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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 98 Documents
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Search results for , issue "Vol. 11 No. 2 (2023): December" : 98 Documents clear
Tepung Labu Kuning (Cucurbita moschata), Tepung Porang (Amorphophallus muelleri Blume), dan Kombinasi Kedua Tepung sebagai Penurun Gula Darah dan Peningkat Motilitas Spermatozoa Mencit (Mus musculus) Sukarjati, Sukarjati; Evarina, Melinda Yuti; Andriani, Vivin
Bioscientist : Jurnal Ilmiah Biologi Vol. 11 No. 2 (2023): 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.v11i2.8941

Abstract

Diabetes Mellitus (DM) is a global epidemic with high morbidity and mortality. Diabetes Mellitus (DM) is thought to have a negative impact on sperm quality. Yellow pumpkin contains antioxidants that can neutralize free radicals which can improve fertility. Glucomannan is a substance contained in porang which functions as a soluble fiber and plays a role in blood glucose balance. This study aims to examine pumpkin flour, porang flour and a combination of both flours on sperm motility and body weight of alloxan-induced diabetic mice. This study used 25 mice aged 3 months, body weight 25gr-30 gr. This study used a completely randomized plan (CRD) with 5 replications and 5 treatments. The treatments were negative control (diabetic mice), positive control (administration of glimepiride at a dose of 0.0078 mg/mice per day), D1 (pumpkin flour 134.4 mg/30g BW of mice), D2 (porang flour 63mg/30g BW mice), D3 (combination 50% : 50% = 67.2 mg : 31.5 mg/30 grBW mice). Diabetic mice were made by intraperitoneal induction of alloxan dose of 200 mg/Kg for 3 days. The parameters observed were spermatozoa motility, body weight and blood sugar levels of the mice. The research data were analyzed using the ANOVA test followed by the BNT test. The results showed that the administration of glymeride, pumpkin flour, porang flour and their combination had a significant effect on reducing blood sugar (p=0.000) and sperm motility (p=0.000), but had no effect on body weight (p=0.317). Conclusion: pumpkin flour, porang flour or a combination of both flours can be used as herbs to lower blood sugar and increase sperm motility in diabetes sufferers.
Variasi Ukuran Payudara sebagai Daya Tarik Fisik Perempuan di Masyarakat Lampung Nurhayu, Winati; Luxiana, Eri; Darmawan, Andy; Mulyana, Jeane Siswitasari; Maretta, Gres
Bioscientist : Jurnal Ilmiah Biologi Vol. 11 No. 2 (2023): 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.v11i2.8955

Abstract

Sexual selection occurs when living organisms, including humans, exhibit specific preferences for morphological traits related to health and fertility when choosing a mate. Various physical characteristics such as body size and shape, leg length, skin color, hair length and color, facial features, and breast size contribute to the physical attractiveness of females in mate selection. Breasts can serve as a particular attraction for males, as they are believed to be associated with health and fertility for reproductive purposes. Sexual selection leads to a range of breast sizes, from small to large, within a population. The aim of this research is to investigate the variation in breast size preferences among females in the Indonesian society, specifically in Lampung. The study was conducted by distributing both online and offline questionnaires randomly with breast size stimuli in the form of images. Descriptive data analysis was employed to examine the variation in breast size preferences. Very large breast sizes were considered healthy and feminine by respondents, while medium sizes were deemed attractive. Married male respondents preferred larger breast sizes on average compared to unmarried respondents. Higher-income respondents tended to select larger breast sizes. Respondents with lower educational backgrounds tended to prefer smaller breast sizes. Respondents residing in rural areas preferred larger breast sizes compared to those living in urban areas. In conclusion, sexual selection applied among the population of Lampung in the context of breast size preferences.
Pengaruh Larutan Hara dan Pupuk Organik Cair Urin Kelinci terhadap Pertumbuhan Pakcoy (Brassica rapa L.) pada Teknik Hidroponik Iqlima, Selesa; Rachmawati, Diah
Bioscientist : Jurnal Ilmiah Biologi Vol. 11 No. 2 (2023): 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.v11i2.8957

Abstract

The demand for pakcoy (Brassica rapa L.) a nutritious vegetable is increasing without being balanced due to the limited of agricultural land. The Wick system hydroponic cultivation technique can be a solution to increase pakcoy productivity. AB mix hydroponic nutrient solution is difficult to reach because it is expensive and has a negative impact on plants. It can be combined with rabbit urine LOF to provide essential nutrients for plants. This research aims to determine the effect of the combination of AB mix with LOF rabbit urine on the growth of pakcoy plants. The research design is CRD, 1 factor, 8 treatments, and 3 replications. Treatments include A1P0=AB mix 100% +0mL/L LOF rabbit urine, A1P1=AB mix 100% + 1mL/L LOF rabbit urine, A1P2=AB mix 100%+2mL/L LOF rabbit urine, A1P3=AB mix 100% +3 mL LOF rabbit urine, A2P0=AB mix 75%+0mL LOF rabbit urine, A2P1=AB mix 75%+1mL/L LOF rabbit urine, A2P2=AB mix 75%+2mL/L LOF rabbit urine, and A2P3=AB mix 75%+3mL/L L of rabbit urine.The addition of rabbit LOF gave the best results with AIP3 treatment on growth parameters, plant height, number of leaves, leaf area, fresh weight of shoots, and roots, dry weight of shoots and roots, respectively 27.41 ± 1.44 cm, 17.33 ± 0.95 pieces 632.89±228.20cm2, 61.88±13.42g, 1.648±0.374g, 3.132±0.614g, and 0.101±0.021g. The essential nutrient content of rabbit urine LOF increases the availability of internal nutrients which are influenced by metabolism, absorption capacity, water and sunlight.
Kelayakan Media Interaktif Berbasis Nearpod pada Materi Sistem Ekskresi di Kelas XI SMA Ningsih, Kurnia; Panjaitan, Ruqiah Ganda Putri; Pinawadhani, Rofiana Kusuma
Bioscientist : Jurnal Ilmiah Biologi Vol. 11 No. 2 (2023): 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.v11i2.8961

Abstract

The rapid development of information technology in the era of globalization has changed the paradigm of society. Global demands for utilizing technology also influence education, which is always aligned as a form of effort to improve the quality of education. Nearpod is a media in the form of a web application that allows students and educators to interact face-to-face or remotely, and is able to provide innovative, interactive and effective learning experiences. The aim of this research is to develop nearpod-based interactive learning media on excretory system material in class XI. The method used is research and development with the ADDIE development model limited to the development stage. Validation was carried out by five validators with three aspects of media assessment, namely language, material and media aspects. The validator's assessment was tested using validity analysis using Aiken and reliability using ICC, and obtained a validity analysis result of 0.92 which was in the very high validity category, and a reliability analysis result of 0.796 which was in the good category, so it can be concluded that nearpod media is valid and feasible used in learning.
Karakterisasi dan Uji Aktivitas Antimikroba Bakteri Kandidat Probiotik dari Terasi Udang Rebon Mawardika, Herlinda; Pertiwi, Krisna Kharisma; Wahyuni, Dwi; Aulia, Qosania Wilda
Bioscientist : Jurnal Ilmiah Biologi Vol. 11 No. 2 (2023): 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.v11i2.8981

Abstract

Probiotics are live microorganisms that are widely used to help maintain a healthy digestive system. Some compounds secreted by these bacteria have a bactericidal effect on pathogenic and putrefactive bacteria. Various types of probiotic bacteria can be obtained from fermented foods and drinks. This research aims to characterize bacteria from rebon shrimp paste in Macajah Village, Tanjung Bumi District, Bangkalan Regency, East Java Province which have potential as probiotics and test their antimicrobial activity against pathogenic bacteria. Bacteria were isolated using the Pour Plate technique using de Man Rogosa Sharpe Agar media. The bacterial isolates were then characterized by observing colony morphology, cells and biochemical properties. Next, antibacterial activity was tested using the well diffusion method. The results showed that the four bacteria obtained from the samples were gram positive, round and rod shaped, catalase negative, homofermentative, grew at a temperature of 37-45°C, survived at NaCl concentrations of 4 and 6.5%, low pH, and bile salts. According to the characterization results, three bacterial isolates belonged to the genus Enterococcus and one other isolate belonged to the genus Bacillus. Bacillus isolate is a potential probiotic candidate, because it has inhibitory activity against Escherichia coli and Staphylococcus aureus.
Karakterisasi Bakteri Rhizosfer Putri Malu (Mimosa pudica) yang Berpotensi sebagai Dekomposer dalam Pembuatan Biourin Febriyantiningrum, Kuntum; Sriwulan, Sriwulan; Nurfitria, Nia
Bioscientist : Jurnal Ilmiah Biologi Vol. 11 No. 2 (2023): 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.v11i2.8986

Abstract

This research aims to determine the characterization of the rhizosphere bacteria of the roots of Mimosa pudica in its contribution as a decomposer agent that will be used in making of biourine. The research held in June-August 2023, was carried out in several stages, like the preparation stage, the bacterial isolation stage, and observing the macroscopic and microscopic characteristics of the bacteria. The results of the macroscopic and microscopic characteristics obtained during the observations showed that the isolates in the MOL of the roots of Mimosa pudica resembled the characteristics of bacteria from the genera Bacillus (MAP6), Rhizobium (MAP4), Pseudomonas (MAP1, MAP2, MAP3, MAP5, and MAP8), and Klebsiella (MAP7). These four genera are types of soil bacteria that are capable of producing plant hormones that can speed up the process of nutrients absorption and breakdown of organic material in the soil optimally.
Penerapan Teams Game Tournament untuk Meningkatkan Motivasi Belajar pada Submateri Struktur dan Fungsi Reproduksi Manusia Reza, Muhammad; Panjaitan, Ruqiah Ganda Putri; Ruslah, Ruslah
Bioscientist : Jurnal Ilmiah Biologi Vol. 11 No. 2 (2023): 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.v11i2.9000

Abstract

This research aims to increase students' learning motivation on the sub-material of the structure and function of the human reproductive system, using the Teams Game Tournament learning model. This research is collaborative action research carried out at SMP Negeri 6 Pontianak from July to August 2023. The research was carried out in two learning cycles. Each cycle consists of four stages, namely planning, implementation, observation and reflection. The research subjects came from class IX F students with a total of 28 students consisting of 12 men and 16 women. The instruments used were learning implementation observation sheets and student learning motivation questionnaires. Data analysis uses descriptive statistical techniques. The learning process in cycle 1 was carried out with a percentage of 86% and increased in cycle 2 to 100% with very good criteria. The percentage value of student learning motivation in cycle 1 was 72.73%, and increased in cycle 2 to 80.20% with high criteria. Students with high learning motivation in cycle 1 were 55.85%, and increased in cycle 2 to 83.57%. It can be concluded that the application of the Teams Game Tournament model can increase student learning motivation in the sub-material of the structure and function of the human reproductive system.
Performa Rapid Diagnostik Tes Hepatitis B dengan ELISA sebagai Gold Standar Andayani, I Gusti Ayu Sri; Rizki, Mohammad; Sriasih, Made; Tauhida, Ika Nurfitria
Bioscientist : Jurnal Ilmiah Biologi Vol. 11 No. 2 (2023): 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.v11i2.9035

Abstract

The ELISA (Enzyme Linked Immunoassay) method has high sensitivity and specificity, qualitatively and quantitatively detecting Hepatitis B Surface Antigen (HBsAg) levels, but the process is long, expensive and requires special expertise, compared to the Rapid Diagnostic Test (RDT) as a rapid test which is more practical and cheaper. The aim of this study was to compare the sensitivity and specificity of the Entebe Rapid Test Diagnostic (ERTD) produced by PT. Hepatika Mataram, with ELISA as the gold standard in detecting HBsAg. The requirement for interpreting sensitivity and specificity results according to World Health Organization (WHO) standards is a minimum of 95%. Testing with a negative panel of 00 samples and a positive panel of 1 samples from Papua in 012 at -80℃ storage. Testing in April 023 at the Molecular Diagnostics and Research Laboratory, Mataram University Hospital. Statistical analysis using MedCal software. ERD HBsAg produced by PT. Hepatika Mataram has a sensitivity of 95.45%, specificity of 99.50%, positive predictive value of 93.59%, negative predictive value of 99.65%, and accuracy of 99.21%.
Peningkatan Hasil Belajar Peserta Didik Menggunakan Model Discovery Learning pada Submateri Perkembangbiakan Tumbuhan Setiyawati, Neni; Panjaitan, Ruqiah Ganda Putri; Wartiningsih, Wartiningsih
Bioscientist : Jurnal Ilmiah Biologi Vol. 11 No. 2 (2023): 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.v11i2.9038

Abstract

This research aims to improve student learning outcomes through the application of the discovery learning model to the sub-material of plant reproduction. The type of research used is collaborative classroom action research. The research was carried out in 2 cycles consisting of planning, implementation, observation and reflection. The subjects in this research were students in class IX F of SMP Negeri 12 Pontianak, consisting of 32 people. Data were collected using observation sheets on learning implementation and evaluation questions consisting of 10 description questions. The results of the research show that the application of the discovery learning model can improve student learning outcomes, namely in cycle 1 the number of students who got a passing grade was 16 people with a percentage of 50% and experienced an increase in cycle 2, namely the number of students who got a passing grade became 23 people with a percentage of 71.87%. It can be concluded that the application of the discovery learning model to the sub-material of plant reproduction can improve the learning outcomes of class IX F students at SMP Negeri 12 Pontianak.
Preliminari Eksperimen dalam Penginduksian Akar Stek Tumbuhan Tetrastigma papillosum Inang Rhizanthes deceptor Chairul, Chairul; Sefmaliza, Rizka; Idris, M.
Bioscientist : Jurnal Ilmiah Biologi Vol. 11 No. 2 (2023): 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.v11i2.9045

Abstract

Tetrastigma is a genus in the Vitaceae family which is characterized by the presence of tendrils. This plant has a liana habit, which requires tall plants as support in its life. Induction of host roots, Tetrastigma papillosum, in this study, used Naphthalene Acetic Acid (NAA), which is a class of auxin that functions to induce cell expansion and initiation of rooting. This research was conducted using a Completely Randomized Design (CRD) with 5 treatments and 5 replications. Several NAA concentrations as treatments consist of A (0 ppm), B (2.5 ppm), C (5 ppm), D (7.5 ppm), and E (10 ppm). Root induction of Tetrastigma papillosum can be initiated with NAA at small concentrations because endogenous auxin induces roots more quickly.

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