各章节IGCSE生物考点及重难点分析

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IGCSE生物考点 IGCSE生物 IGCSE生物课程

在IGCSE生物课程学习及考试中，是非常关注学生对于知识点的掌握的，因此同学们在日常学习和备考中一定要确保自己对IGCSE生物考点有一个充分的积累和掌握。今天易伯华小编就带大家来分析一下在IGCSE生物各章节中所考察的主要内容以及考试中的重难点，希望能够为大家生物备考带来一些帮助。

1.Classification

预计会有6-14分。

只能靠记忆。大家把我发的资料背一背，估计问题不大。

2.Cells

太简单了，一般不会有大题。

3.Movement in and out of cells

一定要背diffusion，osmosis和active transport的定义

考题一般和其他章节考。

比如植物根如何吸收水（osmosis），吸收无机盐（active transport）吸收氧气（diffusion）

答这个部分题目的时候，一定要把定义补完整

4.Chemicals of life

a.记住food test

b.balanced diet

c.记住每种营养物质的作用

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

d.carbohydrate，fat，protein，cellulose的组成单位

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温度和酶的关系

d.Fermenter

f.biological washing powder

6.Plant nutrition

a.光合作用方程式

b.叶片的结构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如何控制气孔大小

（gas exchange,photosynthesis and transpiration）

d.缺magnesium和nitrate对植物的影响

f.limiting factors对光合作用的影响

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

以上就是易伯华小编对于IGCSE生物考点的解析，同学们可以作为自己生物考试复习中的一份参考，来帮助自己更好的开展复习工作。当然每年的考试的考察方向和趋势变化可能会略有差异，建议同学们提前咨询好易伯华课程老师，在老师一对一针对性的辅导下更加有保障的开展复习和备考工作。