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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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The Effect of Basil Leaves (Ocimum sanctum L.) as Natural Preservative for Mackerel (Rastrellinger sp.) Rahmiati, Rahmiati; Nurtjahja, Kiki; Nasution, MHD. Fauzi
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 9, No 1: Jurnal Pembelajaran Dan Biologi Nukleus March 2023
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v9i1.3895

Abstract

Basil is a plant that can be used as a traditional medicine. One part of the basil plant used as an alternative medicine is the leaves. Basil leaves contain active compounds, including flavonoids, saponins, tanins, and essensial oils. These active compounds is able to prevent the presence of pathogenic bacteria that can accelerate food spoilage, so that basil leaves can be used as an alternative natural preservative. The objective of the study was to determine the ability of basil leaves as a natural preservative for  mackerel. The research was carried out in vitro, by observing the physical, chemical, and microbiological characteristicts of mackerel which were treated 8 hours of soaking basil leaf extract. Variations in the concentration of basil leaves used were 0, 25, 50, 75 and 100%. The results showed that the physical quality of the 8-hour storage samples showed changes in the physical quality of the fish, as seen from the color, eyes, gills, mucus, aroma and texture. The microbioloical quality of fish was analyzed by the total plate number method. The total number of bacteria decreased as the concentration of basil leaf extract increased
Misconceptions Analysis of Biology Textbooks for First Grade of Senior High School of the 2013 Curriculum on Protist Lesson Elnissa, Aura; Jayanti, Ummi Nur Afinni Dwi
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 9, No 1: Jurnal Pembelajaran Dan Biologi Nukleus March 2023
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v9i1.3890

Abstract

This research aims to determine the misconceptions and the category of misconception found, and the percentage of misconceptions found in biology textbooks on first grade of senior high school curriculum 2013 for Protist material. This type of research is content analysis. The research sample consisted of 3 biology textbooks on first grade of senior high school curriculum 2013, selected using a purposive sampling technique which had previously been observed in several schools in Medan. The object of this research is the material concepts of Protist. The analysis of misconceptions in this study was based on Hershey's five categories of misconceptions, Oversimplifications, Overgeneralizations, Obsolete concepts and terms, Misidentification, and Undergeneralization. The results showed that in Book A there were 2 misconceptions found,namely in the Oversimplications and Undergeneralization. In Book B there are 4 misconceptions, namely in the Oversimplication and Misidentifications. In Book C there are 3 misconceptions, namely in the Oversimplications.The percentage of misconception categories found were Oversimplifications (0.83%), Misidentifications (0.11%), and Undergeneralization (0.11%). Meanwhile, the Overgeneralizationsand Obsolete concepts and terms categories were not found in the three textbooks
Students Learning Independence from Different Specialization Classes: A Comparative Study Sele, Yunawati; Sila, Vinsensia Ulia Rita; Oetpah, Fincensius; Kabnani, Yuliana
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 9, No 1: Jurnal Pembelajaran Dan Biologi Nukleus March 2023
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v9i1.3925

Abstract

The purpose of this study is to examine the learning independence of students in different specialization classes. This study employed a quantitative, comparative approach. The subjects of the study were class X SMA.  There are 21 students in class X MIPA and 36 students in class X IPS in SMA Nurul Fallah Kefamenanu. A questionnaire about learning independence was used to collect data. The results indicated that students in different specializated classes differed in their independence in learning. The learning independence of MIPA specialized students is 19.99% greater than that of IPS specialization students. This may be due to the inappropriate grouping of specialization classes and the existence of a negative stigma towards students enrolled in IPS specialization classes. This stigma has the potential to have a negative impact on self-confidence, learning motivation, learning creativity and student learning discipline. Therefore efforts that need to be made are to improve the system for determining specialization classes and to provide equal opportunities and support for each student to develop themselves according to their interests, talents and potential
Implementation of Independent Learning: Chemobio-Enterpreneurship in Junior High School Sri Adelila Sari; Ameilia Zuliyanti Siregar; Faidul Rasyid Hutabarat
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS (JPBN) Vol 9, No 1 (2023): Jurnal Pembelajaran Dan Biologi Nukleus March 2023
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v9i1.3778

Abstract

In order to achieve learning objectives that can assist students in discovering and understanding chemical and biological concepts related to everyday life, an approach is needed that is able to make chemistry and biology material a very interesting and important subject to study and understand. The Chemo-Bio Entrepreneurship (CBEP) approach incorporates entrepreneurial values into learning according to the demands of independent learning. This is in response to the needs of the Industrial Revolution 4.0 era. The purpose of this research was to help motivate teachers and students to have an entrepreneurial spirit. In addition, learning chemistry and biology will be more fun and provide opportunities for students to optimize their potential to produce products. Thus, the economy of the school community can be developed, as a source of financial input for schools. The research samples were students and teachers of Junior High School 3 Tanjung Morawa 3, Deli Serdang which were taken using purposive sampling. The methods used were observation, interviews, Focus Group Discussion (FGD) and training in making compost and natural hand sanitizers. Data were analyzed using qualitative and quantitative descriptive statistics. The results showed that the understanding and skills of students and teachers before and after being given training in making compost and natural hand sanitizers were found to be increased. It was suggested to science teachers and school members to continue to practice good practices and be able to pass them on to teachers of other subjects. Thus, the productivity of teachers and students as entrepreneurs is well maintained
Isolation and Identification of Lactic Acid Bacteria from Channa sp. as Potential Probiotic Bayu, Hendi Hendra; Irwanto, Riko; Dalimunthe, Nurzaidah Putri; Lingga, Rahmad
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 9, No 1: Jurnal Pembelajaran Dan Biologi Nukleus March 2023
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v9i1.3551

Abstract

Lactic acid bacteria (LAB) are a group of bacteria that are naturally present in the digestive tract of vertebrates, including fish such as Channa sp. Lactic acid bacteria are considered the most suitable microbes for use as probiotics. Probiotics can produce antimicrobial metabolites so that can improve the microbial balance in the digestive tract. It is believed that Channa sp. harbors LAB in its digestive tract, which may have probiotic potential and produce antimicrobial metabolites that can inhibit pathogenic bacteria. The aim of this study was to isolate and identify LAB from the intestines of Channa sp. The research involved several steps, including sample preparation, LAB isolation, characterization, and purification of bacterial isolates, biochemical tests, temperature resistance tests, antimicrobial tests, haemolysis tests, lactic acid production tests, and cholesterol-lowering activity tests. Eight LAB isolates with potential probiotic characteristics were isolated and identified as the genus Lactobacillus, which are gram-positive bacteria that produce lactic acid during culture
Bird Diversity in the Freshwater Swamp of Lake Tangkas Ecosystem, Sekernan District, Muaro Jambi Regency Nursanti, Nursanti; Hutasoit, Monica Hazelina; Adriadi, Ade
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 9, No 1: Jurnal Pembelajaran Dan Biologi Nukleus March 2023
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v9i1.3915

Abstract

After Colombia, Peru, and Brazil, Indonesia is the fourth richest country in the world in terms of the number of bird species. Lake Tangkas Nature Tourism is located in two administrative areas, namely Tanjung Terus Village, Sekernan District, Muaro Jambi Regency, and Desa Kaos, Pemayung District, Batanghari Regency, and has an extended form. The region surrounding Tangkas Lake, which is still in its original state, is an ideal habitat for bird species that nest. This study seeks to identify bird species inhabiting freshwater swamp habitats in the Muaro Jambi Tangkas Lake Natural Tourism destination region. This study was conducted in March 2021 at the Lake Tangkas Nature Tourist Area, Tanjung Terus Village, which has 403.11 hectares, Sekernan District, Muaro Jambi Regency. Collecting data on bird species using the point count method. Thirteen observation stations are employed as study locations as counting points. Observations were conducted during peak bird activity, namely in the morning from 6:00 to 10:00 WIB and in the afternoon from 14:00 to 18:00 WIB. According to the results of the study, 36 species of birds from 18 groups (475 individuals) were discovered in the freshwater swamp habitat of Tangkas Lake; the diversity index value is (H'=3.12). The evenness index is 0.87, which places the distribution of bird species in the studied area in the "high" category
The Environment Characteristics Habitat of Sea Tuntong's (Batagur borneoensis) on Conservation Areas in Aceh Tamiang Regency's Coastal Waters Lubis, Adelia Maisyaroh; Jayanthi, Sri; Setyoko, Setyoko; Fitria, Dini; Munte, Aini; Latif, Danu Abian; Junaidi, Muhammad; Muhaiminin, Haikal
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 9, No 1: Jurnal Pembelajaran Dan Biologi Nukleus March 2023
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v9i1.3754

Abstract

One of the endemic turtle conservation areas is the sea turtle conservation area on the coast of Aceh Tamiang Regency, Aceh Province (Batagur borneoensis). This animal is categorized as an endangered animals. The IUCN (International Union for Conservation of Nature and Natural Resources) designated sea turtles as Critically Endangered (CE) in 1996. The distribution of sea turtles is limited because the beach type must be suitable for spawning and survival. The goal of this study was to determine the physical, chemical, and biological characteristics of sea tuntong (Batagur borneonsis) habitat in a conservation area in Aceh Tamiang Regency. In this study, the descriptive method was used. The data collection process was completed. Data was gathered through direct observation in the field. Purposive sampling was used to identify observation stations. There are three research stations: Pusong Kapal (hatching hatchlings), Ujung Tamiang Beach (habitat for adult sea turtles), and Pusung Cium Beach (habitat for sea turtles) (nesting habitat). The study's findings revealed differences in physical, biological, and chemical characteristics at the three stations. It is possible to conclude that the water area off the coast of Aceh Tamiang Regency, Aceh Province, is suitable for sea turtle habitat (Batagur borneoensis)
Isolation, Identification, and Antibacterial Assay of Indigenous Bacterial Isolates from Apis cerana Honeycomb Simbolon, Kristina Br; Mokosuli, Yermia; Lawalata, Helen J
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 9, No 1: Jurnal Pembelajaran Dan Biologi Nukleus March 2023
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v9i1.3441

Abstract

Apis cerana is a honey bee species with a cavity hive known as the eastern honey bee. Honey bee hives have Indigenous bacteria that have antimicrobial potential. Indigenous bacteria are free bacteria that can synthesize nitrogen compounds, sugars, and other bioactive substances. This study aims to isolate, identify and test the antibacterial of Indigenous bacteria isolate Apis cerana against gram-positive Staphylococus aureus and gram-negative bacteria Escherichia coli. This study used a descriptive research method to obtain the data from laboratory experiments. The study consisted of isolating Indigenous bacteria, identifying and testing the antibacterial agar diffusion method. The study results obtained seven isolates of AC 1, AC 2, AC 3, AC 4, AC 5, AC 6, AC 7 Indigenous bacteria from Apis cerana nests. AC 1 isolate has similarities with the genus Streptococcus, AC 2 isolates have similarities with the Klebsiella genus, while AC 3 isolates have similarities with the Bacillus genus, and AC 4, AC 5, AC 6 and AC 7 isolates have similarities with the Citrobacter genus. Indigenous bacterial isolates with potential antibacterial potential where the most significant inhibition against Staphylococus aureus bacteria was shown by isolate AC 1 (10.79 mm). At the same time, the smallest was found in isolate AC 7 (8.52 mm). The most significant inhibition against Escherichia coli bacteria was shown by isolate AC 1 (9.0 mm) while the smallest was found in isolate AC 3 (7.4 mm). Apis cerana nests have indigenous bacteria that have the potential to produce antibacterial substances
Anchovy (the Engraulidae family) and All of the Potential Aspect: A literature Review Samsi, Andi Nur; Akhmad, Nur Amaliah; Marlina, Sitti; Rusmidin, Rusmidin
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 9, No 1: Jurnal Pembelajaran Dan Biologi Nukleus March 2023
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v9i1.3661

Abstract

Anchovies are little pelagic fish that are widely distributed in the ocean. This fish has great potential, therefore it must be nurtured. The classic review is the research approach utilized in the literature review. The Mediterranean Sea, Northwest Africa, Bone Bay, Jepara, Ambon Bay, Morocco's Atlantic Coast, Kayeli Bay, Sri Lanka, India, Malaysia, the Red Sea of Eritrea, and Argentina are inhabited to 172 species of anchovy. The catch size, length, and weight of the fish also vary considerably. Seasonal and environmental variables play a significant effect. In certain areas, the potentials for collecting anchovies can still be expanded while maintaining sustainability. This fish is consumed by the general populace. Comprehensive nutrient profile so that it may be turned into food products (food diversification). Moreover, anchovies include vitamins A, B12, D, and E. Dried anchovies, pepes, tinned anchovies, peanut brittle, fried flour anchovies, cassava/kaoami, biscuits, snacks, chili sauce, infant food additions, and anchovies crispy-sweet are among the several forms of anchovies. By empowering the community, anchovy diversification is accomplished very successfully since it may boost their economic. Anchovy waste may also be converted into fish meal for use as quail feed
In vitro Growth of Cattleya sp Orchid from Leaf Explants with Growth Regulators Harahap, Fauziyah; Hariyadi, Itra; Silitonga, Melva; Suryani, Cicik; Edi, Syahmi; Ningsih, Ayu Putri
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 9, No 1: Jurnal Pembelajaran Dan Biologi Nukleus March 2023
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v9i1.3945

Abstract

Using leaf explants, this research aimed at identifying the type of growth response that can be created and the optimal mix of media for the growth of Cattleya sp orchid. This was an experimental investigation employing the RAL method (completely randomized design) with a combination of 2.4-D (0;1; 2; 3 ppm) and Kinetin  (0;0.3;0.6 ppm) repeated three times. According to the results of this study, the growth regulators 2.4-D and kinetin  were unable to promote the development of all explants. Explants transferred to media containing polyvinylpyrrolidone (PVP) to prevent browning after 12 weeks of observation. Then the results of the study also found the emergence of shoots in the treatment P0 (control), P2 (2,4-D 0 + Kinetin  0.6 ppm), P8 (2,4-D 2 + Kinetin  0.6) and P11 (2.4- D 3 + K 0.6 ppm) in the 3rd week of observation, the appearance of callus at P5 (2.4-D 1 + Kinetin  0.6 ppm) in the 4th week of observation

Page 19 of 44 | Total Record : 437

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