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Journal of Biological Science and Education
Published by USN Scientific Journal
ISSN : 27236838     EISSN : 27210804     DOI : http://dx.doi.org/10.31327/jbse.v4i1.1746
Core Subject : Science, Education,
Biochemistry, Genetics & Molecular Biology Education
The journal receives research, review, report manuscripts on biology, environment, and education. The paper focus on biology study, curriculum, instruction, and assessment on biology, as well as biology teacher training and education, which are highly invited to be submitted in this journal.
Arjuna Subject : Umum - Umum
Articles 106 Documents
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Ectoparasites Identification Of Indigo Red Fish (Oreochromis nilotica) Cultivated In The Center Of The Fish Fry (BBI) Ranomeeto Sunarto, Dedi
Journal of Biological Science and Education Vol 1, No 1 (2019): December
Publisher : Universitas Sembilanbelas November Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/jbse.v1i1.1027

Abstract

Diseases caused by parasitic groups received less serious attention from the farmers because the disease is chronic morbidity and mortality rates and small. However, if observed further, parasitic diseases can lead to secondary infection by bacteria, viruses, and fungi that can cause death and high losses. This study aims to identify the types of ectoparasites red tilapia (Oreochromis nilotica) at Fish Seed Center (BBI) Ranomeeto, South Konawe. This type of method used was observational and sampling was done by using purposive sampling, ie taking into account the characteristics / criteria sample has been determined. These samples included 30 individuals of red tilapia fish taken from BBI Ranomeeto South Konawe. Observations ectoparasites done in Laboratory of Department of Biology at Halu Oleo University . From some of the samples examined Trichodina sp. found to infect the gills, skin and fins. Ichthyophthyrius sp. found on the skin. The dominant type of ectoparasites found is kind Trichodina sp. with a prevalence of 60% and Ichthyophthyrius sp. with a prevalence of 46.67%.   Keywords: Red Tilapia, Ectoparasites, and Organ Infections
The Effect of Mind Mapping Model on The Students of Biology Learning Outcomes of SMAN 12 Maros Amalia, Fitri; Khaeriyah, Khaeriyah; Nur, Rizki Amalia
Journal of Biological Science and Education Vol 3, No 1 (2021): June
Publisher : Universitas Sembilanbelas November Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/jbse.v3i1.1601

Abstract

This research is an experimental study that aims to determine the differences in the learning outcomes of class XI students of SMA Negeri 12 Maros who are taught using the Mind Mapping learning model and the conventional model on the Excretion System Principal Material. The sample in this study were students of class XI MIA 1 and class XI MIA 2 SMA Negeri 12 Maros. The experimental class was taught using a mind mapping model, while the control class was taught using a conventional model. Based on the results of data analysis obtained a sig value of 0.001 0.05, it can be concluded that there is an influence on student learning outcomes using the mind mapping learning model in class XI SMA Negeri 12 Maros.
Analysis of Amilum Containment in Tomat Leaves (Solanum lycopersicum) Based on The Sach Test Sanjayanti, Arum; Putri, Nurul Lia; Adawiyah, Khumairoh; Rammanda Putri, Bella Vista
Journal of Biological Science and Education Vol 6, No 1 (2024): June
Publisher : Universitas Sembilanbelas November Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/jbse.v6i1.2206

Abstract

Photosynthesis is the process of preparing organic substances H2O and CO2 into complex organic compounds that require light. Photosynthesis can only occur in plants that have chlorophyll, a pigment that functions as a catcher of sunlight energy which will later be converted into amylum. Amylum as a complex carbohydrate resulting from photosynthesis, plays an important role in various important physiological processes in the leaves. The purpose of this study was to determine the amylum content in tomato (Solanum lycopersicum) leaves. Qualitative descriptive method was carried out by referring to Sach's method by measuring the starch content of leaves using foil and betadine (Iodine) on tomato leaf samples. The results showed the presence of amylum in tomato leaves that were not covered with aluminum foil after being tested with Iodine solution. This is evidenced by the change in leaf color to blue-black on the surface of the leaves. While in tomato leaves covered with aluminum foil the color of the leaves turns pale and there are only a few blue-black spots, this indicates that leaves that are not exposed to direct sunlight and do not undergo photosynthesis normally have little amylum content in them. Keywords: Amylum, Solanum lycopersicum, Sach Test
Outdoor Learning Methods to Improve Students' Biological Concepts Akmalsyah, Akmalsyah
Journal of Biological Science and Education Vol 2, No 2 (2020): December
Publisher : Universitas Sembilanbelas November Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/jbse.v2i2.1354

Abstract

Outdoor learning is a method in learning and teaching.  With outdoor learning, students can get to know the environment and  biological concepts. The purpose of this study was to determine the increase in students' understanding of the concept of the interaction between living things and the environment in the outdoor learning method. This type of research is a classroom action research (CAR) with two learning cycles.  The subjects of this study were students of class X SMPN 15 Kabaena Utara with 20 students. The data obtained were analyzed using descriptive analysis. The results showed that the students' understanding of the concept of  cycle 1 was 40.95 and cycle 2 was 70.5.  Based on the results of the study, it can be concluded that the outdoor learning method can improve the understanding of biological concepts in class X SMPN 15 Kabaena Utara.Keywords: Outdoor Learning Method, Biological Concept Students
The Effect of Student Team Achievement Division (STAD) on Student Learning Outcomes of SMP Negeri 1 Tinondo Sari, Tri Maniarta; Fitra, Ramad Arya; Rismayanti, Rismayanti
Journal of Biological Science and Education Vol 4, No 2 (2022): December
Publisher : Universitas Sembilanbelas November Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/jbse.v4i2.1877

Abstract

The learning model is very influential on the success of learning. the right learning model can affect learning outcomes in the classroom.  This study aims to determine the effect of the model Student Team Achievement Division (STAD) on the Learning Outcomes of Class VIII Students of SMP Negeri 1 Tinondo. The type of research used in this study is a Quasy Experiment type of research. The total population in this study were 48 students of class VIII at SMP Negeri 1 Tinondo. The sample used in this study consisted of two classes, namely: the experimental class (Class VIII A totaling 24 students), and the control class (Class VIII B totaling 24 students). With the research design Control Group Pretest-Posttest Design.  The instrument used to measure learning achievement tests is an essay test in the form of a pretest and posttest.  The instrument used to measure learning achievement tests is an essay test in the form of a pretest and posttest. data analysis technique using independent sample t-test. The results showed that, After the pretest and posttest were carried out in the experimental class using the STAD learning method, the independent t-test value of the N-gain sample t-test was obtained with the t-count value t-table. Based on the table above, it is known that the t count is 7,926 with a significance of 0.000. The t-table obtained from df = 46 at a significant level of 5% is 2.018. So t-count t-table. So there are differences in student learning outcomes scores in different ways significantly between the experimental class and the control class. Based on the results of the study, it can be concluded that the model Student Team Achievement Division (STAD) learning can affect the learning outcomes of science at SMP Negeri 1 Tinondo. Keywords:  STAD learning model, Student learning outcomes. 
The Implementation Of Cooperative Learning Model Type Jigsaw To Improve The Understanding Of Biological Concept Of Students In Class XI IPA 3 SMA Negeri 5 Kendari Haya, La
Journal of Biological Science and Education Vol 1, No 1 (2019): December
Publisher : Universitas Sembilanbelas November Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/jbse.v1i1.1117

Abstract

This study aims to improve the understanding of biology concepts of students of class XI IPA 3 in SMA Negeri 5 Kendari by applying Jigsaw type cooperative learning models. This research was conducted in the second semester of the academic year 2013/2014. This type of research was a classroom action research (PTK) Kemmis and Taggart with three learning cycles. Each cycle goes through four stages: (1) planning; (2) implementing actions; (3) observation and (4) reflection. The data source of this research was the measurement of students’ worksheets as a test of understanding concepts in cycle I, cycle II and cycle III. The data obtained were analyzed using descriptive analysis. From the results of the study, it was found that students' understanding of biology concepts in the first cycle with a mean of 77.68%; the second cycle was 87.20% and the third cycle was 91.37%. It can be concluded that the implementation of the Jigsaw cooperative learning model can improve the understanding of the biology concepts of students of class XI IPA 3 at SMA Negeri 5 Kendari.  Keywords:  Jigsaw, Conceptual Understanding
The Effectiveness of Addition of Tapioca Flour in Artificial Feed on The Growth of Koi Carp (Cyprinus rubrofuscus) Adzkiyah, Salsabillah Nur; Umami, Muhimatul
Journal of Biological Science and Education Vol 3, No 2 (2021): December
Publisher : Universitas Sembilanbelas November Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/jbse.v3i2.1679

Abstract

Growth is the process of increasing the number of cell protoplasm in an organism accompanied by an increase in size, weight and number of cells that cannot return to their previous state. One of the factors that influence the growth of koi carp is feed. Good feed is feed that can meet the nutritional needs of the koi carp. The addition of tapioca flour in the feed formula, which contains artificial feed, tapioca flour, and water in the koi carp feed, is one of the proper steps because of the increase in carbohydrate doses that can support the growth of the koi carp. This study aims to determine the benefits of adding tapioca flour to the artificial feed of the koi carp (Cyprinus rubrofuscus) and to determine the effect and the most appropriate dose of adding tapioca flour to the artificial diet of the koi carp (Cyprinus rubrofuscus). The research method used is a quantitative research method accompanied by direct observation and analysis of research data, which is also accompanied by a literature study method from previous studies to support the findings in the research results. The results showed that  the more feed formula was given, the faster the growth of the koi carp produced. But must be accompanied by the right dose, which is 8 grams of feed formula once a day. While the benefits of adding tapioca flour in carp feed are increasing carp production, prolonging goldfish life expectancy, increasing efficiency and nutritional content in carp feed, increasing carp appetite accompanied by increased growth. Keywords: Goldfish Koi, Growth, Feed, Carbohydrates, Tapioca Starch
Lentiviral shRNA Construction in Gene Therapy for Knock Down CYPIA1, and YWHAZ gene in Lung Cancer Anjayati, Henik
Journal of Biological Science and Education Vol 3, No 1 (2021): June
Publisher : Universitas Sembilanbelas November Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/jbse.v3i1.1436

Abstract

Lung cancer is a disease that is in the top 10 causes of death globally. It is caused by CYP1A1 and YWHAZ genes expressed in the lungs. One of the solutions offered for lung cancer sufferers is gene therapy. Gene therapy for lung cancer is focused on the knock-down of expressed CYP1A1 and YWHAZ genes. It can be using shRNA transfected into lung cells by lentivirus. The lentivirus envelope is modified using glycoprotein filovirus, one of which is ebolavirus. Lentivirus pseudotyping can recognize certain cells. Especially, Ebolavirus can recognize lung cells. The lentiviral gene is designed to carry the gene of interest (shRNA) but no the infectious gene. The shRNA gene transfused into lung cancer cells will recognize and complement the specific target mRNA sites of the CYP1A1 and YWHAZ genes. After that, shRNA will cut the mRNA which should be expressed into a cancer protein. Unexpressed mRNA into protein causes cancer cell growth inhibited. Thus, this gene therapy solution is expected to be able to reduce the rate of death caused by lung cancer. Keywords: Lung cancer, CYP1A1 and YWHAZ genes, gene therapy, lentiviral, shRNA
The Implementation of Cooperative Learning Model Type Jigsaw to Improve Student Learning Activities in Class XI IPA 3 SMA Negeri 5 Kendari Haya, La
Journal of Biological Science and Education Vol 5, No 1 (2023): June
Publisher : Universitas Sembilanbelas November Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/jbse.v5i1.2038

Abstract

Education is not only measured by theoretical knowledge, but also by practical abilities and interpersonal skills. The low level of student learning activity reflects a mismatch between conventional teaching methods and students' actual needs in developing competencies. This study aims to increase student learning activities in biology class XI IPA 3 SMA Negeri 5 Kendari by applying the Jigsaw cooperative learning model. This research was conducted in the second semester of the 2013/2014 academic year. The type of research used is classroom action research (PTK) Kemmis and Taggart with three learning cycles. Each cycle goes through four stages: (1) planning; (2) carrying out actions; (3) observation and (4) reflection. The source of this research data is the measurement of observation sheets in Cycle I, Cycle II, and Cycle III. The data obtained were analyzed using descriptive analysis. From the observations, it was obtained that student learning activities in cycle I with an average student learning activity in cycle I was 3.31 with a percentage of 82.74%, in cycle II it was 3.48 with a percentage of 86.90%, in cycle III with 3.68 with a percentage of 91.96%. It can be concluded that the application of the Jigsaw cooperative learning model can increase student learning activities in biology class XI IPA 3 SMA Negeri 5 Kendari Keywords: Learning Activities, Jigsaw 
A Study on The Quality of Final Exam Items Made by The Teacher at XII Grade Students of Senior High School in Sidrap Regency Marera, Alone
Journal of Biological Science and Education Vol 2, No 1 (2020): June
Publisher : Universitas Sembilanbelas November Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/jbse.v2i1.1206

Abstract

Bad quality of the questions is one of the factors that can lead to errors in the grading of student learning outcomes. It gives a lower students’ score than the appropriate score and will give an impact on school grades (NS). In this case, school grades (NS) have an effect of 40% in determining the passing of national exams (UN). Therefore, this study was conducted to assess the quality of first semester final exam items made by biology class XII teacher based on some aspects; they are the material, construction, and language. In this study, the researcher used purposive sampling technique in order to collect the data. Items were assessed using a multiple-choice item evaluation sheet which has been declared valid by an expert validator. By combining the material aspects of the assessment data, construction, and language, research results obtained in general show that of the 120 items assessed, there are 104 ( 86,7 %) items with excellent criteria and 16 ( 13,3% ) items with right criteria. Thus, the items made by biology class XII teachers are still suitable for final semester exam of the 2013/2014 academic year Sidrap Regency.

Page 8 of 11 | Total Record : 106

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