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Jurnal Pembelajaran dan Biologi Nukleus
Published by Universitas Labuhanbatu
ISSN : 24429481     EISSN : 26857332     DOI : https://doi.org/10.36987/jpbn
Core Subject : Science, Education, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media
Jurnal Pendidikan Biologi merupakan jurnal elektronik yang merupakan wadah penerbitan artikel penelitian original yang terkait dengan penelitian pendidikan biologi. Jurnal ini dikelola oleh Program Studi Pendidikan Biologidibawah naungan LPPM Universitas Labuhanbatu. Jurnal ini diterbitkan dua kali dalam setahun pada bulan Maret dan September. Jurnal ini menyajikan hasil penelitian dibidang Pendidikan Biologi dan sains Biologi.
Arjuna Subject : Biokimia, Genetika dan Biologi Molekuler - Biokimia, Genetika dan Biologi Molekuler (Lain-Lain)
Articles 437 Documents
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Morphometric Differences in Body Dimensions of Local Goats Ladongi District, East Kolaka Regency Badaruddin, Rusli; Indi, Amiluddin; Hadini, Hairil Adzulyatno; Aka, Rahim; Munadi, La Ode Muh
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 8, No 2: Jurnal Pembelajaran Dan Biologi Nukleus Juli 2022
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v8i2.2560

Abstract

Goats are generally kept quite a lot and are livestock that have the potential to produce meat to meet protein of animal origin. This study aims to determine the difference between the body dimensions of local goats in Ladongi District, East Kolaka Regency with the research material of 165 Kacang goats and 121 Jawarandu goats. Peanut goats were divided into 3 age groups, namely (≤12 months, 13-24 months, >24 months) each with 87, 46, 32 heads, and Jawarandu goats were divided into 3 age groups (≤12 months, 13 months). -24 months, >24 months) each were 49, 33, 39 using a purposive sampling research method. Research parameters include the body measured includes body length, shoulder height, chest circumference, chest depth, hip height, hip width, and body weight. The data obtained were processed to obtain a correlation (r). The results showed that the age difference was very significant. The conclusion of the research variable that has the strongest correlation value in estimating body weight is chest circumference
Quality of Effective Microorganisms-based Liquid Fertilizer from Fermented Papaya Fruits (Carica papaya L.) Simarmata, Wilander; Yurnaliza, Yurnaliza; Nurwahyuni, Isnaini
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 8, No 2: Jurnal Pembelajaran Dan Biologi Nukleus Juli 2022
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v8i2.2733

Abstract

Papaya (Carica papaya L.) is one of the most popular fruits in the community and is generally only used as an ingredient for consumption in a fresh state. Papaya fruit production tends to be dynamic where sometimes the abundant amount of fruit may not necessarily be marketed directly. This causes the stock of papaya fruit during storage to rot and cannot be reused. This study aims to explore the potential of ripe papaya fruit to be processed as a substrate for the manufacture of liquid fertilizer using local microorganisms or effective microorganisms (EM). The quality of EM-based liquid fertilizer was determined based on the bacterial population density (CFU/mL) using the standard plate count (SPC) method on different growth media, then the levels of IAA and NPK in the applied fermented papaya fruit. The results showed the occurrence of nitrogen fixing bacteria, phosphate solubilizing bacteria and chitinolytic bacteria besides the cosmopolite bacteria. The optimum level of IAA in the fermented papaya fruit was EM + molasses (100%) while the NPK profile was still higher in the EM treatment without molasses.
Discovery Learning Assisted by Audiovisual Learning Media: Its Effect on Student Biology Learning Outcomes Siregar, Hafiva Hanum; Adlini, Miza Nina
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 8, No 2: Jurnal Pembelajaran Dan Biologi Nukleus Juli 2022
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v8i2.2885

Abstract

Pembelajaran konvensional yang berpusat pada guru (Teacher centered) dapat menimbulkan rasa bosan siswa. Hal ini berdampak negatif terhadap hasil belajar siswa. Penelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran discovery learning berbantuan media pembelajaran audiovisual dalam pembelajaran Biologi terhadap hasil belajar Biologi siswa. Penelitian ini merupakan Eksperimental semu (Quasi Experimental) dengan Non equivalent control group design. Populasi penelitian ini adalah kelas XI MIA yang terdiri atas empat kelas dengan total 141 siswa. Sampel berjumlah dua kelas yang diambil menggunakan teknik purposive sampling, tiap kelas terdiri atas 36 siswa. Kelas XI MIA 1 sebagai kelas eksperimen yang menerapkan model pembelajaran discovery learning berbantuan media pembelajaran audiovisual, sedangkan kelas XI MIA 3 sebagai kelas kontrol yang menerapkan model pembelajaran konvensional. Instrumen penelitian berupa tes tertulis berbentuk pilihan ganda dengan jumlah 20 soal. Data yang didapatkan dianalisis menggunakan uji t. dan diperoleh hasil bahwa terdapat pengaruh model pembelajaran discovery learning berbantuan media pembelajaran audiovisual terhadap hasil belajar Biologi siswa. Penerapan model pembelajaran discovery learning dapat dijadikan sebagai pilihan guru untuk meningkatkan hasil belajar siswa. Serta penggunaan media audiovisual dapat mempermudah guru dalam menyampaikan materi pelajaran, sehingga kegiatan pembelajaran dapat berjalan efektif dan efisien.
The Influence of the Cycle 5E's Learning Model on Students' Critical Thinking Ability Nasution, Ahmad Maulana; Adlini, Miza Nina
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 8, No 2: Jurnal Pembelajaran Dan Biologi Nukleus Juli 2022
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v8i2.2923

Abstract

Education is a learning process in which students welcome and master knowledge. The ability to know the importance of skills that are very important and very important in all aspects of life, especially in education. This study aims to determine the effect of the 5E learning cycle learning model on the critical thinking ability of the Senior High School of Second grade (XI MIA class) SMA Negeri 1 Batangkuis students. This research is a quasi-experimental study in which the research population consists of two class students at SMA Negeri 1 Batang Kuis, namely class XI MIA1 as the experimental class and XI MIA2 as the control class, each of which contains 31 and 29 people. Data collection techniques in the form of critical thinking test results that refer to cognitive learning tests in the form of multiple choice questions as many as 20 questions. The sampling technique of this study used cluster random sampling, namely random sampling which was calculated using covariance analysis. The results of this study gained a data significance of 0.000 <0.05, meaning there is an effect of linear discrimination on critical thinking skills. Hopefully, we can develop vital thought skills by increasing the concentration of learning together to build ideas and keep students active in the classroom
Development of Student Worksheets Based on Discovery Learning for the Plant World Material During the New Normal Learning Period Ritonga, Indah Lestari; Anas, Nirwana
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 8, No 2: Jurnal Pembelajaran Dan Biologi Nukleus Juli 2022
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v8i2.2762

Abstract

Learning activities in the new normal era in schools are starting to re-run a different learning process from before which must create creative learning so that it can produce outstanding students. Discovery learning-based worksheets are intended to provide direct learning knowledge and meaningful learning process processes so that they are able to direct students to find learning concepts. The purpose of this research is to produce LKPD-oriented learning material discovery in the plant world which is declared feasible, practical, and effective in its use in the process of learning activities. The development model in this study is 4D which consists of 4 stages, namely define, design, development, and disseminate, research subjects for students of 1st class (X IPA 1) of Senior High School of SMA Negeri 2 Rantau Selatan. The research instruments are expert & media expert validation sheets on feasibility testing, practitioner validation sheets to determine practicality, as well as pretest and post-test sheets and student response sheets for effectiveness testing. The results of the study prove that the discovery learning-oriented worksheets developed are declared very feasible with a percentage of 85.5%, very practical with a percentage of 93.5%, and very effective with an increase in learning in the medium category which has been tested with n-gain with a score of 0, 5 and the student's response was very good with a percentage of 82.4%. The results of the study concluded that the discovery of learning-oriented student worksheets that were developed was very feasible, very practical, and very effective in their use in the learning process
Identification, Pathogenesis and Virulence Test of Fungus Causes Postharvest Disease of Gedong Gincu Mango from Pal Market, Cimanggis, Depok Arti, Inti Mulyo; Asnur, Paranita; Kurniasih, Ratih; Ramdan, Evan Purnama
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 8, No 2: Jurnal Pembelajaran Dan Biologi Nukleus Juli 2022
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v8i2.2628

Abstract

Mango is a climacteric fruit that can increase in maturity after harvest. As a result, mangoes will rot more easily because they are infected with pathogens such as fungi. The objectives of the study were to identify, examine the pathogenicity, and virulence of the fungus that causes postharvest disease in mangoes. Sampling of mangoes was carried out at the Pal market, Cimanggis, Depok by selecting fruits that were indicated to be infected with post-harvest diseases. Symptoms that appear are then described visually. Isolation of the fungus was carried out from the part of the mango fruit on Potato Dextrose Agar (PDA) media, then it was identified morphologically both macroscopically and microscopically. The virulence test was carried out by inoculating the fungus at 4 inoculation points of mango fruit. The results showed that the symptoms that appeared were symptoms of anthracnose in the form of blackish brown, sunken, and widespread spots on the mango skin. The results of morphological identification showed that the associated fungus was Colletotrichum gloeosporiodes which was characterized by white fungal colonies and fast growth, while the condia were cylindrical in shape with rounded ends. Confirmation results with Koch's postulates showed that postharvest anthracnose in mangoes was caused by C. gloeosporiodes. Meanwhile, virulence testing showed that C. gloeosporiodes had moderate to high virulence levels with symptomatic lesions ranging from 2,50 to 5,85 cm.
Crude Palm Oil (CPO) Quality Analyze of Elais guineensis at Palm Oil Mill PT. Sinar Pandawa, Labuhanbatu Regency (Based on Free Fatty Acid Levels, Water Content, and Impurities) Shidiq, Muhammad; Lestari, Widya; Saragih, Siti Hartati Yusida
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 8, No 2: Jurnal Pembelajaran Dan Biologi Nukleus Juli 2022
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v8i2.2705

Abstract

The primary need for cooking oil or edible oil, the demand for cooking oil raw materials increases from year to year, this increase forces producers of crude palm oil (CPO) to compete to produce quality CPO products. PT. Sinar Pandawa, which is located in the Sennah plantation village, Batang downstream district, Labuhan Batu district, is one of the companies that produce CPO. Therefore, this study aims to determine the quality of CPO PT. Sinar Pandawa has good quality by using an analysis process of free fatty acid levels, namely the amount of free fatty acids resulting from hydrolysis and fat oxidation reactions, water content, namely the amount of water content in CPO and levels of impurities are foreign substances that do not dissolve. The method used in this research is titration using 0.1 NaOH solution for analysis of free fatty acid levels. The oven is open for moisture analysis i.e. heating the sample until the remaining water evaporates. Gravimetry for analysis of impurities content by filtering the sample using Whatman filter paper. The results show that the quality of CPO at PT. Sinar Pandawa which has the highest levels of fatty acids at 5.08%, water content of 0.35% and dirt content of 0.034%. The results of the analysis that has been carried out stated that the quality of CPO PT. Sinar Pandawa has not met the quality standards of SNI. The high value of each parameter, namely free fatty acid content, water content and dirt content with test values in accordance with SNI-2901-2006 maximum free fatty acid content of 5%, 0.25% water content and 0.25% dirt content indicates a lack of quality. CPO produced by PT. Sinar Pandawa due to lack of quality control
Development of Biology Magazine (Biozine) Integrated Islamic Values in Biotechnology Materials Hastini, Fera; Tanjung, Indayana Febriani
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 8, No 2: Jurnal Pembelajaran Dan Biologi Nukleus Juli 2022
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v8i2.2798

Abstract

The development of an integrated biology magazine of Islamic values is carried out due to the lack of available resources to study biology in the most structured schools of Islamic values.  The reason of this research is to develop biological magazines, test the feasibility, practicality and effectiveness of magazines. This research uses the Research and Development (R&D) method of the ADDIE model (Analysis, Design, Development, Implementation, Evaluation). The data was collected using validation sheets by media experts, material experts, Islamic values material experts, response questionnaires of biology teachers and Third class (XI) of MIA 2 MAS Al-Washliyah 22 Tembung. The result show score were 94% with a category “very worthy” for the media feasibility test, score of 86.5% with a category “very worthy” of the material feasibility test, a score of 75% with a category “worthy” of the Islamic value material feasibility test. The practicality test scored 81% (teacher response) and 82% (student response) with “practical” categories. As well as the effectiveness test got an average N-Gain score of 0.72 with a “high classification” and was effectively used
Limited Scale of the Face-to-Face Learning Analyze to Student Learning Saturation for the First Grade (X Class) of Senior High School in Biology Lesson Siregar, Fatimah Zahara; Ulfa, Syarifah Widya
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 8, No 2: Jurnal Pembelajaran Dan Biologi Nukleus Juli 2022
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v8i2.2926

Abstract

This study aims to determine the level of student learning when face-to-face learning is limited to biology subjects at Senior High School of SMA Negeri 1 Batang Kuis and the factors that influence it. The research method uses qualitative methods. The research population includes three classes, namely X MIA Class with a sample of 35 students, namely X MIA1 Class and X MIA2 Class as many as 34 students and X MIA 3 Class as many as 31 students. Research data in the form of biology teacher interviews and student questionnaires were developed according to indicators of learning saturation, namely emotional exhaustion, physical exhaustion, cognitive fatigue, and loss of motivation. The data collected was processed using a Likert scale technique, which was measured and translated into variable indicators. The data analysis technique uses the Miles & Huberman model, which consists of 3 stages, namely data reduction, data presentation, as well as inference and validation. The results of this study show that during face-to-face learning the scale is limited to the indicator of emotional exhaustion of the dominant student in the saturated category, on the indicator of physical fatigue the dominant student is in the saturated category, on the indicator of cognitive fatigue the dominant student is in the saturated category, on the indicator of loss of motivation The dominant student is in the very saturated category
Antagonistic and Antibacterial Activity of Stapylocossus aureus and Isolates of Oral Bacteria from the Endogenous Fungus Apis dorsata Binghami Nest Semuel, Mokosuli Yermia; Wurarah, Masje; Tuegeh, Reinny Silvana
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 8, No 2: Jurnal Pembelajaran Dan Biologi Nukleus Juli 2022
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v8i2.2739

Abstract

Apis Dorsata Binghami honey bee is a honey bee endemic to Indonesia, living naturally in the forests of Sulawesi. This study aimed to obtain isolates and characteristics of endogenous fungi antibiotic activity from Apis dorsata Binghami nest. The research consisted of isolation of fungi from beehives using potato dextro agar, pure culture of fungi, antagonist test and antibiotic test using disc diffusion method. Antibiotic test was performed on oral bacteria and Staphylococcus aureus. The results obtained six isolates of fungi from the nest of Apis dorsata Binghami, namely isolates FAB1, FAB2, FAB3, FAB4, FAB5 and FAB6. The results of the antagonist test showed that the isolates FAB2 and FAB3 had the best antagonist properties, while the FAB6 isolates had the weakest antagonist properties. The FAB2 isolate showed the best bacterial growth inhibition zone average for the isolates of oral bacteria and Staphylococcus aureus. The inhibition zone lasts up to 3 x 24 hours so that the activity of the bacteria is bactericidal. From the results of this study, it can be concluded that the endogenous fungus Apis dorsata Binghami is a potential source of antibacterial bioactives.

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