into the broader ecological dynamics of marine environments. As we continue to explore the wonders of biology, terms like coelenteron remind us of the intricate connections that sustain life on Earth.

生物学的世界充满了迷人的结构和概念，帮助我们理解生命的复杂性。其中一个常常出现在某些生物研究中的术语是coelenteron。coelenteron指的是腔肠动物的中央腔体，包括水母、珊瑚和海葵。这个腔体在它们的喂食和消化过程中起着至关重要的作用。理解coelenteron对于掌握这些生物如何与环境互动和维持自身生命至关重要。腔肠动物是独特的生物，其特征是辐射对称和存在名为刺细胞的专门细胞，这些细胞含有称为刺丝囊的刺状结构。这些适应性使它们能够有效捕捉猎物。一旦腔肠动物捕获到食物，就会利用触手将猎物带入coelenteron，在那里消化过程开始。coelenteron的壁上覆盖着分泌酶的细胞，以将食物分解成更小的可吸收成分。除了消化，coelenteron还发挥着另一项重要功能：它充当液态骨骼。这意味着coelenteron内的液体提供结构支持，使生物能够保持形状并有效移动。对于水母来说，这一点尤为重要，因为它们依靠钟形身体的收缩和放松来推动自己在水中移动。此外，coelenteron还参与呼吸和排泄。腔肠动物缺乏复杂的呼吸和排泄系统；相反，气体和废物直接通过coelenteron薄壁扩散。这种简单而有效的系统突显了腔肠动物在其水生环境中的效率。coelenteron的生态重要性也不容忽视。珊瑚礁是由珊瑚虫群落构建的，依赖于coelenteron的健康进行营养交换和能量生产。通过与名为zooxanthellae的藻类的共生关系，珊瑚利用光合作用的产物来补充其能量需求。这种关系对珊瑚礁的生存至关重要，而珊瑚礁是地球上最丰富多样的生态系统之一。总之，coelenteron的概念对于理解腔肠动物的生物学至关重要。从消化到结构支持和生态互动，coelenteron在这些非凡生物的生活中扮演着多重角色。通过研究coelenteron，我们不仅可以深入了解腔肠动物的生理学，还可以理解海洋环境的更广泛生态动态。当我们继续探索生物学的奇迹时，像coelenteron这样的术语提醒我们，维持地球生命的复杂联系。