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单词 stomata
释义

stomata /'stəumətə//ˈstomətə/

英汉-汉英词典
n. 口;气孔
词组 | 习惯用语
您要查找的是不是:
  • stomach n. 胃;胃口;腹部 vt. 忍受;吃下
  • estimate vi. 估计,估价 n. 估计,估价;判断,看法
  • tomatoes n. 蕃茄(tomato的复数形式)
  • estimator n. 评价者,评估特有者
stomata n. 气孔;口
stomata stoma 气孔气孔
sunken stomata 内陷气孔
stomata guard cell 保卫细胞

网络短语:
stomata a 气孔细胞
stomata factors 气孔因素
stomata characteristic 气孔特性
raised stomata 凸起气孔
water stomata 翻译; 水孔;
stomata parameter 气孔参数
mesothelial stomata 间皮孔
Stomata characters 气孔
英语例句库
  1. Antitranspirant A chemical that reduces transpiration. Antitranspirants may work by depositing a waterproof film over the stomata or by inducing stomatal closure.
    可以减少蒸腾作用的化学物质。抗蒸腾剂可以通过沉积气孔上的防水膜或诱导气孔关闭起作用。

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原声例句
双语版 TED-Ed 演讲精选

One toxin coronatine makes plants' stomata open up, allowing bacteria to enter more freely.

一旦毒素冠菌素打开了植株的气孔,细菌入侵就更畅通无阻了。

生物学基础入门

Space around the lower epidermis and cuticle are the stomata, with guard cells on either side.

下层表皮和角质层周围的空间是气孔,两边是保卫细胞。

生物学基础入门

But they can also close the stomata to prevent other things like water from escaping.

但它们也可以关闭气孔,以防止水等其他东西逸出。

生物学基础入门

Plants get their oxygen from the air through the stomata.

植物通过气孔从空气中获取氧气。

双语版 TED-Ed 演讲精选

As part of photosynthesis, leaves open and close pores called stomata.

作为光合作用的一部分,树叶会打开和关闭它上面的细孔——叫气孔

VOA慢速英语_娱乐

Reich notes that stomata also play a role in a plant's slow adaptation to wind.

再者,赖希认为,气孔对于植物缓慢适应风力也极为重要。

VOA慢速英语_娱乐

Even movement of the plant, whether from wind or something else, affects how reactive stomata are.

如果植物有所移动,那么无论是因为风还是其他什么原因而发生的移动,都会影响气孔的响应方式。

Kurzgesagt 科普动画

Every few cells, there are huge openings called stomata, like mouths, sucking in air and blowing out oxygen.

每隔几个细胞,你看到被称为气孔的巨大开口正如嘴巴般吸入空气,并吐出氧气。

Crash Course 植物学篇

And personally, I love that stomata look like creepy little mouths.

就我个人而言,我喜欢那些看起来像令人毛骨悚然的小嘴的气孔。

生物学基础入门

It's got these little pores called stomata, which open up so carbon dioxide can diffuse into the leaf.

叶子底部有些被称为气孔的小孔,气孔打开后,二氧化碳可以扩散到叶子里。

中文百科

气孔 Stoma

(重定向自Stomata)
一个张开的气孔
Los estomas en la epidermis de una hoja tal como se ven al microscopio. Constan de dos células oclusivas unidas entre sí en sus extremos que juntas delimitan un poro u ostíolo. El tamaño de las células es regulable, lo cual regula el tamaño de el  poro.
Los estomas se abren o cierran cuando las células oclusivas alrededor de ellos cambian su turgencia por ósmosis. El agua (flechas celestes) entra o sale de la célula oclusiva siguiendo la concentración de potasio (flechas y puntos rosas), que a su vez entra o sale mediante estructuras en la membrana de la célula, con gasto de energía que en conjunto se llama transporte activo.
Un corte transversal de una hoja a la altura del estoma muestra la disposición de las células por debajo de él, formando una cámara subestomática que aloja los gases.

'气孔'是植物用来与外界交换气体和水的器官。一般来说气孔由两个腰果状的保卫细胞组成,它们形成一个可以开闭的孔。

一般气孔位于植物叶子的背面,禾本科植物叶子两面都有气孔,只有叶面铺在水面上的水生植物的气孔只位于叶面上方。

英语百科

Stoma 气孔

(重定向自Stomata)
Stoma in a tomato leaf shown via colorized scanning electron microscope image
A stoma in cross section
The underside of a leaf. In this species (Tradescantia zebrina) the stomata appear green (due to chlorophyll) while the epidermal cells appear red due to additional pigmentation.
Electron micrograph of a stoma from a Brassica chinensis (Bok Choy) leaf

In botany, a stoma (plural "stomata"), also called a stomate (plural "stomates") (from Greek στόμα, "mouth"), is a pore, found in the epidermis of leaves, stems, and other organs, that is used to control gas exchange.

The pore is bordered by a pair of specialized parenchyma cells known as guard cells that are responsible for regulating the size of the opening. The term is also used collectively to refer to an entire stomatal complex, both the pore itself and its accompanying guard cells. Air enters the plant through these openings, and contains carbon dioxide and oxygen, which are used in photosynthesis and respiration, respectively. Oxygen produced as a by-product of photosynthesis diffuses out to the atmosphere through these same openings. Also, water vapor is released into the atmosphere through these pores in a process called transpiration.

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更新时间:2025/6/21 5:42:36