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Bioscientist : Jurnal Ilmiah Biologi
Published by Universitas Pendidikan Mandalika
ISSN : 23385006     EISSN : 26544571     DOI : https://doi.org/10.33394
Core Subject : Science, Education, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology Social Sciences
Bioscientist : Jurnal Ilmiah Biologi (BJIB), receiving and publishing article in the form of research (scientific article) in the field of biology education and utilization of biological research in learning. Moreover, this journal bridges the gap between research and practice, providing information, ideas and opinion, in addition to critical examinations of biology research and teaching. Through the coverage of policy and curriculum developments, the latest results of research into the teaching, learning and assessment of biology are brought to the fore. Special emphasize are as follow: 1. Research on Learning Biology (Biology Learning Materials at All Education Levels). 2. Pure Research of Biology Developed or Studied to the Sources, Materials, or Instructional Media Biology (Biology Learning Materials at All Education Levels and Application in Society). 3. Curriculum of Biology Education at all Education Levels. 4. Class Action Research (CAR) and Lesson Study in Biology. 5. Other Qualitative Research of Biology Education. 6. The School Management and Biology/Science Laboratory Management. 7. Biology Learning Evaluation. 8. Teacher Professional Issues/Trends in Biology Education. 9. Another Study for the Scope of Biology Education. 10. Research on Environmental Education.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 1,439 Documents
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Tinjauan Etnozoologi Terkait Larangan Penyembelihan Sapi (Bos taurus) di Kudus Menurut Filosofi Ajaran Sunan Kudus Adillah, Dzuhrotin; Banati, Olivia; Fashihah, Anna Bariroh; Nada, Shofwatun
Bioscientist : Jurnal Ilmiah Biologi Vol. 12 No. 2 (2024): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v12i2.12047

Abstract

The study of ethnozoology is closely related to local culture and knowledge and their interaction with the surrounding environment. Islam was brought to Kudus by Ja'far Shadiq, known as Sunan Kudus, using a unique da'wah strategy, namely, the fatwa on the prohibition of cow slaughter for the people of Kudus. The social tradition of the community regarding the prohibition of slaughtering cattle, makes the Kudus area more likely to consume buffalo meat than beef. The purpose of this research is to find out the ethnozoological perspective related to the prohibition of cattle slaughter (Bos taurus) according to the philosophy of the teachings of Sunan Kudus in socio-cultural and economic life. The research method used is qualitative field research with qualitative description analysis techniques. Data collection was conducted through observation, literature review and interview results related to general knowledge of customary, cultural and ethnozoological aspects in depth with informants. The data were analyzed descriptively qualitatively by making transcripts of the interview results which were written carefully taking and recording important information with the research context. The research was conducted in several areas of Kudus, including Kirig Village, Ngembalrejo Village, and Dawe District. Based on the results of the research, the fatwa on the prohibition of slaughtering cows in Kudus has been believed by the community from the past until now, but the results show that there are still some Kudus people who slaughter cows, one of which is the Muhammadiyah Islamic group, besides that, the Kudus community utilizes buffaloes as a function of cows, all of which go back to their respective beliefs because there are still many cattle breeders found to be traded.
Implementasi Metode Pembelajaran Jelajah Alam Sekitas (JAS) untuk Meningkatkan Motivasi dan Keterampilan Proses Sains Mahasiswa pada Matakuliah Morfologi Tumbuhan Royani, Ida; Imran, Ali; Dharmawibawa, Iwan Doddy
Bioscientist : Jurnal Ilmiah Biologi Vol. 12 No. 1 (2024): June
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v12i1.12066

Abstract

The aim of the research is to increase the motivation and science process skills of second semester biology students in the Plant Morphology course using the Environmental Exploration (JAS) method. The background to this research is the lack of direct use of learning resources from nature by students, learning resources usually come from books, direct materials and learning media provided by course lecturers. The subjects in this research were biology students at the Mandalika Education University (UNDIKMA) second semester of the 2023/2024 academic year. The type of research used is PTK using questionnaire instruments and observation sheets. The results of research on the implementation of the use of environmental exploration methods can increase students' learning motivation in cycle II, showing the highest score, namely 168 and the lowest score, namely 129, with an average score of 148.34 from a total sample of 25 students. This indicates an increase in students' learning motivation and can improve students' science process skills in plant morphology courses in the 2023/2024 academic year.
Evaluasi Kandungan Fitokimia, Kapasitas Antioksidan, dan Toksisitas Ekstrak Daun Stevia rebaudiana Frankson, Desvin; Hendrawan, Siufui; Ferdinal, Frans
Bioscientist : Jurnal Ilmiah Biologi Vol. 12 No. 2 (2024): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v12i2.12151

Abstract

Oxidative stress leads to numerous clinical problems, such as autoimmune, vascular and respiratory impairment, as well as many other degenerative diseases. While daily exposure to UV light, air pollution, and smoke largely contribute to oxidative stress, endogenous antioxidants mostly fail to neutralize these high amounts of free radicals. Stevia rebaudiana or “candyleaf” is largely found in Indonesia, known for its application as a natural sweetener, owing to its content of stevioside compound. This study is experimental research which aims to assess the potential of stevia extract as an antioxidant supplement, which has not been widely applied. In vitro study was performed by extracting stevia leaves in methanol through simple maceration and percolation methods. Subsequently, the stevia extract was subjected to biochemical analysis, i.e. phytochemical screening, total phenolic content assay, antioxidant capacity assay, and toxicity assay. Herein, we found that stevia extract contains flavonoid, saponin, tannin, terpenoid, and phenolic compounds, with total phenolic content of 86.30±1.14 mg GAE/g DW. Moreover, antioxidant capacity assay through 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid (ABTS) method showed that IC50 of stevia extract is 20.13 µg/mL, slightly higher than Trolox (vitamin E analog) with IC50 of 16.50 µg/mL, which indicated that stevia extract is a very strong antioxidant. As for toxicity bioassay, Brine Shrimp Lethality Test indicated that stevia extract is non-toxic with LC50 value of 3388.44 µg/mL.
Analisis Metode Praktikum Berbasis Literasi Sains pada Pembelajaran IPA Kelas VII di SMP Swasta Bhayangkari 3 Sari, Ginanjar; Sari, Novi Fitriandika; Dimenta, Rivo Hasper
Bioscientist : Jurnal Ilmiah Biologi Vol. 12 No. 1 (2024): June
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v12i1.12155

Abstract

Studies on contemporary scientific education have shown that classroom teaching has an impact on students' use of literacy-deficient practical exercises. Consequently, the existing approach of teaching science is significantly deficient and must be substituted. The objective of this descriptive qualitative research is to assess the effectiveness of the Science Literacy-Based Practicum Method in Science Instruction for seventh grade students at SMP Swasta Bhayangkari 3. The sample for this study consisted of thirty seventh graders from SMP Swasta Bhayangkari. Both teachers and students were provided with a questionnaire to complete, and data was gathered via interviews based on their responses. The results indicate that 19.94% of students demonstrate a strong understanding of scientifically explaining phenomena. Additionally, 8.60% of students are able to evaluate and design scientific investigations, while 9.28% of students understand how to interpret data and evidence. According to the findings of this research, integrating a practicum focused on literacy into the learning process is an effective method for promoting student performance and attaining learning goals.
Efek Skarifikasi Air Panas Dengan Variasi Suhu Dan Waktu Pada Perkecambahan Biji Kacang Hijau (Vigna radiata L.) Setiyanto, Afif Eka Rahma; Munawarti, Aminatun
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 2 (2025): June
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v13i2.12176

Abstract

This study aims to analyze the effect of initial temperature variation and hot water scarification time on the germination of mung bean seeds. Seeds measuring 0.2 ± 0.05 cm in size and dark green in color were scarified using various scarification treatments, namely control (without scarification) (P0), room temperature for 10 minutes (P1), room temperature for 60 minutes (P2), 35°C for 10 minutes (P3), 35°C for 60 minutes (P4), and 55°C for 10 minutes (P5), with a germination period of seven days. The experimental design used was a completely randomized design with four replications, each replication using 25 seeds. The parameters observed were germination percentage, germination rate index, germination rate, radicle length, and plumule length. The best germination percentage and germination speed index were produced by the control (P<0.05). The best germination rate was produced by the P3 temperature treatment. Radicle length and plumule length did not differ significantly (P<0.05) across all treatments. Hot water scarification with varying temperatures and times in this study did not induce better mung bean germination than the control.
Pengembangan Penuntun Praktikum Pada Materi Sel dan Pelintasan Zat Melalui Membran Kelas XI SMA/MA dengan Pendekatan Inkuiri Bebas Dimodifikasi Nurhadi, Nurhadi; Zural, Mimin Mardhiah; Oktafially, Dora
Bioscientist : Jurnal Ilmiah Biologi Vol. 12 No. 2 (2024): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v12i2.12184

Abstract

During the 11th-grade biology practicum at SMA/MA, students use biology textbooks from the library and worksheets written by the teacher on sheets of paper as guides for their exercises. However, the availability of biology books in the library is insufficient, and not all students can access them. This research aims to develop a practicum guide on human mobility material for 11th-grade SMA/MA students using a modified free inquiry approach. This development research uses the Plomp model, which consists of three development phases: the preliminary research phase, the prototyping phase, and the assessment phase. The research instruments used to obtain data on validity, feasibility, ease of use, and effectiveness were questionnaires with a Likert scale. The effectiveness of students' attitudes was assessed with attitude observation sheets, and the effectiveness of skills was evaluated with practicum report assessments. The research data were analyzed using percentage formulas and descriptively analyzed to obtain results that fit the categories of validation, feasibility, ease of use, and effectiveness. The results of this research are: (1) the practicum guide was deemed very valid (85.31%) based on expert validation results; (2) the practicum guide was deemed very feasible (88.33%) based on one-to-one assessment results and very feasible (86.67%) based on small group assessment results; (3) the practicum guide was considered very easy to use (93.13%) based on teacher evaluations and very easy to use (86.31%) based on student evaluations; (4) the practicum guide was very effective for attitude aspects (96.87%) and skill aspects (81.52%).
Pengembangan Penuntun Praktikum Materi Mobilitas Pada Manusia Kelas XI SMA/MA dengan Pendekatan Inkuiri Bebas Dimodifikasi Nurhadi, Nurhadi; Maizeli, Annika; Zural, Mimin Mardhiah; Mayeni, Mayeni
Bioscientist : Jurnal Ilmiah Biologi Vol. 12 No. 2 (2024): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v12i2.12188

Abstract

Kegiatan praktikum biologi materi mobilitas pada manusia kelas XI SMA/MA siswa menggunakan buku teks biologi yang disediakan di perpustakaan, dan lembar kerja yang ditulis oleh guru pada kertas double folio sebagai pedoman kegiatan. Ketersediaan buku biologi di perpustakaan tidak begitu mencukupi sehingga tidak semua siswa mampu memanfaatkan buku tersebut dengan baik. Penelitian ini bertujuan untuk mengembangkan pentunjuk praktikum materi mobilitas pada manusia kelas XI SMA/MA dengan pendekatan inkuiri bebas dimodifikasi yang valid, layak, dan efektif. Studi ini merupakan penelitain pengembangan dengan model Plomp yang terdiri dari tiga tahapan pengembangan yaitu, tahapan pendahuluan (preliminary research phase), tahapan prototip (prototyping phase), dan tahapan penilaian (assesment phase). Instrumen penelitian yang digunakan untuk memperoleh data kevalidan dan kelayakan adalah angket dengan Skala likert. Uji efektifitas sikap siswa dinilai dengan lembar penilaian observasi sikap, dan uji efektifitas keterampilan dengan penilaian laporan praktikum. Analisis data dilakukan secara deskriptif. Hasil penilaian menunjukkan bahwa penuntun praktikum sangat valid (92.25%), sangat layak (91.10%) pada one to one, sangat layak (91.5%) pada small group, sangat mudah (97.88%) oleh guru, dan sangat mudah (83.53%) oleh peserta didik. Hasil uji lapangan diperoleh bahwa penuntun praktikum pada aspek sikap sangat efektif (97.06%) dan aspek keterampilan sangat efektif (85.46%).
Validasi Instrumen Pemahaman Konsep Pada Materi Sel Untuk Siswa SMA Hajiriah, Titi Laily; Adnyana, Putu Budi; Rapi, Ni Ketut
Bioscientist : Jurnal Ilmiah Biologi Vol. 12 No. 2 (2024): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v12i2.12227

Abstract

This study aims to validate concept understanding instruments on cell material for high school students using Content Validity Ratio (CVR) and Content Validity Index (CVI). Instrument validation was conducted by five experts from three different universities. The results showed that most of the items had CVR and CVI values that met the established validity criteria, only a few items were declared invalid and needed to be revised or deleted. Furthermore, the results of the reliability test using Cronbach's Alpha obtained a value of 0.913 which indicates that this instrument has excellent reliability. This valid and reliable instrument can be used by biology teachers in high school to measure students' concept understanding of cell material. The use of this instrument is expected to help identify weak areas of student understanding and design more effective learning strategies. This research supports the importance of instrument validation to ensure the accuracy of measurement results and increase teacher and student confidence in the results obtained. Thus, the instrument that has been developed is expected to contribute significantly to improving the quality of biology learning in high school.
Kelayakan Multimedia Interaktif dengan Adobe Animate CC pada Materi Pencernaan Makanan Puspita, Farah; Ningsih, Kurnia; Wahyuni, Eko Sri
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 1 (2025): March
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v13i1.12241

Abstract

This study aims to determine the validity and reliability of interactive multimedia with Adobe Animate CC on food digestion material. The research method used is Research and Development (R&D), with a 3-D development model, which includes defining, designing, and developing. The research instrument used was a validation sheet with aspects of assessing the feasibility of material content, linguistic aspects, presentation aspects and aspects of interactive multimedia characteristics. Validation was carried out by 5 validators selected by purposive sampling by considering that the validator is an expert in the field of education and media, especially technology-based media. Media assessment is done qualitatively through a checklist assessment which is then converted into a quantitative value with Likert scale provisions. The validation data obtained from the validator's assessment was then analyzed using the Aiken validation analysis technique and its reliability was measured using the intra-class correlation coefficient. The validation results showed that the interactive multimedia was declared valid with an average validation score of 0.93 with 5 Likert scales. The reliability test results with the SPSS Statistic program obtained a value of 0.788 which shows excellent reliability. Thus, it can be concluded that this interactive multimedia is valid and suitable for use in learning.
Potensi Bakteri Endofit dari Tanaman Jahe Sebagai Agens Pengandali Hayati Kristianingrum, Sabrina Ayu; Setiawan, Andree Wijaya; Jayanti, Ruth Meike
Bioscientist : Jurnal Ilmiah Biologi Vol. 12 No. 2 (2024): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v12i2.12263

Abstract

The use of synthetic pesticides is not effective in reducing the prevalence of disease because it produces residues and does not support biodiversity. This is an unwise practice and can cause problems in the future.  The use of endophytic microorganisms is widely used to control plant diseases and pests, because it is known to have various pathogen inhibition mechanisms. Biological agents that are used to inhibit plant pathogens and have been widely developed, one of which is endophytic bacteria. The purpose of the research was to evaluate the potential of endophytic bacterial isolate from ginger plants as biological control agents. The type of research used is descriptive and exploratory. Sampling of healthy ginger plants was carried out at 5 points in two sub-districts, namely Getasan and Sumowono, Semarang Regency. Isolation is carried out by taking healthy ginger plants from the roots, rhizomes, fronds, and leaves. Characterization and selection of isolates were carried out by testing their phosphate dissolving ability, nitrogen anchoring, amylase and protease activities, and antagonist tests with Fusarium oxysporum in vitro. The results of this study are that (1) 20 pure isolates were successfully isolated consisting of 2 isolates derived from leaves, 4 isolates from fronds, 8 isolates from roots, and 6 isolates from rhizomes; (2) D91 isolate has the potential as a biological agent with an antagonist mechanism of 86.91% supported by protease enzyme activity, able to dissolve phosphate and anchor nitrogen.

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