IB DP Biology: SL復習筆記3.1.4 Genome
Genome The?total of all the genetic information in an organism?is called the?genome?of the organism This is a?complete set of genes?present within every cell of an organism This includes?all genes?...
IB DP Biology: SL復習筆記3.1.3 Mutation
Mutation A?gene mutation?is a change in the sequence of base pairs in a DNA molecule; this may result in a new allele Mutations occur?all the time?and?at random There are certain points in the cell...
IB DP Biology: SL復習筆記3.1.2 Alleles
Alleles A gene codes for a specific polypeptide that can affect a specific trait or characteristic in an organism Eg. blood type Alternative forms of a gene?can exist, these various specific forms ...
IB DP Biology: SL復習筆記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復習筆記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復習筆記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復習筆記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復習筆記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復習筆記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...
