IB DP Biology: HL复习笔记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: HL复习笔记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: HL复习笔记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: HL复习笔记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: HL复习笔记1.2.9 Skills: Cell Origin & Ultrastructure
Interpreting Electron Micrographs Identify whether it is a prokaryotic or eukaryotic cell - is a nucleus present Identify which eukaryotic cell it is (plant or animal) by looking for a cell wall or...
IB DP Biology: HL复习笔记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: HL复习笔记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 structu...
IB DP Biology: HL复习笔记1.2.6 Comparison of Prokaryotic & Eukaryotic Cells
Comparison of Prokaryotic & Eukaryotic Cells Animal and plant cells are types of eukaryotic cells, whereas bacteria are a type of prokaryote There are a number of important structural and physi...
IB DP Biology: HL复习笔记1.2.5 Exocrine Pancreatic & Palisade Mesophyll Cells
Exocrine Pancreatic & Palisade Mesophyll Cells Exocrine gland cells of the pancreas The pancreas contains two types of gland cells: endocrine and exocrine cells The function of the exocrine gla...
