Dosage and usage of hydrochloric acid and alcohol in high school biology experiment The name of the experiment should be specified For example, 8% hydrochloric acid is used to observe the distribution of DNA and RNA, and change the permeability of cell membrane Ask for specific and complete answers
(1) 1.2 principle: Sudan III is a weak acid dye, which is easily soluble in 50% alcohol. 1.3 application: fat identification experiment. In this experiment, after dyeing peanut cotyledon slices with Sudan III, 1-2 drops of 50% alcohol were dropped on the slices