SAT2考试是SAT subject test的通常说法，SAT2考试有别于SAT1，它是一种专项考试，考察学生某一科目的能力。下面澳际小编搜集整理了SAT2生物考试专业词汇中以字母O打头的词汇，希望能够帮助大家更好地备考SAT2生物考试。

　　O

　　Ovule(胚珠)

　　Structure that contains the female gametophyte and gametes; after fertilization, develops into a seed.

　　olfactory epithelium(OE，嗅觉上皮)

　　Region near the top of the nasal cavity with chemoreceptors and neurons that inform the sense of smell.

　　Oogenesis(卵子发生)

　　The process in which haploid egg cells (ova) form through meiotic division.

　　oxidative phosphorylation(氧化磷酸化作用)

　　Part of the electron transport chain. A process occurring in the mitochondria that results in the formation of ATP from the flow of electrons across the inner membrane to bind with oxygen.

　　Organ(器官)

　　A discrete unit of tissues that work together to perform specific functions within the body.

　　Organelle(细胞器)

　　Specialized membrane-bound structure in a cell that performs a specific function. Examples of organelles include the endoplasmic reticulum and the mitochondria.

　　Osmosis(渗透作用)

　　Process by which water naturally travels from an area of high water concentration to low water concentration.

　　Ovary(卵巢，子房)

　　In animals, the female gonad that produces ova and sex hormones. In plants, the ovaries are the structure at the base of the pistil that contains the eggs.

　　以上便是澳际小编为大家整理的SAT2生物考试专业词汇中以字母O打头的词汇的相关介绍，希望对大家有所帮助。更多SAT考试相关资料尽在澳际教育网SAT考试频道，澳际小编祝大家都能取得理想的SAT2生物考试成绩!

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