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
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
Within living cells, the phenomenon of active movement of protoplasm is collectively known as protoplasmic movement. Protoplasmic movement is one of the importa
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
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
Modified half-leaf method is part of the plant symmetrical leaf shade or remove placed in the dark, the other part is left in the light for photosynthesis, afte
Respiration intensity is one of the most important indicators of plant life activity and is necessary to be measured in plant physiological research and product
The study of plant stress tolerance is important in scientific research and is closely related to production, so it is often necessary to measure the magnitude
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
The proline content in plants increases when they are dehydrated. The proline content in plants reflects the water situation in plants to a certain extent, and
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