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All Journal Jurnal Bioterdidik: Wahana Ekspresi Ilmiah JURNAL PENGABDIAN KEPADA MASYARAKAT BIOEDUSAINS: Jurnal Pendidikan Biologi dan Sains KLOROFIL: Jurnal Ilmu Biologi dan Terapan Edumaspul: Jurnal Pendidikan Best Journal (Biology Education, Sains and Technology) Spizaetus: Jurnal Biologi dan Pendidikan Biologi Jurnal Mu'allim Journal of Education and Teaching Learning SIMBIOSA KLOROFIL: Jurnal Ilmu Biologi dan Terapan Prisma Sains: Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Khatulistiwa: Jurnal Pendidikan dan Sosial Humaniora Innovative: Journal Of Social Science Research Symbiotic: Journal of Biological Education and Science Indonesian Journal of Biology Education
Kartika Manalu
Universitas Islam Negeri Sumatera Utara
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Physics Public Health Social Sciences Other

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Uji Aktivitas Antimikroba Ekstrak Daun Randu (Ceiba pentandra L.) Terhadap Pertumbuhan Pseudomonas aeruginosa dan Candida albicans Misriani Ani; Kartika Manalu; Rizki Amelia Nasution
KLOROFIL: Jurnal Ilmu Biologi dan Terapan Vol 7, No 1 (2023): KLOROFIL: JURNAL ILMU BIOLOGI DAN TERAPAN
Publisher : Program Studi Biologi Fakultas Sains dan Teknologi Universitas Islam Negeri Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/kfl:jibt.v7i1.13740

Abstract

One of the traditional plants used by the community is the kapok plant (Ceiba pentandra L.) apart from being cultivated, parts of the kapok plant are also used as building materials, stuffing for mattresses and traditional medicine. The purpose of this study was to determine the activity of randu leaf extract on the growth of Pseudomonas aeruginosa and Candida albicans. This study used a completely randomized design (CRD) with 6 treatment groups, namely the positive control group with chloramphenicol and ketoconazole. The negative control group used 10% DMSO, and the extract concentration group was 70%, 80%, 90% and 100%. The steps carried out in this study included the extraction of kapok leaves using 96% ethanol as solvent, phytochemical screening and antimicrobial testing using the Kirby-Bauer Disc Diffusion method. Analysis of research data using SPSS 21. From the results of this study, it was found that randu leaf extract contained alkaloids, saponins and tannins. Antimicrobial testing with the kapok leaf extract group resulted in an average inhibition zone of 7.57 mm, 8.0 mm, 8.7 mm, and 9.87 mm against Pseudomonas aeruginosa and 4.67 mm, 5.07 mm, 5.32 mm, and 5.65 mm against Candida albicans. The results of the One Way ANOVA test show that Ftable < Fcount which proves that the leaf extract of Randu provides antimicrobial activity in inhibiting the growth of Pseudomonas aeruginosa and Candida albicans.
Pengembangan Virtual Laboratory Biology Pada Praktikum Pengamatan Protista Kelas X SMA Alya Febrina Nasution; Kartika Manalu; Miza Nina Adlini
Khatulistiwa: Jurnal Pendidikan dan Sosial Humaniora Vol. 3 No. 3 (2023): September : Jurnal Pendidikan dan Sosial Humaniora
Publisher : Pusat Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/khatulistiwa.v3i3.2217

Abstract

This research aims to develop learning media in the form of a virtual laboratory for practicum observing protists and to find out how to develop procedures, their practicality and their effectiveness. This research is a Research and Development (R&D) research with a 4 D research design, namely: define, design, develop, and disseminate,/1 however this research was only carried out to the develop stage due to researcher limitations. The subjects in the research were 30 class X students of SMA Negeri 1 Perbaungan. The research instruments used are validation sheets from media experts and material experts to measure the validity of the virtual laboratory, response sheets from field practitioners (Teachers) and students to measure the practicality of the virtual Laboratory. The research results show that the virtual laboratory has an appropriate category based on the percentage of validity by media expert validators of 80.33%, material expert validators of 98.66%. The virtual laboratory was declared very feasible based on the percentage obtained from student responses in phase I product trials of 92.71%, phase II product trials of 86.58%, and the percentage based on teacher responses was 100%. Recommendations for future researchers and teachers to develop a three-dimensional virtual laboratory to provide a more real experience for students when simulating a practicum.
Isolasi Bakteri Fiksasi Nitrogen dan Fosfat pada Limbah Cair Karet (Hevea brasiliensis) Sartika Kumala Dalimunthe; Kartika Manalu
BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains Vol 6 No 2 (2023): BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/bioedusains.v6i2.7398

Abstract

This research aims to determine which bacteria are capable of fixing nitrogen and dissolving phosphate in liquid rubber waste in Perdamean Village, Labuhanbatu Regency. The research method used was the description method with bacterial isolation techniques, then testing was carried out, namely the nitrogen fixation ability test and the phosphate solvent ability test. The results of the research showed that bacterial isolates capable of fixing nitrogen were found to have high absorbance values, namely 1,340 ABS. In the phosphate solubilizing ability test, there were 2 isolates that were unable to dissolve phosphate. In conclusion, isolating nitrogen and phosphate fixing bacteria in liquid rubber waste is a way to prevent pollution and destruction of the ecosystem in the environment. Keywords: Nitrogen Fixation, Rubber Liquid Waste, Phosphate Solvents
Pengaruh Model Pembelajaran Kooperatif Tipe Jigsaw Pada Materi Sistem Pernapasan Yang Terintegrasi Al-Qur’an Surah Al-An’am Terhadap Hasil Belajar Sri Agusna; Kartika Manalu
Symbiotic: Journal of Biological Education and Science Vol. 3 No. 1 (2022): Symbiotic: Journal of Biological Education and Science Vol. 3 No. 1 April 2022
Publisher : Institut Agama Islam Negeri Kerinci

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32939/symbiotic.v3i1.53

Abstract

ABSTRACT This study aims to determine the effect of the jigsaw type cooperative learning example on student learning outcomes in the integrated respiratory system material Al-Qur’an Surah Al-An’am in class VIII MTs.S PPM Babussalam. The population in this study means all students of class VIII, totaling 108 students. The sample used was class, totaling27 students and class VIII-3 being the experimental class, totaling 27 students. Data analysis was performed using t test. What will happen is the analysis of the t-count value of 4.425> the t-table value of 2.006 which gives the effect of student learning outcomes using the jigsaw type cooperative learning example on the learning outcomes of class VIII MTs.S PPM Babussalam student. The post test result of students in the experimental class have a big effect. Holistically, students answers include good criteria.
Investigating The Influence of The Project Based Learning Model on Students Creative Thinking During Digestive System Learning Andini Dwi sekar; Kartika Manalu; Miza Nina Adlini
Indonesian Journal of Biology Education Vol. 7 No. 1 (2024): INDONESIAN JOURNAL OF BIOLOGY EDUCATION
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/ijobe.v7i1.1415

Abstract

This research investigates the effect of the Project Based Learning (PjBL) model on students' creative thinking during the digestive system learning at SMAS Brigjend Katamso II. This type of research is a quasi-experiment with a non-equivalent control group design. The population of this study was all XI students at SMAS Brigjend Katamso II, which consisted of 4 classes with a total of 135 students. The research sample using the Cluster Random Sampling technique consisted of two classes: Science 2 with 34 students as the experimental class and Science 3 with 34 students as the control class. The research instrument used was a description test consisting of 4 questions to measure students' creative thinking abilities. This research hypothesis was carried out using the T-test with normal and homogeneous conditions. The results of the post-test analysis of the T test obtained tcount 4.34 and ttable 1.69, thus showing the hypothesis test results that tcount > ttable where Ha was accepted and Ho was rejected. So, there is the influence of the project based learning model on the ability to think creatively about the digestive system material for class XI SMA/MA students.
Isolasi dan Identifikasi Bakteri Asam Laktat dari Hasil Fermentasi Limbah Organik Kulit Buah (Eco-Enzyme) Linda Syafitri Siagian; Kartika Manalu; Rizki Amelia Nasution
BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains Vol 7 No 1 (2024): Bioedusains: Jurnal Pendidikan Biologi dan Sains
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/bioedusains.v7i1.9967

Abstract

The aim of this research is the isolation and identification based on the morphological characteristics of lactic acid bacteria in the fermentation of organic waste from fruit peels. Isolation of Lactic Acid Bacteria was carried out using the spread plate method on de Man, Rogosa, and Sharpe Agar (MRSA) media. The culture was incubated at 37 °C for 48 hours. The growing colonies were observed for morphological characteristics, and bacterial Gram staining was carried out. The results of the research showed that 10 bacterial isolates were obtained from the isolation of BAL from ecoenzymes on de Man, Ragosa, and Sharpe Agar (MRSA) media, namely E-BAL 01, E-BAL 02, E-BAL O3, E-BAL 04, E-BAL 05, E-BAL 06, E-BAL 07, E-BAL 08, E-BAL 09, and E-BAL 10, and 10 isolates were characterized as Gram-positive with a bacillary cell form. In conclusion, 10 isolates were found with characteristics that supported MRSA media, namely isolates of lactic acid bacteria of the genus Lactobacillus. This is confirmed by the results of biochemical tests, namely that it is immobile, does not produce the catalase enzyme, and does not have the ability to produce gas. Keywords: Lactic Acid Bacteria (LAB), Ecoenzymes, Fruit Skin
Isolasi dan Identifikasi Bakteri Endofit Penghasil Hormon IAA (Indole Acetic Acid) dari Akar Tanaman Mangrove Avicennia marina Suci Ramadani Pohan; Kartika Manalu; Rizki Amelia Nasution
BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains Vol 7 No 1 (2024): Bioedusains: Jurnal Pendidikan Biologi dan Sains
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/bioedusains.v7i1.9968

Abstract

This research aims to determine the genus and potential isolates of endophytic bacteria producing IAA hormone from the roots of mangrove plants in Tanjung Rejo village, Percut Sai Tuan subdistrict. The research methods used include isolating endophytic bacteria using the plant method in NA (Nutrient Agar) media then culturing them in NB (Nutrient Broth) media then adding L-tryptophan and incubating, then identification is carried out based on morphological characterization, gram staining and biochemistry. The results of the research showed that 13 isolates of endophytic bacteria were found that had the potential to produce IAA hormones ranging from 0.047-0.050 ppm which were identified as the genus Enterobacter, Pseudomonas, Bacillus, Azosprilium, Micrococcus. However, the isolates BEAM PA 2 of the genus Enterobacter and BPAM PE 6 of the genus Micrococcus had the highest value of 0.050 ppm. The conclusion from this research is that the endophytic bacteria obtained as a whole have the ability to produce the hormone IAA. Keywords: Endophytic Bacteria, IAA (Indole Acetic Acid), Mangrove Avicennia marina
Development of Encyclopedia on Reproductive System Material for Class XI at Hang Tuah Belawan High School Iftitah Pranriska; Kartika Manalu
Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Vol 12, No 3: July 2024
Publisher : IKIP Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/j-ps.v12i3.12226

Abstract

This study was undertaken to address the issues identified during preliminary research, which revealed that teachers were still using packaged books and worksheets as their teaching materials. Based on these findings, the researchers became interested in developing teaching materials in the form of encyclopedias. Encyclopedias have the advantage of being both a source of information and a teaching aid. The objective of this study was to develop a valid, practical, and effective encyclopedia on the topic of the reproductive system. The research methodology employed in this study was Research and Development (R&D), utilizing the 4-D development model, which encompasses the stages of define, design, develop, and disseminate. Validity, practicality, and effectiveness instruments were used as research tools, and data analysis was conducted using a Likert scale. The results revealed that the encyclopedia met the criteria for validity (as determined by 92% of teaching material experts and 83% of content experts), practicality (as reported by 95% of teachers and 84% of students), and effectiveness (as demonstrated by an increase in pretest scores from 56.22 to a posttest score of 89, resulting in an N-Gain of 0.75, with a percentage of 75%). Therefore, it can be concluded that the reproductive system encyclopedia is valid, practical, and effective, making it suitable for use in learning activities. The development of this reproductive system encyclopedia has significant implications for the learning process, particularly in terms of adopting a more comprehensive learning approach. The encyclopedia provides extensive and in-depth information, fostering a more holistic learning experience and transforming the role of the teacher into that of a facilitator who assists students in navigating and comprehending information.
Co-Authors Adha Siagian Almadina Septiyah Alya Febrina Nasution Andini Dwi sekar Asti Hanipah Deni Veronika Sihombing Dian Dara Purba Edty Widya Ningsih Harahap Efrida Pima Sari Tambunan Erlinda Marito Pulungan Fitri Asyiah Lubis Hasni Aida Hera Dewi Syahrani Iftitah Pranriska Ika Anindia Putri Kahiruddin Kahiruddin Khairani Khairani Khairuddin Khairuddin Linda Syafitri Siagian Melfa Aisyah Hutasuhut Misriani Ani Miza Nina Adlini Muhammad Akram Sya&#039;rawi Nadila Husnah Nurul Khairunnisa Sofyan Nurul Miftahul Jannah Oki Permata Sari Pristika Ningsih Rahmadina Rahmadina Rasyidah Riris Nurkholidah Rambe Rizki Amelia Nasution Rizky Ananda Rohani Rohani Sartika Kumala Dalimunthe Sartika Putri Sofiana Gultom Sri Agusna Suci Ramadani Pohan Thoibah Sinaga Tiara Ayunda Putri Ulfayani Mayasari Ummi Nur Afinni Dwi Jayanti Yulia Ananda Simarmata