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procaryotes

/proʊˈkærioʊts/ /prəˈkærioʊts/

Meanings
noun

原核生物，原核细胞。

An organism whose cell (or cells) are characterized by the absence of a nucleus or any other membrane-bound organelles.

Examples :

"Bacteria are procaryotes, meaning their cells lack a nucleus to hold their DNA. "
细菌是原核生物，也就是说，它们的细胞里没有细胞核来存放DNA。
organism biology microorganism science

Related Words

Illustration superseded

superseded verb

/ˌsupərˈsidɪd/ /ˌsjuːpərˈsidɪd/

取代，替代，接替

"Those older products have been superseded by our new range."

那些旧产品已经被我们的新系列产品所取代了。

Illustration organism

organism noun

/ˈɔː.ɡən.ɪ.zəm/ /ˈɔɹ.ɡən.ɪ.zəm/

生物，有机体

"The single-celled organism was studied by the biology students in their science class. "

生物课上，生物系的学生们研究了这种单细胞生物。

Illustration meaning

meaning noun

/ˈmiːnɪŋ/

意思，含义

"The meaning of the teacher's hand gesture was clear: "Pay attention." "

老师手势的意思很明显： “注意听讲。”

Illustration organelles

organelles noun

/ɔːrɡəˈnelz/ /ɔrɡəˈnelz/

细胞器

"Just like a factory has specialized machines for different tasks, a cell contains organelles that each perform a specific job, such as creating energy or storing waste. "

就像工厂里有专门的机器负责不同的任务一样，细胞里也含有各种细胞器，每种细胞器都执行特定的功能，比如产生能量或储存废物。

Illustration examples

examples noun

/ɪɡˈzɑːmpl̩z/ /ɪɡˈzæmpl̩z/

例子, 实例

"Here are some examples of different types of birds: robins, eagles, and sparrows. "

这里有一些不同种类鸟类的例子：知更鸟，老鹰和麻雀。

Illustration absence

absence noun

/ˈæb.s(ə)n̩s/ /æbˈsɒns/

缺席，不在。

"Absence makes the heart grow fonder."

离别情更浓。

Illustration biological

biological noun

/ˌbaɪə(ʊ)ˈlɒdʒɪkəl/ /ˌbaɪəˈlɑdʒɪkəl/

生物制品，生物制剂。

"The school's science fair featured several different biological specimens. "

学校的科学展览会上展出了好几种不同的生物标本 (shēngwù biāoběn)，也就是生物制品。

Illustration membrane

membrane noun

/ˈmembɹeɪn/

膜, 薄膜

"The cell membrane controls what enters and leaves the cell. "

细胞膜控制着什么物质可以进入和离开细胞。

Illustration bacteria

bacteria noun

/bækˈtɪəɹ.ɪ.ə/ /bækˈtɪɹ.i.ə/

细菌，病菌

"The doctor identified the specific bacteria causing the student's illness. "

医生确定了导致学生生病的 конкретной细菌种类。

Illustration nucleus

nucleus noun

/ˈnjuː.kli.əs/ /ˈnuːkli.əs/

核心，中心。

"The nucleus of the family's discussions was always about who would do the dishes. "

这个家庭讨论的核心总是围绕着谁来洗碗。

Illustration taxonomy

taxonomy noun

/tækˈsɒnəmi/ /tækˈsɑːnəmi/

分类学，分类法

"The librarian used a detailed taxonomy to organize the books by subject and author, making it easier for students to find what they needed. "

图书馆管理员使用了一套详细的分类法，按照主题和作者来整理书籍，这让学生们更容易找到他们需要的书。

Illustration characterized

characterized verb

/ˈkæɹəktəɹaɪzd/

刻画，描绘，丑化。

"The teacher characterized the student as disruptive in class. "

老师把那个学生描绘成课堂上的捣乱分子。