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

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