Experiments for the quantitative determination of chlorophyll
According to the absorption spectrum of chlorophyll on visible light, the use of spectrophotometer at a particular wavelength to determine its optical density,
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Experiments on the substitution of hydrogen and copper for magnesium in chlorophyll
Chlorophyll molecule has a porphyrin ring, its magnesium ions are located in the center of the porphyrin ring, chlorophyll molecule is more unstable, in contact
Experiments on the absorption spectra of chlorophyll and carotenoids
Because chlorophyll and carotenoids have different molecular structures, they have different absorption spectra. Carotenoids absorb blue-violet light and chloro
Simple identification experiments of plant dehydrogenases
Respiration can be thought of as a series of oxidative and reductive actions, the intermediate steps of which are facilitated by a variety of oxidative and redu
Simple identification experiments of plant peroxidases
Peroxidases are metalloproteins containing iron in the porphyrin ring. Peroxidase forms a compound with hydrogen peroxide in which the hydrogen peroxide is acti
Experiments on the compositional analysis of plant wounding fluids
Plant root system is not only an important organ to absorb water and mineral elements, but also an important synthetic organ, plant absorbed inorganic salts, so
Experiments on the determination of water potential in plant tissues by the small fluid flow method
The water status of plant tissues can be expressed in terms of water potential. The magnitude of the water potential of plant tissues can, to a certain extent,
Experiments on the selective uptake of mineral elements by plant roots
Monosalt toxicity and antagonism are related to hydrophilic colloids in protoplasm and protoplasmic membranes; the higher the ionic valence, the lower the conce
Simple identification experiments of plant oxidizing enzymes
Oxidases dehydrogenate from metabolites and allow them to combine directly with oxygen to produce water or hydrogen peroxide. Examples include cytochrome oxidas