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INDONESIA
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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Potential Of Vitamin C And Total Acid As Antioxidants Of Rosella Kombucha With Different Fermentation Times Winandari, Ovi Prasetya; Widiani, Nurhaida; Kamelia, Marlina; Rizki, Erika Puspita
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 8, No 1: Jurnal Pembelajaran Dan Biologi Nukleus Maret 2022
Publisher : 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) Susilowati, Rina Priastini; Sari, Monica Puspa
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 8, No 1: Jurnal Pembelajaran Dan Biologi Nukleus Maret 2022
Publisher : 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 Dalimunthe, Nurzaidah Putri; Priyansah, Sujadi
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 8, No 1: 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.
Exploration Characteristics of Trichomes Shading Plant at Melati Bungur Park Malang City Eko Cahyono; Iin Hindun; Abdulkadir Rahardjanto; Endrik Nurrohman
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 8, No 2 (2022): 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.v8i2.2910

Abstract

Trichomes are structures that cover the surface of plants with hair-like structures and are found in a large number of plants with either unicellular or multicellular forms. Trichomes are one of the important elements in plants, because their presence can be used to identify species based on their appearance, size, type, and content of compounds in them and protect the environment from various kinds of pollutants. Road shade plants are plants planted on the side of the road that function in absorbing pollutants. The purpose of the study was to explore the type, shape, size of trichomes of road shade plants in Malang City. Qualitative descriptive research method. The research was conducted at the Biology Laboratory of the University of Muhammadiyah Malang. The study was conducted in July 2021 using a sample of 4 species of leaf organ plants for the road shade Melati Bungur park Malang City. The results showed that Bauhinia purpurea L found non-glandular trichomes, simple unicellular shape, 159µm long and 13.7µm diameter. Erythrina crista-galli L, a type of non-glandular trichome, simple unicellular form, 240µm long, and 26.9µm in diameter. Tabebuia aurea (Manso) Benth type of non-glandular trichomes, scales, diameter 76.9µm. Two types of trichomes were found in Muntingia calabura L, non-glandular with a star shape, 163µm long, and 5.7µm in diameter. The capitate glandular trichomes are 22µm long and 108µm in diameter, while the peltate trichomes are 15.4µm in diameter.
Utilization of Open Reasoned Multiple Choice Test in Analyzing Misconceptions about The Respiratory System Material for Second Grade (XI Class) of Senior High School Rambe, Sari Putri; 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.v8i2.2839

Abstract

The reason for this study was to dissect understudies misguided judgments by utilizing the Multiple Choice Test  with open reasons and to describe the causes of misconceptions in the respiratory system material for third class (XI) at SMA Negeri 2 Rantau Selatan with a sample of 62 students. This study uses quantitative research with descriptive methods to obtain information and data that can be processed to find out how big the level of misconceptions that occurs in students. The instruments used are multiple choice questions with open reasons and interviews. The data acquired will be introduced as numbers and afterward investigated utilizing by Microsoft Excel 2007, then perform calculations using the formula proposed by Arikunto to determine the level of understudies who figure out ideas, don't grasp ideas and misguided judgments. The results showed that 28.3992% of students understood concepts, 39.086% of students knew concepts, and 32.1505% of students experienced misconceptions on the respiratory system material. Factors causing misconceptions, namely, (1) students experience a lot of lack concentration and lack of interest to reading the material studied during learning, (2) some sub-materials make students still feel confused about the mechanisms of breathing, transport and gas exchange, (3) the teacher's book and students only use by Erlangga publisher package from school provides and, (4) the teaching method of teacher does not routinely carry out practicum, because the condition equipment of laboratory room not support to used
The Influence of Contextual Teaching and Learning (CTL) Models on Student Activities and Learning Outcomes on Plant Seeds Material in First Grade (X Class) Senior High School Anggraini, Tri; 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.v8i2.2868

Abstract

Contextual teaching and learning (CTL) is a learning model that focuses on the contribution of students to have choices in finding the material being studied and linking it to real situations to support students in applying it in their lives. The purpose of this study was to determine the effect of the Contextual Teaching and Learning (CTL) model on the activities and learning outcomes of students in first grade (X class) of Senior High School of SMA Negeri 1 Aek Songsongan with a sample of 69 students. The research approach uses a quantitative approach, with an experimental method with a nonequivalent control group design. Collecting data using pre-test and post-test scores consisting of six cognitive insights according to Bloom's taxonomy, namely aspects of remembering, understanding, applying, analyzing, synthesizing, and evaluating. And data collection also uses observation sheets to see student learning activities. In the instrument, the observation sheet for student learning activities includes six indicators, namely indicators of paying attention, asking and answering, expressing opinions, listening, solving problems, and being enthusiastic in participating in learning. The data obtained will be presented in the form of numbers and then analyzed using SPSS 24. The results of the research indicate that there is a significant effect on student learning activities after being given treatment using the Contextual Teaching and Learning learning model. the average value of student learning activities in the experimental class is good with a percentage value of 85.47% and the average value of student learning activities in the control class is quite good with a percentage value of 71.87%. The results also showed that there was a significant effect on student learning outcomes after being given treatment using the CTL model with the mean value of learning outcomes in the experimental class was 75.18 and the mean value in the control class were 60
The Effect of Mentimeter Learning Media on Students' Learning Outcomes in Biology Learning Nasution, Muhammad Fahmi; Anas, Nirwana
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.v8i2.2791

Abstract

This research is expected to be able to decide whether the use of a mentimeter has an effect on student learning outcomes in learning biology. The population in this research is third Class (XI) of Mipa 1 with a sample of 30 students as the experimental class and third Class XI of Mipa 2 with a sample of 30 students as the control class. The method in this study uses quantitative methods. The data analysis method was tested with normality test, homogeneity test and Mann-Whitney test then tested the hypothesis with the provisions of Ho; There is no influence of the mentometer on the learning outcomes of students in biology learning. Ha; There is an influence of the mentometer on the learning outcomes of students in learning biology. The results of data analysis were obtained from the normality test with a significance value of not up to 0.05 and a homogeneity test with a value of 0.647 which stated that the data were not normally distributed and not homogeneous. The results of the data from the Mann-Whitney test obtained a result of 0.000 where the results obtained were not up to 0.05 (0.000 <0.05) with the conclusion that the hypothesis was accepted that the mentimeter media affected the learning outcomes of students in biology learning. The conclusion of this study states that the meter basically affects student learning outcomes in learning biology.
Characteristics Nesting Ground of Turtle (Lepidochelys olivaceae) in Gampong Gelumpang Sulu Timur Dewantara Sub-district, North Aceh Regency Muliani, Muliani; Erlangga, Erlangga; Mutia, Mutia; Ayuzar, Eva; Mahdaliana, Mahdaliana
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.v8i2.2547

Abstract

One of the reptiles whose natural habitat is in the sea and has the ability to migrate very far is the turtle. Threats that endanger the turtle population, both directly and indirectly, come from natural sources and from human activities. The factors that influence turtle nesting ground were predators, sand grain size, substrate humidity, substrate temperature, beach width, coastal vegetation and beach slope. Humans as one of the predators of the availability of turtles in nature by taking turtle eggs. The aim of the study was to determine the nesting habitat characteristics of the Lekang turtle (Lepidochelys Olivaceae) in the coastal area of Gampong Geulumpang, East Sulu, Dewantara District, North Aceh Regency. This research was carried out in November 2021, which took place on the coast of the village of Gelumpang, East Sulu, Dewantara District, North Aceh Regency. In this study, observational data collection and biophysical measurements were set at 3 stations. Station 1 (Dusun Cot U Sibak), station 2 (Dusun Pasie Kuala), and station 3 (Dusun Teupin). The distance between stations in this study was ± 2 km. Data analysis was carried out by weight body and scoring methods. Based on the results of data analysis from three observation stations at turtle nesting locations from several parameters such as beach slope is 4.5-9.3%, beach width is 10.20 -22 meters, the sand temperature is 29-32 0C, humidity is 21-28%, the size of the sand grains is 0.15322-0.31601 mm, while the coastal vegetation is 16.7-49.4%, it is concluded that the three observation stations are in the very suitable category for turtle nesting locations
The Influence of Learning Outcomes Using the Entrepreneurship-Based of Project Based Learning (PJBL) Model: The Application to the First Grade (X class) of Senior High School Students in Mushroom Material Nurul Jannah; Khairuna Khairuna
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS (JPBN) Vol 8, No 2 (2022): 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.v8i2.2915

Abstract

The project based learning (PJBL) model is defined as an innovative model that is critically multistrategic basically for understudy progress in creating current 21 century abilities. The purpose of the study was to determine the influence of student learning outcomes on mushroom material by applying an entrepreneurship-based learning model (PJBL) first grade (X class) of Senior High School SMA Negeri 1 Aek Songsongan for the 2021/2022 academic year. Type of research with quantitative by True-ekperimental with the from of pre-test post-test control group design. Review test comprised of experimental class X MIA3 and control class X MIA4  selected by cluster random sampling. The research instrument uses diagnostic tests through multiple choice tests and student response questionnaires. Data analysis methods utilizing the assistance of IBM SPSS 24 and Microsoft Excel 2013. The calculation of the hypothesis test results, based on the significance level of α= 0.05 obtained a tcount 6,830 and a ttable value of 1,669. Cause tcount > ttabel, then H0 is dismissed and Ha is acknowledged. Then it can be interpreted by this, is a significant influence of the entrepreneurship based project based learning (PJBL) learning model on the learning outcomes of class X students on Mushroom material. With a typical score got by the control class of 45.15 and experimental class of 62.52 with the achievement of the maximum score of the control class 60 and the experimental class 83.   
Combination of the Certainty of Response Index (CRI) and Multiple Choice Tests to Know the Level Misconception of Student in the Human Reproductive System Material Nasution, Rian Abdillah; Khairuna, Khairuna
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.v8i2.2858

Abstract

The misconception is an error in understanding a concept. Where this misconception shows that there is a difference in the meaning that students understand about a concept that is different from scientific concepts. This study aims to examine the level of misconceptions in the material of the human reproductive system second class-XI of the Senior High School MAN Pematangsiantar which was conducted on April 13-21. This study uses descriptive quantitative methods with diagnostic tests in the form of multiple-choice tests with a combination of Certainty of Response Index and interviews as research instruments by testing to 92 students as samples. The results of this study found that in the reproductive system material, students understand concepts by 54.3%, for misconceptions by 33.9% and for not understand concepts by 11.9%. The highest concept understanding is in the reproductive system disorders material, which is 94.5%, the highest misconception is in the Reproductive System Disorders material at 80.4%, and the highest concept is not understanding the hormone material in menstruation at 25%. Misconceptions that occur due to several things such as lack of learning duration, lack of student interest, boring media and teaching materials, bad study habits. This is the cause of misconceptions at Senior High School of MAN Pematangsiantar so that the overall average is 33.9% which is included in the category of moderate misconceptions.Keywords: CRI, Don't Understand Concepts, Misconception, Human Reproductive System, Understand Concepts

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