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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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Survey Etnobotani Tumbuhan Obat pada Masyarakat Dayak Salako di Sekitar Cagar Alam Raya Pasi Provinsi Kalimantan Barat Irwan Lovadi; Yoga Budihandoko; Niken Wuri Handayani; Dian Setyaningsih; Icuk Setiawan
Bioscientist : Jurnal Ilmiah Biologi Vol 9, No 1 (2021): 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/bjib.v9i1.3584

Abstract

The use of plants in traditional medicine has been carried out by indigenous people around the forest on the island of Kalimantan. However, knowledge about the use of plants in traditional medicine by the Salako Dayak community who inhabit the buffer zone of the Raya Pasi Nature Reserve, West Kalimantan Province, has never been documented. This study aims to collect scientific information regarding the use of plants in traditional medicine by the Salako Dayak community in West Kalimantan Province. The research was conducted by conducting semi-structured interviews, and continued with a discussion of 18 respondents who were determined by purposive sampling. The data collected includes: the name of the plant, the part used, the disease/efficacy (medical) of each plant, the method of preparation of medicinal plants, and the dosage/dose rules. In addition, the frequency of citations/mentions (%) of each medicinal plant and the Informant Agreement Factor were also calculated. The results showed that the Salako Dayak community used 85 species of plants in traditional medicine. Piperaceae, Fabaceae, Rubiaceae, and Lamiaceae were the dominant plant families reported by respondents as medicinal plants. In general, the Salako Dayak community mostly uses the roots to be used as medicine, with the method of preparation by boiling or soaking. Callicarpa longifolia is the plant with the highest frequency of citations, and is commonly used to treat: internal fever, ulcers, wounds, abdominal pain, and postpartum medicine at a dose of 3 x 1. In addition, this study also obtained the number of taxa used by the Dayak community. Salako is more diverse in several categories of traditional medicine.
Profil Keterampilan Penyelesaian Masalah Siswa melalui Penerapan Model Pembelajaran Problem Based Learning Ditinjau dari Perbedaan Gender Yunita Roslina Ngongo; Ismail Efendi
Bioscientist : Jurnal Ilmiah Biologi Vol 9, No 1 (2021): 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/bjib.v9i1.3836

Abstract

The purpose of this research is to describe the profile of students' problem solving skills through the application of problem based learning models in terms of gender differences. This type of research is descriptive qualitative research. The research population was seventh grade students of SMPN 3 Lingsar, West Lombok Regency. The research was conducted in March-May 2020. The research instrument used was a problem-solving skill test. The data collection technique used a test in the form of description questions. The data analysis technique used descriptive statistics. The results showed that the average mastery result of female students increased by 55.7, and the average mastery indicator of male students increased by 48.1. This shows that the problem solving skills of female students are greater than that of male students. The average score for male students is 0.99, in the high category, and the average score for female students is 0.93, in the high category. This shows that there are differences in problem solving skills between male and female students. The conclusion in this study is that the problem solving skills of female students are higher than that of male students.
Serapan Karbon Hutan Mangrove di Bagek Kembar Kecamatan Sekotong Kabupaten Lombok Barat Baiq Farista; Arben Virgota
Bioscientist : Jurnal Ilmiah Biologi Vol 9, No 1 (2021): 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/bjib.v9i1.3777

Abstract

The environmental services of mangrove forests as carbon sinks are one of the indirect benefits of the mangrove ecosystem. The absorption of carbon is carried out by mangrove vegetation through the process of photosynthesis. In this study, mangrove environmental services as carbon sinks are based on the ability to absorb CO2 expressed in carbon units (tC, tCO2), and the economic value of carbon storage in monetary units (Rp). This research was conducted in the Bagek Kembar Mangrove Ecotourism Area, Sekotong District, West Lombok Regency. The method used to take samples is stratified random sampling, where the placement of the plots is determined randomly. The observation plots for each type of growth are arranged in stages with different sizes. The plots are 10 m x 10 m for trees, 5 x 5 m for seedlings, and 2 x 2 m for seedlings. Trees are mangroves with trunk diameter > 4 cm, tillers have a stem diameter of 4 cm and, a height of > 1 m, and seedlings are mangroves with a height of < 1 m. This research shows that the mangrove vegetation in the research location has absorbed 6,437.80 tonnes of CO2eq, and a monetary value of Rp. 482.834.700 (four hundred eighty-two million eight hundred and thirty-four thousand and seven hundred rupiahs).
Aktivitas Antibakteri Ekstrak Etanol Daun Kitolod (Isotoma longiflora) terhadap Bakteri Vibrio sp. Penyebab Vibriosis pada Udang Vaname (Litopenaeus vannamei) Sari Hidayati; Salnida Yuniarti Lumbessy; Fariq Azhar
Bioscientist : Jurnal Ilmiah Biologi Vol 9, No 1 (2021): 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/bjib.v9i1.3557

Abstract

The purpose of this study was to determine the effectiveness of the ethanol extract of kitolod leaves is active against Vibrio sp. that causing vibriosis in vaname shrimp by in vitro method. Kitolod leaf extract was made using maceration method with 96% ethanol as solvent. Kitolod leaf ethanol extract was analyzed by GC-MS. Antibacterial testing using the disk diffusion method used 4 concentration variations, namely: 12.5%, 25%, 50%, and 100% against 3 types of Vibrio sp. bacteria, namely: Vibrio harveyi, Vibrio parahaemolyticus, and Vibrio alginolyticus. The antibiotic rifampicin was used as a positive control, and aquades as a negative control. This study used a factorial Completely Randomized Design (CRD) with 3 replications. The results of characterization and identification by GC-MS showed the presence of an active compound of phthalic acid in the ethanol extract of kitolod leaves. Kitolod leaf extract 25%, 50%, and 100% had the same ability to inhibit the growth of Vibrio alginolyticus. Kitolod leaf extract 50% and 100% had the same ability to inhibit Vibrio harveyi and kitolod leaf extract 100% had a better ability to inhibit the growth of Vibrio parahaemolyticus.
Respon Pertumbuhan Hipokotil Kurma (Phoenix dactylifera L.) cv. Barari Madu pada Beberapa Konsentrasi Zat Pengatur Tumbuh secara In Vitro Novita Hidayatun Nufus; Aluh Nikmatullah; Muhammad Sarjan
Bioscientist : Jurnal Ilmiah Biologi Vol 9, No 1 (2021): 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/bjib.v9i1.3828

Abstract

This study aims to determine the growth response of the hypocotyl date palm (Phoenix dactylifera L.) cv. Barari on several types and concentrations of Growth Regulators (PGR) in vitro. The research was carried out by planting 30-day-old hypocotyl dates on Murashige Skoog (MS) media by giving several concentrations of ZPT Naphthalene Acetic Acid (NAA) and Benzyl Amino Purine (BAP). The treatment given is; P0 (Media MS0, without the addition of PGR), P1 (Media MS+1 ppm NAA+1 ppm BAP), P2 (Media MS+2 ppm NAA+1 ppm BAP), and P3 (Media MS+3 ppm NAA+1 ppm BAP). Each treatment consisted of 20 explants with 3 replications. The parameters observed were: 1) the first time shoots/roots appeared; 2) percentage of explants forming roots; 3) percentage of explants forming shoots; and 4) the color of the explants in each treatment after 30 days. Observational data were analyzed descriptively. The results showed that the hypocotyl response of the Barari cultivar planted in treatments P1, P2, and P3 showed cell enlargement and elongation, in contrast to explants in treatment P0 which did not show any growth response. In treatments P1 and P2, cell elongation occurred until the 10th day followed by root formation on the 15th day after planting. The percentage of explants that formed roots at P1 and P2 were 21.67% and 16.67%, respectively. In the P3 treatment, the explants only experienced cell enlargement and elongation without the formation of shoots or roots. The color of the explants on P0 treatment was slightly brown green with black tips after 30 DAP. Explants planted at P1, P2, and P3 formed shoots or shoots+roots, the hypocotyl area remained green, shoots were greenish-white, and roots were white.
Pengaruh Pemberian Zat Pengatur Tumbuh (Growtone) terhadap Pertumbuhan Sowang (Xanthostemon novaeguineense Valet.) Leonardo Elisa Aisoi
Bioscientist : Jurnal Ilmiah Biologi Vol 9, No 1 (2021): 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/bjib.v9i1.3740

Abstract

Sowang (Xanthostemon novaeguineense Valet.) is an endemic plant of Papua whose population is currently experiencing very high pressure due to overexploitation, and the morphological characteristics of Sowang are very difficult to develop generatively, it is necessary to make efforts to reproduce vegetatively. Vegetative propagation is an alternative that needs to be done, one of which is by cuttings. Research on the effect of giving growtone on Sowang's growth has been carried out from March to July 2020, at the Green House Laboratory of the Department of Biology, FMIPA, Cenderawasih University, Jayapura, Papua. This study aims to determine the effect of giving growtone with different doses, types of cuttings, and the interaction of these two factors on the growth of Sowang cuttings. This study used an experimental method with a factorial Completely Randomized Design (CRD) with two factors and three replications. Factor 1, growtone (D0: control, D1: 50 ppm, D2: 100 ppm, and D3: 150 ppm), and factor 2, the type of cuttings Sowang (S1: shoot cuttings and S2: stem cuttings). The results showed that different doses of growtone and the type of cuttings had a significant effect on the growth of Sowang cuttings. The dose of growtone 150 ppm and the type of stem cuttings gave the best results in increasing the growth of Sowang shoot cuttings.
Analisis Butir Soal Ujian Akhir Semester Ganjil Biologi Kelas XI MAN 2 Kota Jambi Ahmad Subari; Lufri Lufri; Syamsurizal Syamsurizal
Bioscientist : Jurnal Ilmiah Biologi Vol 9, No 1 (2021): 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/bjib.v9i1.3612

Abstract

This study aims to determine the quality of the final exam questions for the odd semester biology class XI MAN 2 Jambi City. The research subjects were 167 students of class XI MAN 2 Jambi City in the 2020/2021 academic year. This research is a descriptive study with data collection techniques through test instruments in the form of multiple choice questions, answer sheets, and answer keys. The data analysis technique used the Anates version 4.0.9 program to determine the reliability, level of difficulty, discriminatory power, distractor quality, and recap of item analysis. The results in this study indicate that the reliability value of the test items is 0.06 with very low criteria. For the item difficulty level, there are 4 questions of "very easy" difficulty, 2 questions "easy", 7 questions "medium", 4 difficult "difficult" questions, and 8 questions "very difficult". On the discriminatory power of items, there are 7 items classified into the "very bad" category, 8 items classified as "bad", 6 items classified as "enough", and 4 items classified as "good". While the results of the analysis of the quality of the item distractors, which have a distractor level of less than 51% which are generally found in each item. In addition, there are very few distractors in the percentage categories (51-75 or 126-150) and 76-125. Therefore, it can be concluded that, overall there are no questions that can be directly used, but some questions must be improved, and the rest cannot be used. There are 11 questions that need to be improved, and the remaining 14 questions that cannot be used.
Keragaman Ekspresi Lokus Gen Kucing Peranakan Anggora Hasil Perkawinan Silang Alami Nofisulastri Nofisulastri; Supriadi Supriadi
Bioscientist : Jurnal Ilmiah Biologi Vol 9, No 1 (2021): 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/bjib.v9i1.3734

Abstract

This research is a follow-up study by presenting the extent of the expression pattern and the presence of each allele locus that marks the color pattern on the cat's body, to add a reference in making it easier for the cat breeder community to form relatively uniform color patterns in certain crossing periods. This research is a descriptive exploratory case study presented qualitatively. Cat samples were screened based on a minimum age of 1 year, and 30 individuals were collected by road sampling. Observation of sample morphology based on mating pathway, recording of morphological characters (body color, color pattern, and tail length). Data were analyzed using allele frequency calculations for genes (dominant and recessive relationship) and concluded qualitatively. The frequency of the presence of gene loci and their alleles was found as many as 8 gene loci, namely: w-W; A A; B-b; C_cb_cs_ca_c; Ta_T_tb; D-d; s-S; OO-oo-Oo; and M-m, and no D-d and I-i gene loci were found. It was concluded that the observed gene locus expression of the Angora crossbreed cat had a variety of random allele frequencies, and did not indicate any particular allele dominance.
Efek Metode Peta Konsep dalam Pembelajaran Inkuiri Terbimbing terhadap Keterampilan Proses Sains Siswa I Putu Artayasa; Muhlis Muhlis; Gito Hadiprayitno; I Wayan Merta
Bioscientist : Jurnal Ilmiah Biologi Vol 9, No 1 (2021): 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/bjib.v9i1.3711

Abstract

Science process skills include cognitive and psychomotor skills that can contribute to helping students learn facts, concepts, principles, or theories, so that students can effectively study science. This research was conducted to examine whether there is an effect of implementing the concept map method in guided inquiry learning on students' science process skills. The study was conducted with an Intact Group Comparison design. The research subjects were junior high school students in Mataram City. The research took place in the even semester of the 2020/2021 academic year. Purposive sampling technique was applied to obtain a sample of 91 individual students from two junior high schools. The results showed that, students who implemented concept map preparation during guided inquiry learning had a higher science process skill score than students who applied guided inquiry learning, but did not make concept maps and conventional class students. The conclusions of this study indicate that the preparation of concept maps in guided inquiry learning has a significant effect on students' science process skills. Based on these conclusions, it is recommended that educators try to apply guided inquiry learning, accompanied by assignments to make concept maps.
Uji Aktivitas Ekstrak Etanol Biji Buah Merah (Pandanus conoideus Lamk.) terhadap Bakteri Escherichia coli dan Staphylococcus aureus Asrianto Asrianto; Asrori Asrori; Loly Sabrina Sitompul; Indra Taufik Sahli; Risda Hartati
Bioscientist : Jurnal Ilmiah Biologi Vol 9, No 1 (2021): 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/bjib.v9i1.3437

Abstract

Infectious diseases can be caused by one of four different organisms, namely: bacteria, fungi, viruses, and parasites. This study aims to determine the ability and concentration of the best ethanol extract of red fruit seeds (Pandanus conoideus Lamk.) In inhibiting the growth of Escherichia coli and Staphylococcus aureus infectious bacteria. This research is an experimental study using a completely randomized design (CRD). The stages of work carried out consisted of: sample preparation, sample extraction, solution concentration preparation, and inhibition testing. The research work procedure began with the process of preparing a sample of red fruit seeds into powder. The maceration method was used for extraction using 96% ethanol with a ratio of 1: 3. The concentration of the extract was made by mixing the macerated extract with aquadest solvent. The concentration variations made were: 0.31%, 0.63%, 1.25%, and 2.50%. Inhibition testing against bacteria was carried out using the Kirby-Bauer method. The data obtained were analyzed using Analysis of Variance (ANOVA). The results showed that the ethanol extract of red fruit seeds had bioactive compounds that could inhibit the growth of Escherichia coli and Staphylococcus aureus bacteria. The bioactive compounds consist of phenols, flavonoids, steroids, terpenoids, alkaloids, and tannins. The average diameter (mm) of the inhibition zone of Staphylococcus aureus bacteria was greater than the average diameter (mm) of the inhibition zone in Escherichia coli bacteria due to differences in the structure of their cell walls. The increase in the concentration of the solution is directly proportional to the diameter of the formed zone of inhibition. The higher the concentration given, the larger the diameter of the inhibition zone is seen. Duncan test analysis showed that 2.5% ethanol extract concentration was the best concentration in inhibiting bacterial growth.

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