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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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Karakterisasi dan Skrining Fitokimia dari Daun Violces (Viola odorata) Surahmaida, Surahmaida; Mangkoedihardjo, Sarwoko
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.v12i2.11449

Abstract

Violces (Viola odorata) have been proven to have many pharmacological benefits as traditional medicine. Its leaves are traditionally used to treat headaches, coughs, colds, bronchitis, and asthma. This study aims to obtain scientific data on the pharmacognostic profile of fresh leaf and fine powder simplisia of violces, as well as to identify the secondary metabolite compounds of the methanol extract of violces leaves. The research method used is a pharmacognostic study (macroscopic, microscopic, and powder microscopy) and phytochemical screening using GCMS and analyzed descriptively qualitatively. Pharmacognostic observations on fresh leaf simplisia showed the presence of fibers, multicellular trichomes, spiral and ladder-type vascular bundles, stomata, covering hairs, and cork tissue. Fragments in the fine powder of violces leaves identified included fibers, multicellular trichomes, spiral and ladder-type vascular bundles, stomata, covering hairs, and stone cells. The results of GCMS analysis of the methanol extract of Violces leaves showed the presence of 27 identified chemical compounds It can be concluded that the pharmacognostic fragments and chemical compounds in this study will help in the identification and standardization of leaves from the Viola odorata species.
Formulasi Masker Peel Off Gel dari Kombinasi Minyak Atsiri Sereh dan Cengkeh untuk Menghambat Bakteri Penyebab Jerawat Manus, Noriko; Taurhesia, Shelly; Setyahadi, Siswa; Manus, Widya Christine
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.v12i2.11497

Abstract

Acne is a chronic skin disease involving inflammation of the pilosebaceous units with the main bacteria Staphylococcus epidermidis and Propionibacterium acnes has prompted the creation of cosmetic masks containing antibacterial agents. This study aims to evaluate the antibacterial activity of Lemongrass and Clove essential oils and to determine the synergistic effects of combining these essential oils in a peel-off gel mask formulation. The study was conducted using the liquid dilution method to determine the minimum inhibitory concentration and the disk diffusion method to test the inhibition zone diameter. Additionally, tests are conducted to determine the antibacterial activity against Propionibacterium acnes and Staphylococcus epidermidis, as well as to analyse the stability of the product both chemically and physically during storage. The results of the study showed that (1) the formulation containing a combination of 25% lemongrass and 18% cloves showed high inhibitory power and good stability, but caused moderate irritation; (2) lemongrass and clove essential oils were effective against Propionibacterium acnes and Staphylococcus epidermidis, but it was recommended to reduce the active ingredients to prevent potential irritation.
Pengaruh Media Komik Visual terhadap Motivasi Belajar Siswa Ditinjau dari Gender Berbeda Jannah, Husnul; Primawati, Sri Nopita; Sukri, Akhmad; Wahyuni, Bq. Sri; Masiah, Masiah
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.v12i1.11510

Abstract

This research examines the influence of visual comic media on student learning motivation based on different genders. The study applies visual comic media to investigate whether there are differences in learning motivation between male and female students. The activities were conducted at SD Negeri 1 Malaka, North Lombok Regency, involving a total of 45 students. The research utilized a pre-experimental design with a pre-test and post-test design within a single treatment group. The instrument used was a motivation questionnaire based on the ARCS model, covering aspects of attention, relevance, satisfaction, diligence, self-reliance, and self-confidence. The analysis results indicate significant differences in the attention and diligence aspects. Furthermore, female students showed higher motivation compared to male students. These findings indicate that demographic factors such as gender influence responses to learning media such as visual comics. This suggests a need to consider gender factors in the design of visual learning media to achieve maximum effectiveness in learning, particularly in enhancing student learning motivation.
Efektivitas Pupuk Organik Cair Jerami Padi dan Kotoran Sapi terhadap Pertumbuhan Tanaman Sawi (Brasicca juncea L.) Nastiti, Anisa Rizki; Asngad, Aminah
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.v12i1.11517

Abstract

The mustard plant (Brassica juncea L.) is loved by everyone because it has lots of nutrients and is also good for health. This research aims to determine the effectiveness of liquid organic fertilizer from rice straw and cow dung on the growth of mustard greens. The method used in this research was an experimental method with a Completely Randomized Design (CRD) with 2 factors, namely the dose of liquid organic fertilizer (P₁ = 10 ml and P₂ = 13 ml) and the time of application of liquid organic fertilizer (W₁ = once every 5 days and W₂ = once every 7 days).  The results of research on liquid organic fertilizer from rice straw and cow dung can effectively accelerate growth in height, number of leaves and wet weight in mustard greens (Brassica juncea L.). The growth of mustard greens was very good in the P₂W₁ treatment (13 ml dose every 5 days) which produced mustard plants with an average height of 35.1 cm, an average number of leaves of 17.3, and an average fresh weight of mustard greens. average 165.3 grams.
Keanekaragaman Makrozoobenthos di Sungai Way Umpu Kabupaten Way Kanan Provinsi Lampung Arsitalia, Metari; Tugiyono, Tugiyono; Master, Jani; Susanto, G. Nugroho
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.v12i2.11524

Abstract

Way Umpu River, located in Way Kanan Regency, Lampung Province, is widely used by the local community and the waste products are ultimately disposed of into the river. This can cause a decrease in river water quality which can cause changes in the balance of the ecosystem, both biotic and abiotic. One of the organisms that can be used as a bioindicator is macrozoobenthos. This research aims to determine the diversity of macrozoobenthos as a bioindicator of water pollution quality. The method used was a survey method and sampling using Ekmen Grab at 6 sampling stations. Samples were taken 3 times in the left, middle and right bank areas of the river. Apart from that, water analysis was carried out in the form of physical parameters (temperature and TSS) and chemical parameters (pH, DO, COD, BOD). The data was then analyzed using the Diversity Index. The research results found 14 types of macrozoobenthos consisting of 5 phylum, namely Arthopoda, Mollusca, Porifera, Ciliophora, and Annelida. From the results of the analysis of the macrozoobenthos diversity index at station IV, it has a value of 0.56 ind/m2, which states that the location is heavily polluted. Physical and chemical factors show a significant correlation with macrozoobenthos diversity.
Produksi Kotoran Cacing Tanah dan Hubungannya dengan Kelimpahan Cacing Tanah pada Ekosistem Alami dan Ekosistem Buatan Jody, Regina; Darmi, Darmi; Rizwar, Rizwar
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.v12i1.11550

Abstract

The presence of earthworms in an ecosystem can improve soil quality through physical, chemical and biological properties. The activity of earthworms in producing feces also has an important role in increasing soil fertility. This research aims to analyze the production of earthworm feces and its relationship with the abundance of earthworms in natural and artificial ecosystems. Determining location points uses the Cluster Sampling method, namely natural and artificial ecosystems. Sampling of earthworms and their feces used the line transect method with a length of 100 meters and plots were created along the transect lines to observe the population and production of earthworm feces with 20 replicate plots at each location. Data analysis includes average feces weight, number of earthworm feces, and correlation analysis. Morphological data on earthworm droppings were analyzed descriptively. The results of this research show that in natural ecosystems there are 2 forms of earthworm feces, namely granular and globular types, whereas in artificial ecosystems there is only 1 form of earthworm feces, namely globular. Earthworm feces production is higher in natural ecosystems than in artificial ecosystems. The relationship between dung production (number of deposits and weight of dung deposits) of earthworms with the number and biomass of earthworms shows a significant relationship with a moderate correlation category (<1), while the relationship between earthworm density and worm biomass correlates significantly with a strong correlation category (1).
Environmental Change Analysis on Agricultural Land Conversion in Palembang City, South Sumatera, Indonesia Yuliantina, Nila; Mulyana, Andy; Wildayana, Elisa; Lionardo, Andries
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.v12i1.11574

Abstract

The existence of agricultural land is indirectly related to the environment. The existence of agricultural land in terms of environmental aspects can provide five types of benefits, namely preventing flooding, controlling water balance, preventing erosion, and reducing environmental pollution from household waste. This research aims to analyze environmental changes in the conversion of agricultural land to non-agricultural activities in Palembang City. This research uses quantitative methods, analytical quantitative research is conducted to accept or reject hypotheses that are described by significance values. The research also used qualitative methods by conducting measured interviews with 250 respondents. The research was conducted in May 2023 in three sub-districts in Palembang City, namely Kalidoni, Kertapati, and Gandus sub-districts. The environmental indicators used as a reference include water quality, air quality, soil conditions, traffic conditions, runoff water conditions, plant conditions, and animal conditions. The results showed that the condition of plant environmental quality in the Gandus and Kalidoni sub-districts is classified as poor, while the Kertapati sub-district is in the good category. While the condition of the environmental quality of animal indicators in the Kertapati and Kalidoni sub-districts is in the good enough category, but in the Gandus sub-district it is in the bad category. Dragonfly populations will be high if the habitat conditions are very suitable. This means that there are still streams or puddles that are still clean and food is available. This clean water is the place for dragonfly eggs and images for further development. So if the dragonfly population at a location is still high, it means that the water conditions at that location are still not polluted.
Insidensi Ortohantavirus pada Inang Reservoir di Kota Semarang, Jawa Tengah Septiyani, Rani Dwi; Dhanti, Kurnia Ritma; Kurniawan, Kurniawan; Mulyono, Arief; Handayani, Farida Dwi
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.v12i1.11591

Abstract

Orthohantavirus is an RNA virus that causes Hemorrhagic Fever with Renal Syndrome (HFRS) and Hantavirus Pulmonary Syndrome (HPS). Humans can become infected with orthohantaviruses by inhaling virus particles from the urine, saliva, and feces of infective reservoir hosts. Small mammals from the orders Rodensia, Eulipotyphla, and Chiroptera are the main reservoirs of orthohantaviruses. This study aims to detect and calculate the incidence of orthohantavirus in reservoir hosts in Semarang City. The research was conducted descriptively analytically with a cross-sectional study design. The research population was all mice and shrews in the research location (Gayamsari and Tlogosari subdistricts), and the samples were caught mice and shrews (84). The research was carried out in May-September 2023. Orthohantavirus detection was carried out using the Nested PCR test (pre denaturation, denaturation, annealing and extension). A total of 84 individuals were captured, consisting of Rattus novergicus, Rattus tanezumi and Suncus murinus. Orthohantavirus in this study was successfully detected in Rattus norvegicus. The results of the study showed that the incidence of orthohantavirus in Gayamsari Village was (11.1%), Tlogosari Village (2.78%), and the overall total was (2.38%). It is necessary to control mice to prevent transmission of orthohantavirus.
Analisis Kesiapan Guru Biologi dalam Mengimplementasikan Kurikulum Merdeka Belajar Siahaan, Shalsabila; Khairuna, Khairuna
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.v12i1.11610

Abstract

The objective of this study is to explore the implementation of the Independent Learning Curriculum (Kurikulum Merdeka Belajar) and the challenges faced by teachers during its implementation. This research adopts a qualitative approach with a descriptive research design. The subjects of the study are the School Principal and Biology teachers at SMA Negeri 2 Percut Sei Tuan. Data collection involved observation, interviews, and documentation. Data analysis techniques included data reduction, data presentation, and drawing conclusions. Data validity was ensured through Technique Triangulation. The findings indicate that SMA Negeri 2 Percut Sei Tuan has implemented various aspects related to the Independent Learning Curriculum, one of which is the application of the Pancasila Student Profile through Project-Based Learning. Based on interviews, teachers encounter challenges in determining assessments that align with the intended learning objectives, especially in project-based learning scenarios. This confusion stems from the variety of assessment types such as presentations, projects, products, oral assessments, written assessments, and others. To address these issues, both the School Principal and teachers attend monthly training sessions as part of the Teacher Working Group (Kelompok Kerja Guru, KKG) to tackle problems and enhance teacher competence in teaching and learning activities.
Pengaruh Model Pembelajaran Kooperatif Tipe Make A Match Berbantuan Aplikasi 3D terhadap Pemahaman Konsep pada Materi Sistem Pencernaan Khairanti, Dita; Khairuna, Khairuna
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.v12i1.11722

Abstract

This research utilized a cooperative learning model of make a match type assisted by a 3D application to investigate the influence of students' conceptual understanding on the topic of the digestive system in Grade XI of a Private High School in Medan City. The objectives of this study were to determine the impact of using the cooperative learning model of make a match type assisted by a 3D application and to assess students' conceptual understanding of the digestive system material. The research design employed was a non-equivalent control group quasi-experimental approach with a quantitative method. The study was conducted with an experimental group and a control group. The instruments administered to both groups consisted of pretest (before treatment) and posttest (after treatment) essay questions adjusted according to conceptual understanding indicators. Data analysis included descriptive statistical approach, inferential analysis, and independent t-test hypothesis testing to evaluate the influence and differences in students' conceptual understanding between the experimental group (treatment) and the control group using conventional learning models. The results of this study indicated that the posttest scores in the experimental group increased by 73.95 points, compared to only 12.19 points in the control group. The findings suggest a significant impact of the treatment (experimental group) on students' conceptual understanding of the digestive system material in one of the Private High Schools in Medan City.

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