Experimental morphological observations on vesicles in young wheat roots
The tip of the germinating wheat embryonic root was cut (about 1 cm from the tip) and immersed in neutral red solution for live staining for 10-15 min, then rem
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Experiments on the fluorescence phenomenon of chlorophyll
Matter has different energy states, some electrons in the matter absorbed the energy of light quanta, the matter from the original stable state of the energy le
Catalase activity assay experiment
H2O2 is strongly absorbed at 240 nm, and catalase decomposes hydrogen peroxide, causing the absorbance of the reaction solution (A240) to decrease with reaction
Chlorophyll saponification assay
Chlorophyll is an ester of a dicarboxylic acid that saponifies with a base to form a basic salt of chlorophyllic acid; after the formation of the salt, chloroph
Protoplasm isoelectric point measurement experiment
Protoplasm's main constituent -- protein for amphoteric compounds, it is in different pH medium, its dissociation is different: when the medium's pH value is mo
Plant respiration intensity measurement experiment
The intensity of respiration can be expressed as the number of CO2mg released per unit weight of plant material per unit time. The CO2 released by respiration i
Experiments on the separation of chloroplast pigments by paper chromatography
The various pigments in chloroplast pigments have different chemical structures, and thus their physicochemical properties such as polarity, absorption spectra,
Experiments on oxidation and phosphorylation in isolated mitochondria
When sufficient oxygen is supplied to plant tissues, plant cells can oxidize substrates completely. When glucose is fully oxidized as a respiratory substrate, C
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