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各章節(jié)IGCSE生物考點及重難點分析

知識點       時間:2020-02-21 17:30      

 

  在IGCSE生物課程學(xué)習(xí)及考試中,是非常關(guān)注學(xué)生對于知識點的掌握的,因此同學(xué)們在日常學(xué)習(xí)和備考中一定要確保自己對IGCSE生物考點有一個充分的積累和掌握。今天A加未來小編就帶大家來分析一下在IGCSE生物各章節(jié)中所考察的主要內(nèi)容以及考試中的重難點,希望能夠為大家生物備考帶來一些幫助。


biology.jpg


  1.Classification


  預(yù)計會有6-14分。


  只能靠記憶。大家把我發(fā)的資料背一背,估計問題不大。


  2.Cells


  太簡單了,一般不會有大題。


  3.Movement in and out of cells


  一定要背diffusion,osmosis和active transport的定義


  考題一般和其他章節(jié)考。


  比如植物根如何吸收水(osmosis),吸收無機鹽(active transport)吸收氧氣(diffusion)


  答這個部分題目的時候,一定要把定義補完整


  4.Chemicals of life


  a.記住food test


  b.balanced diet


  c.記住每種營養(yǎng)物質(zhì)的作用


  carbohydrate,fat,protein,cellulose,vitamin(C&D),minerals(Fe&Ca)and water的作用


  d.carbohydrate,fat,protein,cellulose的組成單位


  5.Enzymes


  a.enzyme的6大特征


  (1protein,2catalyst,3specific,4optimum ph,5 optimum temperature,6denature at high temperature)


  b.lock&key


  c.describe&explain溫度和酶的關(guān)系


  d.Fermenter


  f.biological washing powder


  6.Plant nutrition


  a.光合作用方程式


  b.葉片的結(jié)構(gòu)和各部分的特征以及功能


  (waxy cuticle,upper epidermis,palisade mesophyll,spongy mesophyll,vein,lowerepidermis,guard cell)


  C.guard cell如何控制氣孔大小


  (gas exchange,photosynthesis and transpiration)


  d.缺magnesium和nitrate對植物的影響


  f.limiting factors對光合作用的影響


  7.Animal nutrition


  1.tooth decay


  2.for and against fluoride


  3.adaptations and functions of ileum


  4.function of duodenum


  5.function of liver


  6.function of pancreas


  7.functions of stomach


  8.Transport


  1.structure of heart


  2.differences between artery,vein and capillary


  3.adaptations and functions of red blood cell,


  4.adaptations of functions of lymphocyte and phagocyte


  5.HIV


  7.functions of platelets


  8.cardiac cycle


  9.Respiration


  1.bad effects of smoking(co,


  10.Coordination and response


  1.Structure of eye


  2.endocrine system vs nervous system


  3.describe iris reflex,accommodation reflex,withdrawal reflex


  4.adrenaline


  5.cones vs rods


  6.voluntary vs involuntary


  11.Homeostasis and excretion


  1.how to maintain body temperature


  2.how to regulate blood glucose level


  3.the structure of kidney


  4.the structure of nephron and the functions of each part


  5.dialyasis vs kidney transplantation


  6.tissue rejection


  12 Drugs


  1.bad effect of heroin


  2.bad effect of alcohol


  3.the evoluation of antibiotic-resistant bacteria


  13.Reproduction


  1.sexual reproduction vs asexual reproduction


  2.4 hormones in menstrual cycle(FSH,LH,oestrogen and progesterone)


  3.secondary characteristics of male and female


  4.formular milk vs mother's milk


  5.functions of placenta


  6.sperm vs egg


  7.functions of amnion


  8.birth control


  9.treatment of gonorrhoea


  10.HIV


  11.wind-pollination vs insect pollination


  12.germination


  14.Inheritance and evolution


  1.maria VS sickle cell anaemia


  2.codominant(ABO blood type)


  3.the process of making insulin from Gene-modified bacteria


  4.Natural selection


  15.Living organismsin their environment


  1.energy loss along food chain


  2.nitrogen cycle


  3.carbon cycle


  4.describe and explain population curve


  16.Humans and the environment


  A.causes,bad effect and how to solve


  1.acid rain


  2.deforestation


  3.bioaccumulation of pesticide


  4.radiactive pollution


  5.plastics


  6.sewage(containing nitrate and organic substances)


  B.the purpose and measure of


  1.preservation of species


  2.limited resources(minerals,forest)


  3.water


  以上就是A加未來小編對于IGCSE生物考點的解析,同學(xué)們可以作為自己生物考試復(fù)習(xí)中的一份參考,來幫助自己更好的開展復(fù)習(xí)工作。當(dāng)然每年的考試的考察方向和趨勢變化可能會略有差異,建議同學(xué)們提前咨詢好A加未來國際課程老師,在老師一對一針對性的輔導(dǎo)下更加有保障的開展復(fù)習(xí)和備考工作。

 

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