2022-2024新考纲A-Level物理AS知识点介绍！
物理是自然科学的基石，A-level物理课程在知识的广度以及应用上要求更高，涉及到了部分大学物理的知识，这就对学生自主建立知识体系的能力以及语言表达能力要求更高。 CAIE考试局官网发布了新的考试大纲，适用于2...
AQA A Level Biology复习笔记2.2.3 Iodine Detects Starch Grains
Practical Skill: Using Iodine to Detect Starch Grains Starch is the storage polysaccharide of plants Sugars formed during photosynthesis are stored as starch inside starch grains These starc...
AQA A Level Biology复习笔记2.2.2 Microscopy & Drawing Scientific Diagrams
Practical Skill: Microscopy & Drawing Scientific Diagrams Many biological structures are too small to be seen by the naked eye Optical microscopes are an invaluable tool for scientists a...
AQA A Level Biology复习笔记2.1.7 Viruses
Key Features of Viruses Viruses are non-cellular infectious particles that straddle the boundary between ‘living’ and ‘non-living’ They are relatively simple in structure; much smaller than ...
AQA A Level Biology复习笔记2.1.6 Prokaryotic v Eukaryotic Cells
Prokaryotic v Eukaryotic Cell Structures Animal and plant cells are types of eukaryotic cells, whereas bacteria are a type of prokaryote Prokaryotes have a cellular structure distinct from e...
AQA A Level Biology复习笔记2.1.5 Structure of Prokaryotic Cells
Prokaryotic Cells Animal and plant cells are types of eukaryotic cells, whereas bacteria are a type of prokaryote Prokaryotic cells are much smaller than eukaryotic cells (between 100 - 1000...
AQA A Level Biology复习笔记2.1.4 Eukaryotic Cell Organisation
The Organisation of Cells As seen on the last page, in complex multicellular organisms eukaryotic cells become specialised for specific functions. For example: Epithelial cells in the small ...
AQA A Level Biology复习笔记2.1.3 Specialisation of Eukaryotic Cells
Adaptations of Eukaryotic Cells In complex multicellular organisms, eukaryotic cells become specialised for specific functions These specialised eukaryotic cells have specific adaptations to...
AQA A Level Biology复习笔记2.1.2 Structure of Eukaryotic Cells
The Structure of Eukaryotic Cells Cell surface membrane The structure of the cell surface membrane – although the structure looks static the phospholipids and proteins forming the bilayer ar...
