Indonesian Journal of Biology Education
Indonesian Journal of Biology Education is a journal managed by Biology Education Study Program, Faculty of Education and Teacher Training, Universitas Tidar. Published articles have been reviewed through a double-blinded review process. This journal is published twice a year, in April and October. This journal publishes scientific articles which are research or review articles in the field of Biology and Biology Education.
Articles
61 Documents
<![CDATA[Isolation and Characterization of Endophytic Bacteria in Ciplukan Plant (Physalis angulata) ]]>
<![CDATA[Annisa Wulan Agus Utami]]>;
<![CDATA[Munarti Munarti]]>
<![CDATA[ Indonesian Journal of Biology Education Vol 3, No 1 (2020): INDONESIAN JOURNAL OF BIOLOGY EDUCATION ]]>
Publisher : <![CDATA[Universitas Tidar ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
Full PDF (209.737 KB)
|
DOI: 10.31002/ijobe.v3i1.2293
<![CDATA[Biodiversity of endophytic bacteria is a potential biological resource to be applied in various fields, especially in the medical field. Endophytic bacteria are bacteria that live in the host plant tissues which belongs to a symbiosis of mutualism. Ciplukan plant (Physalis angulata) is a herbal plant that is useful as antihyperglycemic, antimicrobe, immunostimulant, anti-inflammatory, antioxidant, and cytotoxic. Active compounds obtained from plants need a more complicated time and process compared to extracting compounds from bacteria. The study aims to obtain isolates and characterization of endophytic bacteria in Ciplukan plant (Physalis angulata). The method that is used is the isolation of microbe by Nutrient Agar (NA), and morphological characterization with a gram staining technique. The result of isolation of endophytic bacteria in Ciplukan plant (Physalis angulata) obtains the data which the highest mean is in the rhizosphere part that is 13.13 x 106. Isolation of a single colony of endophytic bacteria obtains 20 bacterial isolates which are 12 bacterial isolates of Gram-positive and 8 bacterial isolates of Gram-negative. The result of isolation of a single colony obtains 1 bacterial isolate of endophytic root (AC2) that has characteristic as Actinobacteria which has a form of spherical spore of colony and Gram-positive. Actinobacteria colonies grow by attached to the surface of the media and can produce spores such as powder. Metabolite compounds produced by Actinobacteria have the role of inhibiting the growth of bacteria and fungi. Furthermore, the metabolites produced by Actinomycetes are widely developed as medicinal materials that can cope with various diseases.]]>
<![CDATA[Relationship Between Self-Esteem and Negative Emotional State with Academic Procrastination in Final Level Students ]]>
<![CDATA[Refirman Djamahar]]>;
<![CDATA[Yulilina Retno Dewahrani]]>;
<![CDATA[Resty Octaviani]]>
<![CDATA[ Indonesian Journal of Biology Education Vol 3, No 1 (2020): INDONESIAN JOURNAL OF BIOLOGY EDUCATION ]]>
Publisher : <![CDATA[Universitas Tidar ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
Full PDF (327.399 KB)
|
DOI: 10.31002/ijobe.v3i1.2290
<![CDATA[Self-esteem and negative emotional state have a role in the tendency of students to do academic procrastination in completing the final assignments. This study aims to determine the relationship between self-esteem and negative emotional state with academic procrastination in last year's students — the research conducted at the Biology Education and Biology Department, Jakarta State University, in July 2019. The method used was descriptive correlational. The research sample was 48 Biology students from 2012, 2013, and 2014 who had not graduated on time selected by simple random sampling. The instruments used were the Coopersmith Self Esteem Inventory (CSEI), Depression Anxiety Stress Scale 42 (DASS 42), and academic procrastination questionnaires. The analysis prerequisite test results obtained by data distribution normally and homogeneously. The result is a significant relationship between self-esteem and negative emotional states with academic procrastination in final year college students.]]>
<![CDATA[Development of Cyberlink Power Director Based Learning Media in the Material of Human Digestive System ]]>
<![CDATA[Mulyani Rahayu]]>
<![CDATA[ Indonesian Journal of Biology Education Vol 3, No 1 (2020): INDONESIAN JOURNAL OF BIOLOGY EDUCATION ]]>
Publisher : <![CDATA[Universitas Tidar ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
Full PDF (421.893 KB)
|
DOI: 10.31002/ijobe.v3i1.2294
<![CDATA[The need for developing Cyberlink Power Director learning media based on poetries and songs for students and teacher includes the need of videos that can be seen, heard well, and can be used repeatedly according to particular time and place. Moreover, the presentation of information can be understood clearly, can contain the contents of the material systematically and comprehensively, can improve students’ learning outcomes, and can investigate the effectiveness of this media for science subject in the material about digestive in human for the fifth graders of MI Muhammadiyah Donorejo, Secang District, Magelang Regency. This research is an R&D (Research and Development) using the ADDIE step. The Technique of data analysis uses the quantitative descriptive technique. The type of instrument used was a questionnaire filled out before and after implementation. The result of this study shows that the Cyberlink Power Director based on poetries and song is proven to be valid by expert, and also effective in improving students’ learning outcomes in science subject in the material about digestive components in human (paired-sample t test, p = 0.00 <0.05).]]>
<![CDATA[Argumentation Study of College Students Who Are Smokers ]]>
<![CDATA[Setiyo Prajoko]]>
<![CDATA[ Indonesian Journal of Biology Education Vol 3, No 1 (2020): INDONESIAN JOURNAL OF BIOLOGY EDUCATION ]]>
Publisher : <![CDATA[Universitas Tidar ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
Full PDF (300.628 KB)
|
DOI: 10.31002/ijobe.v3i1.2345
<![CDATA[This study aims to examine the arguments of college students who are smokers at Universitas Tidar (Tidar University). The research method used in this study is a survey method with two instruments which are interview and questionnaire conducted in December 2019. The data is analyzed by using descriptive qualitative method. The respondents in this study are 15 college students from some faculties in Universitas Tidar. Based on the result of interview and questionnaire, it shows that in the campus environment, there are some students who know the rules about the prohibition of smoking in the campus environment especially Universitas Tidar. In fact, a research about the argumentation study of college students who are smokers shows that there are still some students who smoke in the campus environment. Moreover, 67% of the college students are not ashamed when the lecturers see them smoking. In addition, the results obtained as much as 100% of respondents know about the negative effects of smoking. However, there are only 67% of respondents who just have the desire to stop smoking and it even has not been realized. They are still smoking with the reason that they still feel the advantages or positive effects of smoking for them. As the example, smoking can increase their morale and reduce stress. They also have not felt the negative effects on their health conditions such as breathless and current finances.]]>
<![CDATA[Molecular Identification of Two Rare Actinomycetes Isolated from Mosul, Iraq ]]>
<![CDATA[Talal Sabhan Salih]]>
<![CDATA[ Indonesian Journal of Biology Education Vol 3, No 1 (2020): INDONESIAN JOURNAL OF BIOLOGY EDUCATION ]]>
Publisher : <![CDATA[Universitas Tidar ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
Full PDF (344.863 KB)
|
DOI: 10.31002/ijobe.v3i1.2420
<![CDATA[Rare actinomycetes from diverse habitats are continued to be isolated and screened for their novel bioactive compounds. The present study aims to molecular, morphological and physiological characterisation of two rare actinomycetes isolated from an Iraqi soil. Based on the 16S rRNA gene sequencing, the two isolates were categorized into two different rare genera Actinoplanes and Amycolatopsis that were designated as Actinoplanes sp. MOSUL and Amycolatopsis sp. MOSUL respectively. Phylogenetic trees analyses revealed that Act. sp. MOSUL was closely related strain to Act. xinjiangensis (jgi.1107663; identity 96.75%) and Act. lobatus (AB037006; identity 96.76%), and Amy. sp. MOSUL was most related to Amy. bullii (HQ65173099; identity 99.71%) and Amy. tolypomycina (FNSO01000004; identity 99.26%). The two rare isolates had different morphological properties when grown on International Streptomyces Project (ISP) media, and different physiological and biochemical patterns when grown on Minimal Medium (MM) agar alone or supplemented with different carbon or chemical sources. The ribosomal 16S gene sequences of both Act. sp. MOSUL and Amy. sp. MOSUL strains were submitted to the National Center for Biotechnology Information (NCBI) and deposited in the GenBank database under the accession numbers MN095717 and MN095769 respectively.]]>
<![CDATA[Development of Plant Biosystematics E-Module Based on Problem Solving ]]>
<![CDATA[Sekar Jati Pamungkas]]>;
<![CDATA[Wike Oktasari]]>
<![CDATA[ Indonesian Journal of Biology Education Vol 3, No 2 (2020): INDONESIAN JOURNAL OF BIOLOGY EDUCATION ]]>
Publisher : <![CDATA[Universitas Tidar ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
Full PDF (318.635 KB)
|
DOI: 10.31002/ijobe.v3i2.3523
<![CDATA[This study aims to describe the stages of developing the Plant Biosystematics e-module with the 4-D model (four D model) and to analyze the effectiveness of the resulting Plant Biosystematics e-module in improving problem solving skills in students of the Tidar University Biology Education Study Program. The Plant Biosystematics course studies the description, adaptation, and classification of plants, both high and low levels. The research method used is the R&D Model. This model consists of 4 development stages, namely Define, Design, Develop, and Disseminate. The object of this research was 60 students of Tidar University Biology Education. The research instrument used was in the form of questionnaires and validation sheets by the validator. Based on data on Problem Solving skills 38, 3% chose the number 5 meaning that in this Plant Biosystematics e-module all 5 indicators have been fulfilled. Based on the development of the e-module by the validator, the results of the material were 80.5%, the presentation aspect was 54%, the linguistic aspect was 24%, and the graphic aspect was 34%. Based on the data above, the development of the Plant Biosystematics e-module can be used as a learning module that can improve their problem solving skills.]]>
<![CDATA[Developing Interactive Media Based On Flash For Competency Student (cognitive domain) in Bloodstream System ]]>
<![CDATA[Dicky Halin Wijana Ashidiq]]>;
<![CDATA[Rizhal Hendi Ristanto]]>;
<![CDATA[Mieke Miarsyah]]>
<![CDATA[ Indonesian Journal of Biology Education Vol 3, No 2 (2020): INDONESIAN JOURNAL OF BIOLOGY EDUCATION ]]>
Publisher : <![CDATA[Universitas Tidar ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
Full PDF (509.841 KB)
|
DOI: 10.31002/ijobe.v3i2.3525
<![CDATA[Misconceptions are often experienced by the students of senior high school. Especially on the learning material of circulatory system. The aim of this study is to develop Biology instructional media in the form of Adobe Flash-based interactive instructional media on the learning material of Circulatory System which the content is designed to improve the students’ competencies. The development of this instructional media uses the RnD method with the Borg and Gall development model. There are 3 validators consisting of 2 Biology material experts and 1 instructional media expert who will test and validate the media that is developed. The study to test the effectiveness of the media is a before-after experimental design. The validation of media done by material and media experts shows the result that is categorized as very good, and the result of statistical test with paired sample t-test shows a significance value of 0.00 < 0.05. This means that there is a significant difference in the average score of students from before and after using Adobe Flash-based interactive instructional media to improve students’ competencies. Thus, the Adobe Flash-Based Interactive instructional media can improve the competencies of students.]]>
<![CDATA[Genetic Material Upgrading: Misconception Identification Study in High School Biology Teachers ]]>
<![CDATA[Ika Sukmawati]]>;
<![CDATA[Karunia Galih Permadani]]>
<![CDATA[ Indonesian Journal of Biology Education Vol 3, No 2 (2020): INDONESIAN JOURNAL OF BIOLOGY EDUCATION ]]>
Publisher : <![CDATA[Universitas Tidar ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
Full PDF (357.699 KB)
|
DOI: 10.31002/ijobe.v3i2.3201
<![CDATA[This study aims to identify and map patterns of genetic misconceptions in high school biology teachers. This research was conducted in several stages, including the development of diagnostic test instrument with Certainty of Response Index (CRI). The instrument used in measuring misconceptions in this study is a three-tier test diagnostic instrument. There are 20 questions covering Basic Competencies 3.3, 3.5, 3.6, 3.7, and 3.8. The cognitive level of the questions covers C2 to C5 in Bloom Taxonomy. The validator's assessment shows that the instrument is suitable for data collection. The results of data collection indicate that the topics identified as having misconceptions among high school teachers are quite high (above 50%), among others: (1) The relationship between DNA, genes, and chromosomes; (2) Chromosome structure of eukaryotic cells; (3) The process of protein synthesis (transcription, translation, and genetic code); (4) Mendel Law 1; (5) Mendel Law 2; (6) Crossing-Over, Sex-Linkage, and Non-Disjunction; and (7) Causes of Mutations. Apart from misconception data, this study also reveals the experiences of teachers in conducting Biology teaching and learning activities, especially related to Genetics in high school.]]>
<![CDATA[Measurement of alpha-Amilase Enzymes in Bacillus subtilis Bacteria ]]>
<![CDATA[Sukmawati Sukmawati]]>;
<![CDATA[Melda Yunita]]>;
<![CDATA[Febrianti Rosalina]]>
<![CDATA[ Indonesian Journal of Biology Education Vol 3, No 2 (2020): INDONESIAN JOURNAL OF BIOLOGY EDUCATION ]]>
Publisher : <![CDATA[Universitas Tidar ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
Full PDF (355.601 KB)
|
DOI: 10.31002/ijobe.v3i2.3237
<![CDATA[The bacterium Bacillus subtilis is able to produce amylase enzymes which are able to hydrolyze various types of starch sources into simple compounds such as maltose, glucose. Amylase converts carbohydrates which are polysaccharides into maltose. Amylase enzyme is a group of enzymes that are needed in the industrial field. The purpose of this study was to determine the level of the amylase enzyme produced by the bacterium Bacillus subtilis. The method used in this research is a quantitative method using an amylase enzyme measurement experiment. The results of this study are from two types of enzyme sources, namely Bacillus subtilis + Starch + NB and Bacillus subtilis + NB. Both samples showed enzyme activity. The conclusion of this study is that Bacillus subtilis + Starch + NB produces 63.186 units of the alpha-amylase enzyme used to produce 1 ppm / 1 micromol maltose per minute. Whereas the Bacillus subtilis + NB sample was 19.474 units of the alpha-amylase enzyme used to produce 1 ppm / 1 micromol maltose per minute.]]>
<![CDATA[21st-Century Learning: Development of Respiradroid Media (Respiration Concept) For High School Students ]]>
<![CDATA[Nurhalimah Nurhalimah]]>;
<![CDATA[Elsa Lisanti]]>;
<![CDATA[Rizhal Hendi Ristanto]]>
<![CDATA[ Indonesian Journal of Biology Education Vol 3, No 2 (2020): INDONESIAN JOURNAL OF BIOLOGY EDUCATION ]]>
Publisher : <![CDATA[Universitas Tidar ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
Full PDF (472.597 KB)
|
DOI: 10.31002/ijobe.v3i2.3238
<![CDATA[This research is a research development that aims to develop biology learning media in the form of an android learning application. This study uses research and development (R&D) with a method developed by Thiagarajan, namely the 4D model with stages: define, design, develop and disseminate, the stages of this study are limited to the development stage. Products that have been developed are then validated by experts in their fields. The results showed that respiradroid learning media had an average of 3, 31 in aspects of learning media. The validation results obtained from media and material experts prove that respiradroid media developed are suitable for use in the learning process. Media respiradroid learning has the advantage that is, a learning media that is flexible means that it can be used anywhere, easy to install, easy to find material content with student stimulus for thinking. It is expected to improve students' higher-order thinking skills in the concept of respiration.]]>
