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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 68 Documents
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Search results for , issue "Vol 10, No 2 (2022): December" : 68 Documents clear
Keanekaragaman Jenis Mangrove di Kawasan Hutan Lindung Pakonjawai Kabupaten Sumba Timur Ensi Bangu Kahi; Yohana Makaborang; Anita Tamu Ina
Bioscientist : Jurnal Ilmiah Biologi Vol 10, No 2 (2022): 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.v10i2.6397

Abstract

The purpose of this study was to determine the diversity of mangrove species in the Pakonjawai Protected Forest area, East Sumba Regency. The type of research in this study was an ecological descriptive study with a quantitative approach. The sampling technique used was a purposive sampling technique with sampling locations covering 3 observation stations using the line transect method (transect line plot). The results showed that the composition of the mangrove species found consisted of 5 families, 5 genera and 9 species with a total of 337 individuals consisting of 237 individual tree categories, 68 individual saplings and 32 individual seedlings. The mangrove species found were Rhizophora mucronata, Rhizophora apiculata, Rhizopora stylosa, Sonneratia alba, Sonneratia ovata, Avicennia alba, Bruguiera gymnorrhiza, and Sscyphiphora hydrophyllaceae. The diversity index at the tree growth rate was 1.9518, the sampling level was 2.0496 and the seedling level was 1.9588 which means that the diversity of mangrove species is "moderately abundant". The highest Important Value Index (IVI) at tree level was Sonneratia ovata with a value of 71.98 while the sapling level was for Rhizophora mucronata with a value of 38.15 and the seedling level for Rhizophora mucronata with a value of 45.41.
Analisis Kandungan Nutrisi dan Uji Kualitas Mikrobiologi pada Susu Kedelai di Pasar Pa’ Baeng-Baeng Kota Makassar Anastasia Susanti Jimin; Hasria Alang; Rezeki Amaliah
Bioscientist : Jurnal Ilmiah Biologi Vol 10, No 2 (2022): 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.v10i2.5774

Abstract

Soy milk is a processed soybean seed which is rich in nutrients, making it susceptible to pathogen contamination. The aim of the study was to analyze the feasibility of consuming soy milk at the Pa'Baeng-Baeng Market, Makassar City based on its nutrient content and microbial contaminants. The method used in this study was quantitatively to see nutrient levels and MPN values, and qualitatively to see the color changes formed as an indicator of the presence of the test pathogen. Samples were obtained from two places in the Pa'Baeng-Baeng Market, namely closed and clean locations (A), and open and dirty locations and close to landfills (B). The results showed that sample A had a water content of 92.87%; ash content 0.78%; crude protein 2.31%; crude fiber 0.0030%; carbohydrates 3.61%; and 0.43% fat. Meanwhile, sample B has a water content of 92.85%; ash content 0.78%; crude protein 3.06%; crude fiber 0.0042%; carbohydrates 3.06%; and 0.24% fat. The MPN values for samples A and B were >23/mL exceeding the required SNI because they contained Escherichia coli, so they were not in accordance with SNI, but there was no Staphylococcus aureus.
Pengaruh Model Pembelajaran Hybrid Learning terhadap Hasil Belajar Kognitif pada Materi Sistem Reproduksi Chairun Nisa; Efrida Pima Sari Tambunan; Riris Nurkholidah Rambe
Bioscientist : Jurnal Ilmiah Biologi Vol 10, No 2 (2022): 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.v10i2.6293

Abstract

Hybrid Learning refers to the learning process that combines or mix among learning process between face-to-face learning and computer-based learning. This Study aims to know the effect of the Hybrid Learning model on the results study on Theory system reproduction at XI grade of MAN Tebing Tinggi. The type of this study is Quasi Experiment with quantitative approach. The sample of this study are the experiment class were consisting of 30 students and controlling class were consisting of 31 students. The Technique of analyzing data collection by using 20 multiple choice test. The Validity of this research instrument obtained by validity test, reliability, difficulty level, and problem differentiator. The Technique of analyzing data by using Test Normality, Test Homogeneity and Test Hypothesis. Studies show tat students taught by applying the Hybrid Learning model have an average 80,83 learning result. Whereas the students taught by applying conventional learning models have an average result of learning 69,67. The conclusion of this study is that the results of the t test calculation show that the t count is 6.52 and the t table is 2.15 p with a significant level of 95 % or = 0.05. Because t count > t table (6,52> 2, 15), then the alternative research hypothesis (Ha)is accepted, which means the hypothesis answered. There is the effect of the Hybrid Learning model on results study students.
Proporsi Sari Labu Kuning (Cucurbita moschata) terhadap Karakteristik Yoghurt Layak Konsumsi Ditinjau dari pH dan Uji Organoleptik Lisa Alpina; Iwan Doddy Dharmawibawa; Titi Laily Hajiriah
Bioscientist : Jurnal Ilmiah Biologi Vol 10, No 2 (2022): 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.v10i2.5250

Abstract

Yogurt is one of the functional foods obtained from fermented milk with the help of Lactic Acid Bacteria (LAB). Several innovations were made to improve the functional properties of yogurt by adding ingredients rich in fiber, one of which is pumpkin. The nutritional content of pumpkin is quite complete, and its utilization is still minimal, so this pumpkin has the potential to be developed as an alternative in making yogurt. The purpose of this study was to determine the effect of the proportion of pumpkin juice on the characteristics of yogurt that is suitable for consumption in terms of pH and organoleptic tests. The research design used was a Randomized Block Design (RAK) using 3 treatments, namely: the first treatment 1:1 (pumpkin: water); second treatment 1:2 (pumpkin: water); and the third treatment 1:3 (pumpkin: water) with 4 replications. The pH test used a pH meter and pH 7 buffer. Based on the results of laboratory tests, the highest pH value was 6.67 in the first treatment (P1), and the lowest pH was 5.62 in the second treatment (P2). For the organoleptic test, the color is yellow to orange, the taste of yogurt obtained is slightly sour to sour, the aroma of pumpkin yogurt is pungent, and the texture is watery to thick.
Pemanfaatan Paket Genetika dalam Pembelajaran Pewarisan Sifat untuk Meningkatkan Motivasi dan Hasil Belajar Siswa Eddy Ilhamsyah
Bioscientist : Jurnal Ilmiah Biologi Vol 10, No 2 (2022): 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.v10i2.6089

Abstract

This research is a classroom action research that takes place in 2 (two) cycles, with the aim of knowing whether the use of the genetics package can increase the motivation and learning outcomes of class IX.1 students of SMP Negeri 1 Wawo, Bima Regency, West Nusa Tenggara Province. Data were collected with pre-test post-test instruments, student activity observation sheets, and student opinion response questionnaires. Data were analyzed using descriptive statistical analysis. Data presentation is done in the form of frequency distribution tables and group explanations through mean, median, standard deviation, and percentage. The results of the post-test data analysis in cycle I number of students who completed were 19 students (79.16%), and those who had not completed were 5 students (20.83%) with an average score of 74.44. In cycle II the number of students who completed were 21 students (87.50%), and those who had not completed were 3 students (12.50%) with an average score of 76.46. This means that it has exceeded the minimum completeness criteria that have been set classically, namely 85% with an average value of 75.00. The results of the analysis of student motivation data in cycle I average score of attention during learning was 83.25 (very good), asking or expressing opinions was 71.25 (good), and participation in study groups was 82.25 (very good), with an average score -average 78.91 (very good). In cycle II, the average score of attention during learning was 85.67 (very good), asking questions or expressing opinions was 71 (good), and collaboration with peers/participation in study groups was 81 (very good), with an average score of 79 .22 (very good). Based on the results of the data analysis, it can be concluded that the genetic package can increase the motivation and learning outcomes of class IX.1 students of SMP Negeri 1 Wawo in learning about inheritance.
Kesadaran Metakognitif Mahasiswa pada Perkuliahan Sistem pada Hewan dengan Penugasan Berbasis Portofolio dan Jurnal Belajar Ita Ainun Jariyah; Khoirotul Ummah
Bioscientist : Jurnal Ilmiah Biologi Vol 10, No 2 (2022): 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.v10i2.6719

Abstract

The rapid development of the digitalization era needs to be improved by problem-solving abilities in every challenge. One of the competencies that support problem-solving abilities is metacognitive strategies ability. Metacognitive awareness is an important competency in learning that must be mastered by students to be able to understand and control the knowledge they acquire. This research is a descriptive study to determine the proportion of students' metacognitive awareness in the lecture system on animals with portfolio-based assignments and learning journals. The results of the metacognitive analysis of awareness are used as a follow-up design for the next lecture to increase students' metacognitive awareness. Metacognitive awareness data is measured by metacognitive awareness which includes aspects of declarative knowledge, procedural knowledge, and conditional knowledge. The results showed that the students' metacognitive awareness was mostly in the medium category 66.67%, the rest in the low category 19.04%, and the high category 14.29%. These results indicate that students' metacognitive awareness still needs to be improved by making improvements in the next lecture process.
Studi Keanekaragaman Kupu-kupu (Papilionoidea) Berdasarkan Ketinggian di Kawasan Gunung Galunggung Kabupaten Tasikmalaya Ilham Pahman; Diana Hernawati; Diki Muhamad Chaidir
Bioscientist : Jurnal Ilmiah Biologi Vol 10, No 2 (2022): 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.v10i2.5742

Abstract

Papilionoidea or better known as butterflies is a type of insect that is often found around us. This study aims to analyze the diversity of butterflies in the Mount Galunggung Region, Tasikmalaya Regency based on different heights. The method used in this research is descriptive quantitative with the VES (Visual Encounter Surveys) technique for 6 days within 4 weeks, 09.00-11.00 WIB and 13.00-15.00 WIB at 3 observation stations, including: Cimedang waterfall area (700 masl ), Gado Bangkong waterfall area (800 masl), and Cikahuripan waterfall area (950 masl). The calculated observational data includes: Shannon-Wiener diversity index (H'), species evenness index (E), species richness index (R), dominance index (D), and similarity index (IS), as well as environmental parameter measurements including: height , temperature, light intensity, humidity, and wind speed. The results of the observations showed that there were 1,071 individual butterflies from 41 species that were successfully found. The Nymphalidae family is the most common butterfly with 22 species, and the most common butterfly species are Jamies celeno, Ypthima pandocus, and Lampides boeticus. Overall, the diversity value of the Galunggung Mountain Area as a whole is 3.10 which is classified as a high category, an evenness index of 0.84 is classified as a stable category, a species richness index of 5.73 is classified as a high category, and a dominance index of 0.06 is classified as a low category.
Mengungkap Hubungan Penguasaan Konsep dengan Kemampuan Mahasiswa Menggunakan Horizontal Translation across Mode pada Materi Fotosintesis Any Fatmawati; Husnul Jannah
Bioscientist : Jurnal Ilmiah Biologi Vol 10, No 2 (2022): 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.v10i2.6579

Abstract

Concept mastery is a person's basic ability to bring up other abilities in learning. Therefore it is necessary to conduct research on the relationship between mastery of concepts and other content such as the ability to use representations horizontally, which is referred to as cross-mode horizontal translation or HTM. One indicator of someone who has representational abilities is being able to express biological concepts by using representations horizontally. The purpose of this study was to determine the correlation of student mastery of concepts to representational abilities, especially HTM. The research method is a correlational analysis between concept mastery and HTM abilities. The research subjects were 37 students who had taken the Plant Physiology course at the Biology Education Study Program at the Mandalika University of Mataram, in the even semester of the 2019/2020 academic year. Data was collected using essay tests that had been assessed by experts and declared fit for use. Data analysis used a regression test at a significance level of 5%. The results showed that there was a correlation between concept mastery and students' representation abilities in interpreting scientific phenomena horizontally (HTM) in photosynthetic materials. The amount of loan provided by understanding the concept of representation ability is 55.70%.
Uji Aktivitas Antibakteri Ekstrak Daun Jambu Biji (Psidium guajava L.) terhadap Pertumbuhan Bakteri Escherichia coli Niken Niken; Rahmi Novita Yusuf; Annita Annita
Bioscientist : Jurnal Ilmiah Biologi Vol 10, No 2 (2022): 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.v10i2.5919

Abstract

Diarrhea is a disease that causes sufferers to have frequent bowel movements with watery or watery stools. One of the causes of diarrhea is Escherichia coli bacteria. One of the plants that has been used as an antidiarrheal is guava (Psidium guajava L.), especially the leaves. Guava leaves are known to contain phytochemicals, namely: tannins, flavonoids, alkaloids, saponins, and essential oils which function as antibacterials. This study aims to determine whether guava leaf extract can inhibit the growth of Escherichia coli bacteria. This research is a laboratory experimental study using the paper disc diffusion method (Kirby-Bauer). The sample used was Escherichia coli bacteria obtained from stool samples of diarrhea patients aged 8-12 years at the Nanggalo Health Center, Padang City, West Sumatra Province. The concentrations used in this study were 10%, 15%, 20%, and positive control for amoxicillin and negative control for distilled water. The results showed that the phytochemical test results for flavonoids, tannins and saponins, and alkaloids were positive. The antibacterial activity of guava leaf extract was shown to have inhibition against Escherichia coli bacteria with an average concentration of 10% with a diameter of 10.7 mm (strong), 15% with a diameter of 13.3 mm (strong), and 20% with a diameter of 17 mm (strong). ), 13 mm amoxicillin positive control, and 0 mm negative control. The results of the ANOVA test showed a value of p = 0.000 (sig. <0.05) that there was a significant difference between all treatments with a positive control. It can be concluded that guava leaf extract effectively inhibits the growth of Escherichia coli bacteria, this is because the diameter of the extract inhibition zone is larger than the positive control.
Pemanfaatan Adsorben Serbuk Marmer dan Batuan Manure Ayam Petelur terhadap Persentase Gas Bio Mohamad Imam Zarkasi; Mochammad Junus
Bioscientist : Jurnal Ilmiah Biologi Vol 10, No 2 (2022): 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.v10i2.6317

Abstract

This study aims to determine the effect of the adsorbents of marble powder and manure rock of laying hens on the percentage of bio-gas content, and to determine the optimization of the adsorbent treatment of manure rock of laying hens and marble powder in producing the percentage of bio-gas content and reducing the amount of bio-gas content other than CH4. The research material used was chicken manure rock and marble powder. The research method used was an experiment with RAL (completely randomized design), which consisted of 4 treatments and 4 replications. The treatment is without using adsorbents; 100% laying hen manure rock; 100% marble powder; and 50% marble powder + 50% manure rock laying hens. The variables observed in this study include the volume and time required for methane gas to flow through the adsorbent, the time required for methane gas to pass through the adsorbent to the gas-holding balloon as a sample, and the gas content in methane gas before purification, the percentage levels of CO2, CH4, O2, and N2. The results showed that the use of marble powder and manure rock adsorbents for laying hens on the percentage of biogas content gave no significant difference (P > 0.05) to the percentages of CH4, O2, and N2 gases, but gave a significant difference (P <0.05 ) to the percentage of CO2 gas of 11.33% was found in the P2 treatment which used 100% marble powder adsorbent. P2 treatment was able to reduce CO2 levels by 59.70%. It can be concluded that the greater the CH4, the better the calorific value and is inversely proportional to CO2.

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