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
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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
Experiments on the separation of liquid bubbles
Tear the epidermis of purple onion or radish leaves, put it on a slide, add a little drop of water and then cover the coverslip, observe the cells in the prepar
An experiment to determine the osmotic potential of plant tissues
Plant tissue into a series of increasing concentrations of sucrose or mannitol solution, after a certain period of time to achieve osmotic equilibrium, the cell
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
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
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 determination of photosynthetic intensity of plants
According to the similarity of the structure and physiological function of the two sides of the leaf midvein, you can first cut off half of the leaf in the dark