IB DP Biology: SL復(fù)習筆記1.4.2 Phases of Mitosis
Phases 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 hav...
IB DP Biology: SL復(fù)習筆記1.4.1 Cell Cycle
Interphase 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 cell c...
IB DP Biology: SL復(fù)習筆記1.3.7 Skills: Estimation of Osmolarity
Practical 2: Estimation of Osmolarity NOS: Experimental design; accurate quantitative measurements in osmosis experiments are essential Planning is an essential part of experimental biology, it wil...
2022年北京公立學(xué)校國際部招生信息匯總！
已經(jīng)進入8月，相信家長和學(xué)生們也開始考慮規(guī)劃明年的擇校。現(xiàn)在帶大家回顧一下2022年21所公辦校國際部的招生名額、學(xué)費、加試分數(shù)線相關(guān)信息，供大家參考。 招生信息匯總目錄 北師大附屬實驗中學(xué)國際部 北京四中...
IB DP Biology: SL復(fù)習筆記1.3.6 Skills: Membrane Structure & Transport
Drawing the Fluid Mosaic Model Membranes Membranes are?vital?structures found in all cells The?cell surface membrane?creates an enclosed space separating the internal cell environment from the exte...
IB DP Biology: SL復(fù)習筆記1.3.5 Active Transport & Bulk Transport
Active Transport Active transport is the?movement of molecules and ions through a cell membrane from a region of lower concentration to a region of higher concentration using energy from respiratio...
IB DP Biology: SL復(fù)習筆記1.3.4 Membrane Transport
Passive Transport Simple diffusion Simple diffusion is a type of?transportation?that involves particles passing between phospholipids in?the plasma membrane It can be defined as: The net movement, ...
IB DP Biology: SL復(fù)習筆記1.3.3 History of Fluid Mosaic Model
History of Fluid Mosaic Model NOS: Using models as representations of the real world; there are alternative models of membrane structure Scientists use models to represent real world ideas, organis...
IB DP Biology: SL復(fù)習筆記1.3.2 Membrane Proteins
Membrane Proteins The phospholipid bilayer carries out the main function of the plasma membrane - to control the movement of substances into and out of the cell The other functions are carried out ...
IB DP Biology: SL復(fù)習筆記1.3.1 Phospholipid Bilayer Properties
Amphipathic Properties Phospholipids Phospholipids form the basic structure of the membrane (the phospholipid bilayer) They are formed by a?hydrophilic?phosphate head?bonding with two?hydrophobic?h...
IB DP Biology: SL復(fù)習筆記1.2.8 Skills: Drawing Cells
Drawing Cells Drawing the ultrastructure of cells To record the observations seen under the microscope (or from photomicrographs taken) a labelled biological drawing is often made Biological drawin...
IB DP Biology: SL復(fù)習筆記1.2.7 Microscopes
Electron & Light Microscopes NOS: Developments in scientific research follow improvements in apparatus; the invention of electron microscopes led to greater understanding of cell structure In s...
