photoreceptor

简明释义

英[ˈfəʊtəʊrɪseptə(r)]美[ˈfoʊtoʊrɪseptər]

n. [生理] 光感受器；[生理][动] 感光器

英英释义

单词用法

同义词

反义词

例句

1.AIM: to observe the protective effect of Astragalus injection on N-methyl-N-nitrosourea (MNU) -induced photoreceptor apoptosis in SD rats.

目的观察黄芪注射液对N甲基N亚硝脲(MNU)诱导SD大鼠视网膜光感受器细胞凋亡的保护作用。

2.Segments of photoreceptor connected with outer nuclear layer via the external limiting membrane.

光感受器节段通过外界膜与外核层发生联系。

3.When the three types of photoreceptor cells evenly receive chromatic light of roughly equal intensity, there are white light in our mind.

当三种感光细胞都均匀收到约略相等强度的色光时，我们的脑海中便形成白光的感觉。

4.It was indicated that phytochrome is the photoreceptor of female photoperiod-sensitive sterility in PFSR.

暗示光敏色素是PFSR雌性育性光敏性的光受体。

5.Retinitis pigmentosa is a disease that causes progressive loss of vision, as the photoreceptor cells degenerate, and eventually die.

视网膜炎色斑是一种可以引起视力丧失的疾病，也就是图像受体细胞退化，最终丧失功能。

6.This article has summarized the applications of the hydrogenated amorphous silicon (a-Si: h) to photoreceptor of the electrophotography.

本文概述了氢化非晶硅作为静电复印感光膜的应用。

7.Vitamins function as photoreceptor mechanism of retina, maintenance of integrity of epithelia, lysosome stability, glycoprotein synthesis.

它的作用有：视网膜光受体机制、 护上皮细胞的完整性、酶体的稳定性、蛋白的合成等。

8.The injury is caused by many factors, in which the apoptosis of the photoreceptor cells is an important mechanism.

早期眼球破裂伤视网膜感光细胞可能有很多原因，而细胞凋亡是早期视网膜感光细胞损伤的重要因素。

9.Damage to photoreceptors can lead to vision loss and other ocular diseases.

对光感受器的损伤可能导致视力丧失和其他眼部疾病。

10.Research on photoreceptors has advanced our understanding of how vision works.

对光感受器的研究推动了我们对视觉工作原理的理解。

11.The human eye contains specialized cells known as photoreceptors that convert light into electrical signals.

人眼中含有称为光感受器的特化细胞，将光转换为电信号。

12.Certain animals have unique photoreceptors that allow them to see ultraviolet light.

某些动物具有独特的光感受器，使它们能够看到紫外线光。

13.Rod and cone cells in the retina are types of photoreceptors that help us see in different lighting conditions.

视网膜中的杆状细胞和锥状细胞是帮助我们在不同光照条件下视觉的两种类型的光感受器。

作文

In the world of biology, understanding how organisms perceive their environment is crucial. One of the most fascinating components of this process is the role of the photoreceptor, a specialized cell that converts light into electrical signals. These cells are essential for vision in animals, allowing them to detect light and dark, as well as color. In humans, there are two main types of photoreceptors: rods and cones. Rods are highly sensitive to light and enable us to see in low-light conditions, while cones are responsible for our ability to perceive color and fine detail in brighter environments.The structure of a photoreceptor is uniquely designed to capture photons, the basic units of light. Each photoreceptor contains molecules called opsins, which change shape when they absorb light. This change initiates a biochemical cascade that ultimately results in the generation of an electrical signal sent to the brain. The brain then interprets these signals, allowing us to experience sight. Interestingly, photoreceptors are not limited to the animal kingdom. Plants also possess light-sensitive proteins that can be considered analogous to animal photoreceptors. These proteins help plants respond to light, regulating processes such as photosynthesis and growth. For instance, certain plants will grow towards a light source, a phenomenon known as phototropism, which is driven by the plant's ability to sense light through its own photoreceptors.The study of photoreceptors extends beyond just biology; it has significant implications for technology and medicine. Researchers are exploring ways to harness the principles of photoreceptors to develop advanced imaging systems, improve vision restoration techniques, and even create artificial retinas for those suffering from vision impairments. By mimicking the function of natural photoreceptors, scientists aim to bridge the gap between biological systems and artificial devices, leading to innovative solutions for visual disabilities.Moreover, understanding photoreceptors can shed light on various disorders related to vision. Conditions such as retinitis pigmentosa and age-related macular degeneration are linked to the degeneration of photoreceptors. By studying these cells, researchers hope to uncover the mechanisms behind these diseases and develop potential treatments. The ongoing research into photoreceptors not only enhances our knowledge of human biology but also opens new avenues for therapeutic interventions.In conclusion, photoreceptors are vital components of both animal and plant life, playing a key role in how organisms interact with light. Their ability to convert light into electrical signals is fundamental to vision and has inspired numerous scientific advancements. As we continue to explore the complexities of photoreceptors, we gain deeper insights into the natural world and the potential for technological innovations that can improve human health and well-being.

在生物学的世界中，理解生物体如何感知其环境至关重要。这个过程中一个最令人着迷的组成部分是光感受器的作用，它是一种特殊的细胞，将光转化为电信号。这些细胞对动物的视觉至关重要，使它们能够检测光和暗以及颜色。人类有两种主要类型的光感受器：杆状细胞和锥状细胞。杆状细胞对光高度敏感，使我们能够在低光条件下看见，而锥状细胞则负责我们在更明亮环境中感知颜色和细节的能力。光感受器的结构独特，旨在捕捉光子，即光的基本单位。每个光感受器都含有称为视蛋白的分子，当它们吸收光时会改变形状。这种变化启动了生化级联反应，最终产生发送到大脑的电信号。大脑随后解释这些信号，让我们体验视觉。有趣的是，光感受器并不仅限于动物王国。植物也拥有光敏蛋白，可以被视为与动物光感受器相似的东西。这些蛋白质帮助植物对光做出反应，调节光合作用和生长等过程。例如，某些植物会朝向光源生长，这种现象称为向光性，由植物通过自身的光感受器感知光而驱动。对光感受器的研究不仅限于生物学；它对技术和医学也有重要影响。研究人员正在探索利用光感受器的原理开发先进成像系统、改善视觉恢复技术，甚至为那些患有视力障碍的人创造人工视网膜。通过模仿自然光感受器的功能，科学家们旨在弥合生物系统与人工设备之间的差距，带来创新的视觉残疾解决方案。此外，理解光感受器可以揭示与视觉有关的各种疾病。诸如视网膜色素变性和年龄相关性黄斑变性等疾病与光感受器的退化有关。通过研究这些细胞，研究人员希望揭示这些疾病背后的机制，并开发潜在的治疗方法。对光感受器的持续研究不仅增强了我们对人类生物学的理解，还开启了治疗干预的新途径。总之，光感受器是动物和植物生命的重要组成部分，在生物体如何与光互动中发挥关键作用。它们将光转化为电信号的能力是视觉的基础，并激发了众多科学进步。随着我们继续探索光感受器的复杂性，我们对自然界的理解加深，也为改善人类健康和福祉的技术创新开辟了新的前景。