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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 19 Documents
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Search results for , issue "Vol 8, No 1 (2022): Jurnal Pembelajaran Dan Biologi Nukleus Maret 2022" : 19 Documents clear
The Effect of Learning Media in Guided Inquiry Model Settings on Students' Science Process Skills in Senior High School of Taman Siswa Pematangsiantar Irwan Lihardo Hulu; Dian Perayanti Sinaga
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 8, No 1 (2022): Jurnal Pembelajaran Dan Biologi Nukleus Maret 2022
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v8i1.2474

Abstract

The use of media in the Guided Inquiry Model setting is an active learning process that uses learning media in teams, guided inquiry activities to develop knowledge, questions to improve critical and analytical thinking skills, problem solving, reporting, metacognition, and individual responsibility. This research was conducted with the aim of knowing the effect of the google classroom learning media in the Guided Inquiry model setting on science process skills in ecosystem material in class X SMA Taman Pematangsiantar students in the 2020/2021 academic year. The population in this study were 140 students consisting of 4 classes. Sampling was done randomly, using cluster random sampling. Data analysis was carried out by determining the normality, homogeneity, validity and reliability tests, and the hypothesis was proven by the t-test. at the significant level = 0.05. From the results of hypothesis testing, it is obtained tcount (tcount = 3.56 > ttable 1.66), so H0 is rejected and Ha is accepted, meaning that there is an influence of the Google classroom learning media in the Guided Inquiry model setting on science process skills in ecosystem material in class X SMA Taman Pematangsiantar students Academic Year 2020/2021. The results of the overall answers from respondents regarding the Google Classroom learning media show that the results of the statement strongly agree at 50.52%, the statement agrees at 40%, and the rest of the students choose the other statement option by 7.48%
Potency of Ketapang (Terminalia catappa L.) Leaves Methanol Extract Against Pathogenic Bacteria of Catfish (Clarias batrachus L.) Risky Hadi Wibowo; Welly Darwis; Sipriyadi Sipriyadi; Reza Wahyuni; Dhea Amelia Sari; Elsi Silvia; Aulia Adriansyah; Aldy Trianda; Redo Setiawan
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 8, No 1 (2022): Jurnal Pembelajaran Dan Biologi Nukleus Maret 2022
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v8i1.2475

Abstract

Ikan lele (Clarias batrachus L.) merupakan salah satu spesies penting sebagai komoditas air tawar di Indonesia dengan produksi yang terus meningkat setiap tahunnya. Namun, ikan lele rentan terhadap beberapa infeksi bakteri, terutama bila dipelihara dalam kondisi kepadatan tinggi, salah satunya oleh bakteri patogen Bacillus cereus. Banyak sumber bahan baku lokal yang dapat dimanfaatkan sebagai pakan ikan untuk mengatasi masalah tersebut dan mengatasi penyakit yang muncul pada budidaya ikan, salah satunya adalah tanaman tradisional ketapang (Terminalia catappa L.) yang merupakan tanaman yang memiliki potensi sebagai zat antibakteri. Tujuan penelitian ini untuk mengetahui dan menguji aktivitas antibakteri ekstrak daun ketapang (T. catappa L.) terhadap bakteri patogen B. cereus dari isolat hati ikan lele (Clarias batrachus L.) penyebab penyakit pada budidaya. Metode yang digunakan yaitu maserasi dengan pelarut metanol perbandingan 1:10 yang dimaserasi 7 x 24 jam. Uji aktivitas antibakteri dengan metode cakram difusi dengan konsentrasi 45%, 52,5%, 60%, 67,5%, dan 75%. Hasil uji aktivitas antibakteri ekstrak daun ketapang mampu menghambat pertumbuhan bakteri B. cereus pada konsentrasi 45% dengan rata-rata diameter zona hambat sebesar 13,51 mm (kategori kuat). Dari hasil yang diperoleh, dapat disimpulkan bahwa ekstrak daun ketapang memiliki kemampuan dalam menghambat pertumbuhan bakteri patogen B. cereus  penyebab penyakit pada hati ikan lele (C. batrachus L.)
Application of Decision-Making Models to Improving the Critical Thinking Ability of High School Students on Biology Materials Mayarni Mayarni; Tiara Anggraini; Gufron Amirullah; Susanti Murwitaningsih
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 8, No 1 (2022): Jurnal Pembelajaran Dan Biologi Nukleus Maret 2022
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v8i1.2495

Abstract

The purpose of this research was to see the influence of learning and examples of decision making on improving the critical thinking skills of first grade students (X) on material change and environmental conservation in  Bekasi High School. Researchers used the Quasy Experiment method with PrePost Control Group Design. The population in the study were first grade students (X MIPA 3) and (X MIPA 4) with the number of students were 35 and 34 students respectively. The technique for sampling was random cluster sampling. The exploration tool used is a 10-point skill test that integrates with indicators of critical thinking abilities or skills. Based on the results of the study, the average value of critical thinking skills or skills in the experimental group (=59.74) was higher than in the control group (=46.08). T-test (3.82) and t-table (2.97) were obtained when the hypothesis was tested using t-tests with a significance level of 1% and learning models such as decision making on improving the critical thinking skills of first grade students on environmental conservation materials at SMA Negeri Bekasi.
New Zealand Rabbit Spermatozoa Concentration after Giving of Beluntas Leaf Tannin Extract (Pluchea indica) Eko Susetyarini; Endrik Nurrohman
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 8, No 1 (2022): Jurnal Pembelajaran Dan Biologi Nukleus Maret 2022
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v8i1.2473

Abstract

The purpose of this study was to determine the concentration of spermatozoa in New Zealand rabbits after giving of various types of beluntas leaf tannin extract. This type of research is experimental research. The research design is a one-group post-test design. A sample of 16 rabbits. The sampling technique used is purposive random sampling. The research was conducted at the Chemical Engineering Laboratory of the State Polytechnic of Malang, the Laboratory of Kesimma Medica Malang, the Integrated Laboratory, and the Biology Laboratory of the University of Muhammadiyah Malang. The study was carried out from August to September 2019. The study design used a completely randomized design (CRD) with 4 treatments, namely hydrolyzed, condensed, and pure tannin extract of beluntas leaves and the control group was given aquades orally with a dose of 3 ml/kgbb with 4 replications. repetition times. The procedure of this research 1) Preparation of extract of beluntas leaf tannins, 2) Phytochemical test of extract preparations, 3) Treatment of rabbits as experimental animals, 4) Surgery and collection of rabbit spermatozoa, 5) Observation of spermatozoa using a microscope, 6) Calculating the concentration of spermatozoa. The method of data collection was by calculating the concentration of spermatozoa in each treatment using a hemocytometer and a Neubauer counting chamber using a binocular microscope. Data analysis with one-way Anova test and Duncan 5%. The results showed that the dosage of 3ml/kgbb of various types of beluntas leaf tannin extract had an effect on the spermatozoa concentration of New Zealand rabbits (sig<0.05). The findings of this study are that the best treatment that can reduce the number of spermatozoa in New Zealand rabbits is the condensed tannin extract of Beluntas leaves.
The Effect of the Use of Audio Visual Media on Student Biology Learning Outcomes in The Covid-19 Pandemic Era Thiur Dianti Siboro; Sumarny Tridelpina Purba
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 8, No 1 (2022): Jurnal Pembelajaran Dan Biologi Nukleus Maret 2022
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v8i1.2482

Abstract

This research was conducted with the aim of knowing the effect of using audio-visual media on student biology learning outcomes in the covid-19 pandemic era. The approach used in this research is quantitative with the design of One Group Pretest Posttest. The sample of this study was 64 students who were taken by means of Cluster Random Sampling. The data collection technique used was in the form of a learning outcome test consisting of a pretest-posttest and a questionnaire to determine the use of audio-visual media. Based on the results of the study, the average pre-test score for the experimental class was 45.31 and the average pre-test score for the control class was 47.18. The average number of post-test scores for the experimental class was 88.12. The average number of post test scores for the Control class was 86.09. When compared to the average post-test scores for the experimental class, it was greater than the learning outcomes of the control class students. Based on the results of hypothesis testing using the t test, it was obtained that tcount (2.22) > ttable (2.00) at the significance level α=0.05 then Ho was rejected and Ha was accepted, meaning that there was a significant effect on student learning outcomes using audiovisual media in the covid pandemic-19 era.
Relationship between Blood Sugar Levels and People's Consumption Patterns of Bandar Lampung Dwijowati Asih Saputri; Aulia Novitasari
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 8, No 1 (2022): Jurnal Pembelajaran Dan Biologi Nukleus Maret 2022
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v8i1.2470

Abstract

Blood sugar is important for the body, unstable blood sugar can cause low blood sugar levels (hypoglycemia) or high blood sugar levels (hyperglycemia) which is one sign of diabetes mellitus. The wrong consumption pattern, malnutrition, or obesity (overweight) can cause the risk of diabetes mellitus, poor nutrition can damage the pancreas, while excess obesity can interfere with the work of the insulin hormone. The purpose of this research is to determine the relationship between blood sugar levels and consumption patterns of people in Bandar Lampung City. This research method is quantitative with cross sectional design. The research was conducted in 20 sub-districts in Bandar Lampung City, with a sampling technique that is stratified random sampling. The data collection technique was carried out by taking blood samples for checking blood sugar levels followed by filling out the consumption pattern questionnaire by the respondents.
Potential Of Vitamin C And Total Acid As Antioxidants Of Rosella Kombucha With Different Fermentation Times Ovi Prasetya Winandari; Nurhaida Widiani; Marlina Kamelia; Erika Puspita Rizki
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 8, No 1 (2022): Jurnal Pembelajaran Dan Biologi Nukleus Maret 2022
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v8i1.2471

Abstract

Germplasm which is abundant in Indonesia, 23% of which are medicinal plants. One of the medicinal plants is rosella because it contains various compounds that are proven to be natural antioxidants, anticancer, antihypertensive, laxative, and natural antidiuretic. Herbal medicines are often consumed as functional drinks. Rosella can be processed into functional drinks, one of which is kombucha. The length of fermentation of kombucha can affect the content in it. This type of research is descriptive quantitative. The treatments given were 3, 6, 9, and 12 days of fermentation. Parameters measured included vitamin C content, total lactic acid, antioxidant activity, total microbes, and pH. The results showed that the highest vitamin C content was 0.0528 mg/mL on days 3 and 6, the highest total lactic acid was 1.7250% on day 12, the best antioxidant activity was on day 9 with a very strong category, the highest total bacteria was 5.96x107 CFU/mL on day 12 12th, the highest total yeast 11.54x106 Log CFU/mL on the 6th day, the highest pH of 2.70 on the 3rd day.Keywords: kombucha, rosella, vitamin C, antioxidant
Histopathological Changes of Midgut Epithelial Cells of Aedes aegypti Larvae Exposed to Permot Leaf Extract (Passiflora foetida) Rina Priastini Susilowati; Monica Puspa Sari
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 8, No 1 (2022): Jurnal Pembelajaran Dan Biologi Nukleus Maret 2022
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v8i1.2465

Abstract

The Aedes aegypti mosquito is the main vector of dengue hemorrhagic fever (DHF). Various prevention efforts were carried out to reduce the population of Ae. aegypti. One way to break the chain of Ae. aegypti is to kill the development of its larvae, namely with synthetic or vegetable larvicides. Permot (Passiflora foetida) is one type of plant that can be used as a vegetable insecticide because it contains active chemical compounds such as alkaloids and flavonoids. Larvae of Ae. aegypti used was instar III with a total of 600, which was divided into 6 treatment groups (1 negative control group, 1 positive control group using 1% temephos, permot leaf extract with dose levels of 0.5%, 1%, 2% and 4% ) and 4 replicates. Data on mortality of Ae. aegypti was calculated to determine the effective dose (LC50 and LC90) using the Probit test, while histopathological changes were calculated to determine the toxicity of the permot leaf extract using the one-way Anova test. The results showed that the LC50 value was 1.85% and LC90 was 2.35%, which means that the effective dose of permot leaf extract was 2.35%. In the treatment of 4% permot leaf extract, it showed histopathological changes in the midgut epithelial cells of Ae. aegypti larvae, midgut epithelial cells became lysed, changed shape, cytoplasmic vacuolization, and separated from the basement membrane. Peritrophic membranes, microvilli and brush border were partially or totally damaged. 
Perception of Bangka Belitung Citizen About Primate Conservation Effort Nurzaidah Putri Dalimunthe; Sujadi Priyansah
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 8, No 1 (2022): Jurnal Pembelajaran Dan Biologi Nukleus Maret 2022
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v8i1.2451

Abstract

The primate species of Bangka Belitung such as Mentilin are categorized as endangered species and are constantly under threat as a result of poaching and habitat destruction. Various conservation efforts have been carried out, one of which is by touching the aspect of public education. However, there has been no specific research on the community's response to primate conservation in Bangka Island. This study aimed to determine the level of public knowledge of primates typical of Bangka Belitung and to determine public perceptions of conservation efforts for primates typical of Bangka Belitung. The research method was carried out by surveying respondents from five different villages in Bangka Island, namely Zed Village, Kemuja, Payabenua, Petaling and Terak Village. The questionnaire consists of three main aspects, namely knowledge, perception and concern for the conservation of primates. In general, the response of the people of Bangka Island to the topic of primate conservation, both in terms of knowledge, perception were relatively low. However, as this was a preliminary study, it is important to explore the reasons behind the responses given in this survey. This will certainly be very useful to be taken into consideration for the primate conservation program that will be carried out by related parties.

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