Biology B (9BI0)

10个单元 · 56个章节

免费的Biology B (9BI0)学习笔记，专为Pearson Edexcel A Level学生准备。下列每个章节都涵盖一个重点主题，附有例题与练习提示，可在 thinka 应用中延伸练习。

Biological Molecules

Carbohydrates
Lipids
Proteins
DNA and protein synthesis
Enzymes
Inorganic ions
Water

Cells, Viruses and Reproduction of Living Things

Eukaryotic and prokaryotic cell structure and function
Viruses
Eukaryotic cell cycle and division
Sexual reproduction in mammals
Sexual reproduction in plants

Classification and Biodiversity

Classification
Natural selection
Biodiversity

Exchange and Transport

Surface area to volume ratio
Cell transport mechanisms
Gas exchange
Circulation
Transport of gases in the blood
Transfer of materials between the circulatory system and cells
Transport in plants

Energy for Biological Processes

Aerobic respiration
Glycolysis
Link reaction and Krebs cycle
Oxidative phosphorylation
Anaerobic respiration
Photosynthetic pigments
Photosynthesis

Microbiology and Pathogens

Microbial techniques
Bacteria as pathogens
Action of antibiotics
Antibiotic resistance
Other pathogenic agents
Problems of controlling endemic diseases
Response to infection

Modern Genetics

Using gene sequencing
Factors affecting gene expression
Stem cells
Gene technology

Origins of Genetic Variation

Origins of genetic variation
Transfer of genetic information
Gene pools

Control Systems

Homeostasis
Chemical control in mammals
Chemical control in plants
Structure and function of the mammalian nervous system
Nervous transmission
Effects of drugs on the nervous system
Detection of light by mammals
Control of heart rate in mammals
Osmoregulation and temperature regulation

Ecosystems

The nature of ecosystems
Energy transfer through ecosystems
Changes in ecosystems
Human effects on ecosystems

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