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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 1,428 Documents
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Multimedia Interaktif Berbasis Edpuzzle: Upaya Meningkatkan Keterampilan Berpikir Kritis Siswa dalam Pembelajaran Biologi Sinaga, Sabilah Allyu; Adlini, Miza Nina
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 3 (2025): September
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.v13i3.17052

Abstract

This study aims to develop interactive multimedia based on the Edpuzzle application that is valid, practical, and effective to improve students' critical thinking skills. The method used is research and development (R&D) with the ADDIE model (Analysis, Design, Development, Implementation, Evaluation). The subjects of the study were 36 students of grade XI Madrasah Aliyah Laboratorium UINSU. Data were collected through validation questionnaires from media and material experts, questionnaires on the practicality of teachers and students, and a critical thinking skills test using the Facione indicator. The results of the validity test showed that interactive multimedia was in the very valid category with a score of 96.25% from material experts and 97.5% from media experts. Based on the practicality test, it obtained a score of 100% from teachers and 91% from students, including the very practical category. The results of the effectiveness test showed an increase in students' critical thinking skills with a very effective category with a score of 75%. These findings prove that Edpuzzle-based interactive multimedia can be an alternative learning media that is relevant to the demands of the 21st century and is able to facilitate student engagement and strengthen critical thinking skills in a structured manner.
Pengaruh Model Pembelajaran Project Based Learning Terhadap Kemampuan Berpikir Kritis dan Kreativitas Pada Mata Pelajaran Biologi di SMAN 4 Palu Aisyah; Jamhari, Mohammad; Buntu, Amalia; Rafiqa; Laenggeng , Abd. Hakim; Zainal, Syech
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 3 (2025): September
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.v13i3.17132

Abstract

This study aims to determine the effect of the Project Based Learning learning model on critical thinking skills and creativity in biology subjects at SMA Negeri 4 Palu. This type of research is quantitative with a quasi-experimental type. The population in this study was 400 people and the sample in this study was 70 people. Sampling was done by purposive sampling, and the research sample was 2 classes consisting of class XC and XJ. The data collection technique in this study was using a test in the form of a Post-test and observation sheet. Data analysis used prerequisite tests, namely, normality tests and homogeneity tests and hypothesis testing using independent sample-t tests. The results of the study indicate that (1) students' critical thinking skills had a significant average score in class XJ as the experimental class, namely 85.66, and class XD as the control class, namely 77.14. (2) The results of observing students' creativity in the experimental class yielded a score of 84.66, with 80-100% falling into the “very creative” category, while the control class scored 76.14, with 61-80% falling into the “creative” category. (3) The Project-Based Learning (PBL) model has a significant impact on critical thinking skills and creativity in biology lessons at SMA Negeri 4 Palu. This is evidenced by the t-test results, which show a significance value of 0.00 < 0.05.
Skrining Actinomycetes Penghasil L-asparginase dari Pantai Olo, Sumatera Utara dan Uji Aktivitas Enzim Hartini, Martha Yeni Sry; Yurnaliza; Hastuti, Liana Dwi Sri
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 3 (2025): September
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.v13i3.17133

Abstract

This research aims to isolate actinomycetes that produce the enzyme L-asparaginase from Olo Beach and to determine the activity of the L-asparaginase enzyme produced. Actinomycetes producing the enzyme L-asparaginase were obtained through the following steps: isolation on SCA medium using the spread plate method; selection of L-asparaginase-producing actinomycetes on M-9 liquid medium with phenol red as a color indicator; production of L-asparaginase based on the principle of fermentation in production medium, followed by measurement of L-asparaginase activity and protein content. Protein content was determined using the Lowry method with Bovine Serum Albumin (BSA) as the standard. The data obtained were analyzed using ammonia and BSA standard curves. The results showed that 11 actinomycetes isolates from Olo Beach were capable of producing L-asparaginase. Qualitative selection showed a change in media color from yellow to pink, indicating the presence of L-asparaginase activity. Quantitatively, the highest L-asparaginase enzyme activity was 40.688 U/mL and the highest specific activity was 123,677 U/mg, found in isolate SPO 6. The lowest enzyme activity was 31,651 U/mL and the lowest specific activity was 25,874 U/mg. Specific activity is influenced by enzyme activity and protein content.
Analisis Keterlaksanaan Pratikum yang Disesuaikan dengan Gaya Belajar Kinestetik Ritonga, Yemima; Sari, Novi Fitriandika; Chastanti, Ika
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 3 (2025): September
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.v13i3.17013

Abstract

This study aims to analyze the implementation of biology practicum adapted to the kinesthetic learning style of students at Kemala Bhayangkari Private High School and evaluate its effectiveness in improving understanding of biological material. The method used was descriptive quantitative with a qualitative approach through interviews, observations, and distributing questionnaires to students of class XI IPA who were selected by purposive sampling. The questionnaire instrument consisted of 25 statements to measure five indicators of practicum implementation, namely problem solving, physical involvement, discussion and reflection, practical activities, and use of tools and materials. The results showed that the level of practicum implementation was in the high category for indicators of problem solving (90.32%), physical involvement (88.41%), discussion and reflection (87.53%), and practical activities (86.45%). Meanwhile, the indicator of the use of tools and materials was in the medium category (77.09%). These findings suggest that practicum tailored to kinesthetic learning styles can support students' active engagement and contribute positively to material understanding. Thus, kinesthetic learning style has a positive relationship with the effectiveness of biology practicum and student learning achievement, so it is important for teachers to design learning that is aligned with the characteristics of this learning style.
Pengaruh Kecerdasan Emosional (EQ) dan Motivasi Belajar Terhadap Hasil Belajar Biologi Siswa Kelas XI-MIPA SMA Negeri 2 Palu D, Mutiara; Lilies; Rafiqa; Ramadhan, Achmad; Windarsih, Yulia; Dhafir, Fatmah
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 3 (2025): September
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.v13i3.17238

Abstract

This study aims to describe the influence of emotional quotient and learning motivation on the biology learning outcomes of eleventh-grade students in the MIPA program at SMA Negeri 2 Palu. The research employs an ex post facto design that is correlational in nature, utilizing a quantitative approach. The population of the study consists of 288 students, with a sample size of 72 students selected through Cluster Random Sampling techniques. The research instruments include a student learning outcomes test, and questionnaires measuring emotional quotient  and learning motivation. The results of the questionnaire tests were found to be valid and reliable. Data analysis of the questionnaire results was conducted using multiple linear regression with the assistance of SPSS version 27. The findings indicate that both variables (emotional quotient  and learning motivation) have a positive and significant effect on the biology learning outcomes of the eleventh-grade students at SMA Negeri 2 Palu, both partially and simultaneously. This is evidenced by the t-test results for emotional quotient , which yielded a value of 17.514 > t-table 1.997, and for learning motivation, which yielded a value of 5.721 > t-table 1.997. Additionally, the F-test (simultaneous) produced an F-calculated value of 543.62 > F-table 3.15. Therefore, it can be concluded that there is a significant influence of emotional quetion and learning motivation on the learning outcomes of the eleventh-grade students at SMA Negeri 2 Palu.
Pengaruh Model Problem Based Learning Dipadukan Dengan Tipe Teams Game Tournament Untuk Meningkatkan Berpikir Kritis Siswa Kelas XI di MAL UINSU Kirana, Hafsah Nanda; Rohani
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 3 (2025): September
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.v13i3.17330

Abstract

This study aims to examine the effect of integrating the Problem Based Learning (PBL) model with the Teams Game Tournament (TGT) type on improving students’ critical thinking skills. The research employed a quantitative approach with a quasi-experimental method using a Pretest-Posttest Control Group Design. The population consisted of 61 students, divided into class XI IPA-1 (30 students) and class XI IPA-3 (31 students), selected through cluster random sampling. Data analysis showed that the Shapiro-Wilk normality test resulted in significance values of 0.085 (pretest) and 0.405 (posttest), both greater than 0.05, indicating that the data were normally distributed. The homogeneity test using Levene’s statistic yielded a significance value of 0.718 > 0.05, confirming equal variances. Hypothesis testing produced a significance value of 0.000 < 0.05, leading to the rejection of H0 and acceptance of Ha. Therefore, it can be concluded that the application of the Problem Based Learning model combined with the Teams Game Tournament type has a significant positive effect on enhancing the critical thinking skills of class XI students at MAL UINSU in the digestive system topic.
Uji Efektivitas Antibakteri Larutan Lo’i Keta Dan Ekstrak Metanol Lo’i Keta Terhadap Pertumbuhan Bakteri Staphylococcus aureus dan Streptococcus pyogenes Adelia, Fadiah; Musyarrafah; Rozikin; Lestari, Novianti Anggie
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 3 (2025): September
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.v13i3.14495

Abstract

This study aims to stimulate the effectiveness of antibacterial solutions and methanol extracts of lo'i keta, a traditional medicine from Bima-Dompu, West Nusa Tenggara, against the growth of both bacteria. Lo'i keta solutions and methanol extracts were tested at concentrations of 25%, 50%, 75%, and 100% using the agar well diffusion method. The inhibition zones formed were measured to assess antibacterial activity. Ciprofloxacin was used as a positive control, and distilled water as a negative control. The results showed that lo'i keta solutions and methanol extracts had inhibitory power against Staphylococcus aureus and Streptococcus pyogenes. Its effectiveness increased with increasing concentrations of the solution and extract. The best activity was shown at a concentration of 100%, approaching the positive control. This study shows that lo'i keta has the potential as a natural alternative to fight gram-positive bacteria, because resistance to antibiotics is increasing and lo'i keta can be used as a traditional herbal medicine, but there has not been much scientific exploration.
Uji Efektivitas Antibakteri Larutan Lo’i Keta dan Ekstrak Methanol Lo’i Keta Terhadap Pertumbuhan Staphyloccus Epidermidis dan Pseudomonas Aeruginosa Safari, Dilfa Atri; Musyarrafah; Rozikin; Rini, Setio
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 3 (2025): September
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.v13i3.14496

Abstract

This study aimed to determine the antibacterial activity of Lo’i keta solution and methanol extract against the growth of Staphylococcus epidermidis and Pseudomonas aeruginosa. The research employed a true experimental design using a Posttest Only Control Group Design with the well diffusion method. A total of 80 samples were divided into 20 treatment groups with concentrations of 25%, 50%, 75%, and 100%, along with a positive control (ciprofloxacin) and a negative control (distilled water). GC-MS analysis revealed nine bioactive compounds in the methanol extract of Lo’i keta. The results showed that the Lo’i keta solution inhibited the growth of Staphylococcus epidermidis with inhibition zones ranging from 15–24 mm, while the methanol extract produced larger inhibition zones of 18–32 mm. Against Pseudomonas aeruginosa, only the methanol extract demonstrated antibacterial activity with inhibition zones of 13–17 mm, whereas the solution showed no inhibitory effect. The Kruskal-Wallis test indicated significant differences among the treatment groups. In conclusion, both the Lo’i keta solution and the methanol extract were effective in inhibiting the growth of Staphylococcus epidermidis, while antibacterial activity against Pseudomonas aeruginosa was observed only in the methanol extract. Lo’i keta demonstrates potential to be developed as a traditional medicine-based antibacterial alternative.
Hasil Belajar Siswa Melalui Model Pembelajaran PBL Berbasis CRT (Culturally Responsive Teaching) Pada Materi Ekologi Dan Keanekaragaman Hayati Kelas VII di SMP Negeri 4 Karanganom Zaharani, Intan; Agustina, Lina
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 3 (2025): September
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.v13i3.14957

Abstract

This study aims to determine the learning outcomes through the application of learning models to students towards PBL based on CRT (Culturally Responsive Teaching) in class VII SMP Negeri 4 Karanganom. The approach in this study is quantitative. This type of research is True Experimental Design which uses posttest only control design. The sample used in this study was class VII F and VII G. The research data instruments were in the form of tests and observations. With the Validity Test and Reliability Test instruments with data analysis techniques of Normality Test and Homogeneity Test, t-test and learning outcomes. The results of this study indicate that the t-test results show a significant difference between the experimental class and the control class, with a significance value of 0.000 which is smaller than 0.05. This means that the null hypothesis (H0) is rejected, so it can be concluded that there is a real difference between the two classes. The conclusion of this study is that the PBL learning model based on CRT (Culturally Responsive Teaching) has an effect on student learning outcomes in the material of ecology and biodiversity in class VII.
Aktivitas Pupisida Ekstrak Etanol Daun Belimbing Wuluh (Averrhoa bilimbi L.) terhadap Kematian Pupa Aedes aegypti L. Islami, Suryadi; Hardiansyah, Ridwan; Afriyani; Hafizh, Ahmad Fauzan; Temun, Jedo Muchamad Tias
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 3 (2025): September
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.v13i3.15389

Abstract

This study aimed to determine the pupicidal activity of ethanol extract from bilimbi ( Averrhoa bilimbi L.) leaves against Ae. aegypti pupal mortality. A true experimental design was employed to evaluate the toxicity of various ethanol extract concentrations against pupae over treatment periods of 24 and 48 hours. Mortality rates were recorded and calculated using the WHO mortality formula, and lethal concentrations (LC50 and LC90) were determined via probit analysis to identify concentrations causing 50% and 90% pupal mortality. The results showed that the ethanol extract exhibited dose-dependent pupicidal activity, with the highest mortality observed at 4% concentration, achieving 97.33% mortality after 48 hours. The LC50 values were 2.378% at 24 hours and 1.425% at 48 hours, indicating an increased effectiveness over time. The findings suggest that the ethanol extract of bilimbi leaves has potential as a natural pupicide, offering an eco-friendly alternative for controlling Ae. aegypti populations. Further studies are needed to optimize formulation and field application for sustainable mosquito vector management.

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