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Eko Sri Wahyuni
Pendidikan Biologi FKIP Universitas Tanjungpura
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Journal : Jurnal Biotek

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Meningkatkan Hasil Belajar Peserta Didik dengan Model Pembelajaran Kooperatif Berbantuan Flashcard Materi Klasifikasi Makhluk Hidup Salbiah, Salbiah; Titin, Titin; Wahyuni, Eko Sri; Ningsih, Kurnia; Yuniarti, Anisyah
Jurnal Biotek Vol 12 No 2 (2024): DESEMBER
Publisher : Department of Biology Education of Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jb.v12i2.48340

Abstract

This study aimed to improve the learning outcomes of seventh-grade students in class VII A at SMPN 22 Pontianak on living organisms' classification through a cooperative learning model assisted by flashcards. The Classroom Action Research (CAR) model has two cycles, each including four stages: planning, implementation, observation, and reflection. Data collection methods involved the learning outcome tests, observation sheets, and documentation. This research focused on analyzing changes in students' understanding of active and interactive learning strategies using flashcards. The results showed a significant improvement in student learning outcomes; the mastery level was 81.25% in the first cycle, which increased to 87.50% in the second cycle. This increase indicates that the cooperative learning model assisted by flashcards not only enhances student engagement in the teaching-learning process but also effectively strengthens their understanding of the material on the classification of living organisms. The findings suggest that integrating cooperative methods with visual aids, like flashcards, can be an effective pedagogical strategy to enhance the quality of education in schools.
Uji Antibakteri Ekstrak Batang Bajakah Berduri (Caesalpinia sumatrana Roxb.) terhadap Salmonella typhi ATCC 19430 Mufidah, Annisa Nabilah; Yeni, Laili Fitri; Wahyuni, Eko Sri
Jurnal Biotek Vol 12 No 2 (2024): DESEMBER
Publisher : Department of Biology Education of Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jb.v12i2.50061

Abstract

Thorny bajakah (Caesalpinia sumatrana Roxb.) is a plant from the Fabaceae family known to contain secondary metabolites with antimicrobial activities. This study aimed to examine the antibacterial activity and the effect of variation in the concentration of thorny bajakah stem extract against Salmonella typhi ATCC 19430. The samples included thorny bajakah stem extracts at concentrations of 12.5%, 25%, 50%, and 100%, along with a negative control (10% DMSO) and a positive control (0.001% chloramphenicol). Extraction was done using maceration with 96% ethanol as the solvent, while an antibacterial test was carried out using the disc diffusion method. Antibacterial tests showed the inhibition zones by each treatment of 12.5%, 25%, 50%, and 100% were 3.05 mm, 3.89mm, 3.69mm, and 4.56mm. The 100% concentration extract has the highest average diameter of the inhibition zone, even though it is considered very weak according to the Morales standard (<6mm). The antimicrobial activity is affected by the composition of secondary metabolites in the extract present as alkaloids and terpenoids, which are known to have antimicrobial activity. These results provide a basis for further research to develop the potential of thorny bajakah as a plant-derived antibacterial agent.
Co-Authors ,, Gorgonia -, Syamswisna . Bahtiar A.A. Ketut Agung Cahyawan W Afandi Afandi Afandi Agresi, Embun Alexandra Jeni Yoesianata Andri Maulidi Anisyah Yuniarti Annisa Nabilah Mufidah Aprianty, Vetty Aprilianti, Melda Apriyani, Nina Asriah Nurdini M. Ayu Kartika Ayu Wulandari Ayu, Nambisas Arum Kusuma Banyu, Baras Basuki Hardigaluh Budiman, Muhammad Sholid Dahlia Dahlia Dian Aprilia Manase Dinda Puspita Sari Dinda Triana Dwitia, Widi Eka Ariyati Eka Irvianti Pratiwi Ela Elisa Entin Daningsih Erma Erma Evi Kurniawati, Evi Fadhelia Maudy Fajri, Hayatul Febriani, Sherly Ferella, Elsa Filza, Inne Aqmarina Fitriani Fitriani Galih Albarra Shidiq Gusti Fawwaz Setyo Habibina Habibina Hairunnisa Novita Z Harmistri, Yolanda Olivia Hartati, Angel Tri Hendra, Beni Heny Pertiwi Hidayati, Nadia Hilda Aqua Kusuma Wardhani Ikhwarizmy, Sahdika Muhammad Ilham Kholik Jamhari Jamhari Juniardi, Dodi Junika Mandasari Kardiani, Vina Kartiani, Nurul Atikah Kurnia Ningsih Kusniawati, Kusniawati Kusuma Yuda Laili Fitri Yeni Lazuardi, Raden Lijana, Lijana Liya Angga Lestari, Liya Angga Mandasari, Junika Mas Akbar Faturrahman Mauliana, Voni Mega Mega Meliati, Sulisma Milianti Milianti Milianti, Milianti Mirawati Mirawati Mitalia, Mitalia Mitha Mitha, Mitha Mufidah, Annisa Nabilah Muhammad Saifudin Murni, Odela Priscilia Mutmainnah Mutmainnah Nabila, Nuruliza Nadia, Fitria Salwa Nanda Emilia Nanda Zakiyyatulmuna Natalia, Agus Natasya, Dea Fitri Nia, Mita Nova Ningsih, Kurnia Novitasari Novitasari Nur Annisa Nurfadillah, Rezkiana Nurkholifah, Risma Nurul Andarwatiningrum Nusantoro, Bagus Pratomo Pera Mairita Pertiwi, Kharisma Ananda Prasetiawan, Vebri Pratiwi, Anggi Dwi Puspita, Farah Putri Anggraini Putri, Ruqiah Ganda Qurratul Aini Rahmawati, Linda Rahmayani, Cici Rexy Maulana Dwi Karmadi Rialisdiana, Rialisdiana Riana, Linda Risfi Pratiwi Sutrisno, Risfi Pratiwi Rosanti, Melsinta Ruqiah Ganda Putri Panjaitan Sa&#039;adah Purnamasari Salbiah Salbiah Salbiah, Salbiah Sandra, Klaudia Mareta sari, Desti Puspita Sari, Dwi Nilam Sari, Hertika Sari, Natalia Wulan Sayuti Sayuti Serina, Serina Shinta Rani Juwita Putri Sinaga, Yuslaina Sindy Desiani Siti Khadijah Siti Komaria Siti Komaria Solly Aryza Sri Wahyuni Sulistiyowati, Erni Susi Anggraini Suwanda, Dewi Portuna Syahrina, Syahrina Syamswisna , Syavira Indriyani Taek, John kenedi Marcel Tenriawaru, Andi Besse Tesalia Vika Arista Titin Titin Titin . Titin Titin Titin Titin Tri Aulia Tri Kristiana Tri Kristiana ulfa, mutia Virda, Dimas Ananda Wahyuni, Titik Widya Wilma Wilma, Wilma WOLLY CANDRAMILA Yanti, Ade Yoga Febriyanda Yokhebed Yokhebed Yonatan, Amandus Yuliarsih, Asih YUNITA Yunita, Andini Rika