SAT2生物考试专业词汇：F.

　　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F打头的词汇，希望能够帮助大家更好地备考SAT2生物考试。

　　F₁ generation

　　The first generation of offspring from a cross between two varieties or individuals. In Mendel’s experiments, all the F1 offspring were heterozygous hybrids with a dominant phenotype.

　　F₂ generation

　　The second generation of offspring in a breeding experiment; the offspring from a mating between two F1 hybrids. In Mendel’s monohybrid experiments, the ratio of dominant to recessive phenotypes in the F2 generation was 3:1.

　　facilitated diffusion(促进扩散)

　　Diffusion of molecules that cannot pass through the cell membrane independently, but rather through permeable protein channels embedded in the membrane. Facilitated diffusion does not require outside energy.

　　FADH2 (蛋白结合性载体)

　　A molecule that stores energy for harvest by the electron transport chain.

　　food chain(食物链)

　　A linear relationship of predators and prey.

　　food web(食物网)

　　Many connected food chains that exhibit the relationships of all predators to all prey constitute a food web.

　　fossil record(化石记录)

　　The grouping of fossilized remains according to relative and absolute age.

　　Fallopian tube(输卵管)

　　Duct that connects the ovaries with the uterus; the passage through which the ovulated egg travels from the ovaries to the uterus.

　　Fermentation(发酵)

　　The second stage of anaerobic respiration, which produces the NAD+ necessary for glycolysis. There are two types of fermentation: alcoholic fermentation and lactic acid fermentation. Yeast engage in alcoholic fermentation, while muscle cells lacking oxygen produce lactic acid.

　　Fetus(胎儿)

　　The name given to an embryo after it has developed organs.

　　Flagellum(鞭毛)

　　A whiplike structure projecting from the surface of some cells and single-celled organisms; coordinated waving of the flagellum allows the organism to swim. Prokaryotic flagella are made of a single helical chain of flagellin proteins; eukaryotic flagella are made of multiple chains of microtubule proteins.

　　fluid-mosaic model(流动镶嵌模型)

　　Theory describing the cell membrane as a dynamic structure with proteins floating, yet partially embedded, in a sea of phospholipids.

　　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F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!