PERBANDINGAN LARUTAN BUAH PINANG (Arecha catechu L) DAN DAUN SIRIH HIJAU (Piper betle L) TERHADAP KEJELASAN JARINGAN HATI SEBAGAI ALTERNATIF PEWARNA ALAMI PREPARAT JARINGAN SEBAGAI SUMBER BELAJAR BIOLOGI

Fruit Arecha catechu L and leaf Piper betle L are plants that contain pigments that can be used as natural dyes for tissue preparations. This studyaims to determine the differences in liver tissue clarity using natural Arechacatechu L and leaf Piper betle L, determine the natural coloring solution ofArecha catechu L and Piper betle L the best for the clarity of tissuepreparations and research results can be used as a source of high schoolbiology learning in the form of practical instructions. Research conducted at the Integrated Science Laboratory of the Universitas of Muhammadiyah Metro in May 2019, the results of a photoanalysis of liver tissue preparations with natural dyes fruit Arecha catechu Lobtained percentage on criteria 1 "very clear and very contrast" (46.66%),criterion 2 "unclear and contrastless" (40%) and criterion 3 "unclear andnon-contrasting" (13.33%), while the percentage results obtained on photos ofliver tissue preparations with natural dyes of leaf solution Piper betle L incriterion 1 "very clear and very contrasting" (40%), criterion 2 "unclear andless contrasting" (40%) and criterion 3 "unclear and not contrasting" (20%).The results of this study were compiled as a source of learning biology in theform of practical instructions and validated by two expert lecturers, obtainingan average percentage of 88% with the criteria of "Very Good"