IB DP Biology: SL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 structure In s...
IB DP Biology: SL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: SL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...
IB DP Biology: SL复习笔记1.2.4 Eukaryotic Cell Structure
Eukaryotic Cell Structure Compartmentalized cell structure Eukaryotic cells have a more?complex ultrastructure?than prokaryotic cells The cytoplasm of eukaryotic cells is divided up into?membrane-b...
IB DP Biology: SL复习笔记1.2.3 Prokaryotic Cell Structure
Prokaryotic Cell Structure The cell structure of organisms determines whether they are?prokaryotic?or?eukaryotic Prokaryotes have the?simplest cell structure, being the first organisms to evolve on...
IB DP Biology: SL复习笔记1.2.2 Endosymbiotic Theory
Endosymbiotic Theory Endosymbiosis Endosymbiosis is where one organism lives within another If the relationship is?beneficial?to both organisms the engulfed organism is not digested For endosymbios...
IB DP Biology: SL复习笔记1.2.1 Origin of Cells
Spontaneous Generation Pre-existing cells In 1852 Robert Remak made the conclusion that cells divided to form new cells, that is cells came from?pre-existing cells His conclusion was reached after ...
IB DP Biology: SL复习笔记1.1.6 Skills: Cell Theory
Practical 1: Using a Microscope Many biological structures are too small to be seen by the naked eye Optical (light) microscopes are an invaluable tool for scientists as they allow for tissues, cel...
IB DP Biology: SL复习笔记1.1.5 Stem Cells
Stem Cells A?stem cell?is a cell that can?divide?(by mitosis) an?unlimited number of times Each new cell (produced when a stem cell divides) has the potential to?remain a stem cell?or to develop in...
