IB DP Biology: SL复习笔记3.1.1 Genes
Genes & Polypeptides A gene is a section or?length of DNA?that codes for a?polypeptide Genes are?heritable factors?that influence specific?characteristics?(via the polypeptides produced) Charac...
IB DP Biology: SL复习笔记2.8.4 Skills: Separating Photosynthetic Pigments
Practical 4: Separation of Photosynthetic Pigments Separation of photosynthetic pigments by chromatography Plants contain several different?photosynthetic pigments, which?absorb different wavelengt...
IB DP Biology: SL复习笔记2.8.3 Skills: Photosynthesis
Absorption & Action Spectrums An?absorption spectrum?(for a particular pigment) shows how much light of different wavelengths is absorbed by the pigment An?action spectrum?shows how each wavele...
IB DP Biology: SL复习笔记2.8.2 Photosynthesis Continued
Effects of Photosynthesis Changes to the Earth’s atmosphere, oceans and rock deposition occur due to photosynthesis The?first life forms?emerged around 4 billion years ago At the time, there was?no...
IB DP Biology: SL复习笔记2.8.1 Photosynthesis
Photosynthesis Defined Simple, inorganic compounds?are converted into complex organic ones by photosynthesis The energy required is provided by?light Photosynthesis occurs in?autotrophic?organisms ...
IB DP Biology: SL复习笔记2.7.4 Skills: Respiration
Respirometer Analysis of results from experiments involving measurement of respiration rates in germinating seeds or invertebrates using a respirometer Respirometers are used to measure and investi...
IB DP Biology: SL复习笔记2.7.3 Aerobic Respiration
Aerobic Respiration Aerobic cell respiration requires oxygen and gives a large yield of ATP from glucose The presence of oxygen allows glucose to be?broken down fully?into carbon dioxide and water ...
IB DP Biology: SL复习笔记2.7.2 Anaerobic Respiration
Anaerobic Respiration: ATP Yield In cells, there is a much?lower energy yield?from respiration in?anaerobic conditions?than in aerobic conditions There can be different ways in which oxygen becomes...
IB DP Biology: SL复习笔记2.7.1 Cellular Respiration
Cellular Respiration Defined Cell respiration is the controlled release of energy from organic compounds to produce ATP Respiration is a?series of chemical reactions?that happens in?every cell Its ...
