2023香港AP報名截止時間延長，新增考位名額今日起報名！
2023香港AP報名截止時間延長，新增考位名額今日起報名！香港AP考場一直是大陸社會考生的首選項，所以10月香港開放報名后很快滿額，中間增加過一次名額，但似乎依舊供不應求。 重點如下： 1、報名時間：11月9日上...
Edexcel A (SNAB) A Level Biology:復習筆記3.3.1 Mammalian Gametes
Mammalian Gametes Gametes Gametes are the?sex cells?of an organism For example, the?sperm?and?egg?(ovum) cells in humans Gametes fuse during fertilisation to form a?zygote Fertilisation is the?fusi...
Edexcel A (SNAB) A Level Biology:復習筆記3.2.3 Practical: Identifying Mitosis in Plant Cells
Pracitical: Identifying Mitosis in Plant Cells Growth in plants occurs in specific regions called?meristems The root tip meristem can be used to study?mitosis The root tip meristem can be found?jus...
Edexcel A (SNAB) A Level Biology:復習筆記3.2.2 Mitosis
The Stages of Mitosis Mitosis is the process of nuclear division by which?two genetically identical daughter nuclei?are produced that are also genetically identical to the parent cell nucleus (they...
Edexcel A (SNAB) A Level Biology:復習筆記3.2.1 The Cell Cycle
The Cell Cycle Mitosis?is part of a?precisely controlled process?known as the?cell cycle The cell cycle is the?regulated sequence of events?that occurs?between one cell division and the next The ce...
Edexcel A (SNAB) A Level Biology:復習筆記3.1.7 Recognising Organelles
Recognising Organelles from Electron Microscope Images Electron microscopes can produce highly detailed images of animal and plant cells This is because they have a higher?resolution, or?resolving ...
Edexcel A (SNAB) A Level Biology:復習筆記3.1.6 Magnification Calculations
Magnification & Measuring Size Magnification?is?how many times bigger?the image of a specimen observed is in comparison to the actual, real-life size of the specimen A?light microscope?has two ...
Edexcel A (SNAB) A Level Biology:復習筆記3.1.5 Microscopy
Using a Microscope Many biological structures are too small to be seen by the naked eye Optical microscopes?are an invaluable tool for scientists as they allow for tissues, cells and organelles to ...
Edexcel A (SNAB) A Level Biology:復習筆記3.1.4 Organisation of Cells
Organisation of Cells Cell theory states that cells are the basic functional unit of all living organisms Cells can become?specialised?for?specific functions,?e.g. Epithelial cells in the small int...
