IGCSE生物topic1学什么 A*超级好拿

IGCSE生物是最好拿A*的科目之一，同时这门选课的专业选择方向也非常广泛，因此还是很推荐大家选择的。今天就和大家介绍一下IGCSE生物topic1的学习内容，一起深入了解下这门科目吧。

IGCSE生物topic1学什么 A*超级好拿内容图片_1

以cie考试局为例，主要学21个主题——

生物的特征和分类；有机体的组织；进出细胞的运动；生物分子；酶；植物营养学；人类营养学；植物运输；动物运输；疾病和免疫；人体气体交换；呼吸作用；人体排泄；协调与反应；药物；繁殖；遗传；进化与选择；生物及其环境；生物技术与基因工程；人类对生态系统的影响。

考试本身分为p1和p2。两者都涵盖相同的主题集，但问题模式往往不同。对于生物学来说，p1的实验性更强，而p2的实验性更强，理论性更强。

某些问题会不时重复，建议记住标记方案点，以避免不必要的标记丢失。

以下为IGCSE生物topic1的要点，供各位即将步入IGCSE生物学习的同学们参考:

Topic 1 – Key concepts in biology (Topic 1 content is common to all the biology papers)

(Topic 1 – Overarching concepts in biology)

(Edexcel 9-1 GCSE Biology 1, Paper 1, Topic 1 "Key concepts in biology")

You should be able to ....

◆ Be able to explain how the sub-cellular structures of eukaryotic and prokaryotic cells are related to their functions, including:

animal cells - nucleus, cell membrane, mitochondria and ribosomes

plant cells - nucleus, cell membrane, cell wall, chloroplasts, mitochondria, vacuole and ribosomes

bacteria - chromosomal DNA, plasmid DNA, cell membrane, ribosomes and flagella.

Introduction to plant and animal cell structure and function gcse biology revision notes.

◆ Be able to describe how specialised cells are adapted to their function, including:

sperm cells – acrosome, haploid nucleus, mitochondria and tail.

egg cells – nutrients in the cytoplasm, haploid nucleus and changes in the cell membrane after fertilisation.

ciliated epithelial cells.

Introduction to cell specialisation gcse biology revision notes.

◆ Be able to explain how changes in microscope technology, including electron microscopy, have enabled us to see cell structures with more clarity and detail than in the past and increased our understanding of the role of sub-cellular structures.

Microscopy - the development and use of microscopes in biology gcse biology revision notes

◆ Be able to demonstrate an understanding of number, size and scale, including the use of estimations and explain when they should be used

◆Be able to demonstrate an understanding of the relationship between quantitative units in relation to cells, including:

milli (10-3), micro (10-6), nano (10-9), pico (10-12)

(HT only) Do calculations with numbers written in standard form

◆ Core Practical: You should have investigated biological specimens using microscopes, including magnification calculations and labelled scientific drawings from observations.

Microscopy - the development and use of microscopes in biology gcse biology revision notes

◆ Be able to explain the mechanism of enzyme action including the active site and enzyme specificity

◆ Be able to explain how enzymes can be denatured due to changes in the shape of the active site

◆ Be able to explain the effects of temperature, substrate concentration and pH on enzyme activity.

◆ Core Practical: You should have investigated the effect of pH on enzyme activity.

◆ Be able to demonstrate an understanding of rate calculations for enzyme activity

◆ Be able to explain the importance of enzymes as biological catalysts in the synthesis of carbohydrates, proteins and lipids and their breakdown into sugars, amino acids and fatty acids and glycerol.

ENZYMES - structure, function, optimum conditions, investigation experiments gcse biology revision notes

See also Enzymes and Biotechnology (gcse chemistry notes)

◆ Investigating the use of chemical reagents to identify starch, reducing sugars, proteins and fats

◆ Be able to explain how the energy contained in food can be measured using calorimetry

◆ Be able to explain how substances are transported by diffusion, osmosis and active transport

Diffusion, osmosis and active transport gcse biology revision note

◆ Core practical: You should have investigated osmosis in potatoes

◆ Be able to calculate percentage gain and loss of mass in osmosis

Investigating the effect of temperatures and concentration on enzyme activity.

以上就是我们为大家介绍的IGCSE生物topic1的学习内容，不知道你觉得自己是否能hold住呢？

最近，威尔士官宣了明年IGCSE大考的消息（点击了解威尔士2021ALEVEL大考取消但是这次不看预估分了？），英国其他地区也纷纷宣布了推迟考试的消息。让很多学员打乱了自己的学习节奏，其实就现在这个情况，不论你是在国内还是应该，最保险的做法都是两手准备——

一方面努力复习，为大考冲刺做准备，以防大考正常举行，