Practical 4: Separation of Photosynthetic Pigments Separation of photosynthetic pigments by chromatography Plants contain several different photosynthetic pigments, which absorb different wavelengt...
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...
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...
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 ...
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...
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 ...
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...
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 ...
Determination of mRNA Base Sequence The rules of base pairing and the table of mRNA codons are needed to be able to convert between DNA sequences, mRNA base sequences and amino acid sequences A tri...
