JPBIO (Jurnal Pendidikan Biologi)

The urgency of developing augmented reality-based biology learning media on genetic substance material

Eka Putri Azrai — 2024-04-30

The implementation of biology learning in the field encounters numerous challenges. Specifically on genetic substance material, students experience learning difficulties due to abstract, interdisciplinary concepts and difficulties in understanding textbooks. This problem can be overcome one way by using learning media. Under current learning demands, technology-based media is appropriate to use. Augmented Reality (AR) based media is one option. The accessibility of augmented reality-based media remains limited, especially for genetic substance material, despite the necessity for media capable of visualizing its complex and abstract characteristics. The results of the needs analysis for teachers and students also show that AR-based media is needed in genetic substance learning. The use of AR media is very possible because of the support of adequate infrastructure. Teachers and students also expressed their willingness to use AR media in learning. Based on the research results, it can be concluded that AR-based biology learning media on Genetic Substance material is urgent to be developed. This media will be able to enrich the variety of biology learning media and become one of the solutions to overcome problems in biology learning, especially genetic substance material.

Improving problem-solving ability and collaboration skills of ecosystem material through STEM integrated project-based learning

Teza Lestari Ningrum — 2024-04-30

The learning process at Cipasung Islamic High School is still teacher-centered so the formation of 21st century skills in students is still neglected. The purpose of this study was to determine the effect of the STEM-integrated project-based learning model on the problem-solving ability and collaboration skills of students on ecosystem material. This research was conducted in May 2023. The research method used is an experimental method with a Quasi Experiment design and the matching-only posttest-only control group design form. The research population was the X MIPA class of Cipasung Islamic High School in the 2022/2023 school year. The sample was taken using a purposive sampling technique and obtained X MIPA 1 class as the control class and X MIPA 4 as the experimental class. The research instruments used in this study consisted of 3 validated instruments, namely the problem-solving ability test instrument, the CSAT (Collaboration Self-Assessment Tool) questionnaire, and the collaboration skills observation sheet. The data analysis technique used is One way ANOVA test. Based on the results of the analysis, it can be concluded that there is an effect of STEM integrated project-based learning model on problem-solving ability and collaboration skills of students on ecosystem material in Class X MIPA SMA Islam Cipasung.

In silico analysis: Activity of active compounds in passiflora foetida to diabetes

Khadizah Soendoess — 2024-04-30

Plants contain good compounds that are simple to complex including medicinal plants. Herbs are all plant species that are around settlements, cultivated, wild plants that are known to have medicinal properties. An example is the rambusa plant (Passiflora foetida L.). Rambusa leaves are efficacious in relieving fever, insomnia, colds, headaches, diabetes, and asthma. The purpose of this study is to find out physicochemical & pharmacokinetic predictions, toxicity levels, and the affinity of active compounds and a comparison of toxicity levels and affinity of rambusa plants or Passiflora foetida L. with metformin. The method used in this study is qualitative descriptive. Molecular docking with in silicoÂ approach between active compound Passiflora foetida L. with target protein Alpha-glucosidase subunit B to inhibit blood sugar levels (diabetes). The compound that has the best pharmacokinetic profile compared to metformin is Passifloricin A. 5-Hydroxy-7,4'-dimethoxyflavone, Deidaclin, Linamarin, Volkenin, (1S,4S)-Tetraphyllin B (S)-Tetraphyllin A and Passifloricin A compounds are relatively safer, not mutagen and not toxic to the liver, except Passifloricin A is toxic to the liver, because the compound has a safer level of toxicity compared to the comparison medicine, metformin.

The use of alternative coloring variations to mitotic observations of shallots using the squash method

Ni Luh Tirtasari — 2024-04-30

Practicum cannot be carried out due to limited facilities and infrastructure such as dyes for observation of mitotic cell chromosomes in onions. Alternative dyes that can be obtained from nature can be explored. The purpose of this study was to obtain preparation of the mitotic division process in various onion root cells using alternative dyes using dyes from dragon fruit peel and turi flower. In obtaining the right preparation using the squash method. Data were obtained using observation sheets that observed each variation of the material. The instrument used in this study is a valid observation sheet. The results showed that the coloring of the preparation using dragon fruit skin and turi flowers was successful and clear coloring results were obtained. Coloring in practicum activities using turi flowers is better than dragon fruit coloring. Natural dyes from dragon fruit peel and turi flower can be used as alternative dyes in the squash method to observe onion root mitosis, replacing synthetic dyes.Â

Exploration of mosses in urban-bogor habitats: Species identification, diversity and uniformity

Rizhal Hendi Ristanto — 2024-04-30

This research focuses on the exploration of moss in the Bogor urban habitat, to explore the identification of moss types, measuring the level of diversity, and assessing the level of uniformity in the context of the urban environment. Data collection at the research location was divided into 3 stations with different environmental parameters. The method used in this research was an exploratory survey using the belt transect technique. The sampling method is purposive sampling with the help of a quadratic plot. The results of this research found 20 moss species identified on the green belt of Jalan Pajajaran, Bogor with a diversity index for the three stations respectively, namely 2.45; 2.02; and 1.78 which is classified into the medium category, and the uniformity index for the three stations respectively is 0.835; 0.814; 0.811 which is classified as high. These results show that the moss found can live by adapting to environmental factors in urban areas such as fluctuating temperature, humidity, and light intensity.

Moringa oleifera gum effect on blood sugar levels and rat pancreas histology induced by Streptozotocin

Eva Tyas Utami — 2024-04-30

Moringa gum is a product that people can use as an anti-hyperglycemic agent. This study aimed to determine the effectiveness of Moringa gum in reducing blood sugar levels and improving the histology structure of the rat pancreas induced by streptozotocin (STZ). This study used 21 male rats divided into 3 groups including control, diabetes (STZ), and diabetes (STZ + 3% Moringa gum). STZ treatment at a single dose (45 mg/kg BW) was given intraperitoneally, while Moringa gum was given through drinking water for 2 weeks. Blood sugar levels were measured on days 0, 7^th, 14^th, 21^st, and 28^th. The results showed thatÂ STZ administration induced diabetes in rats with blood sugar levels of 487 mg/dL on the 14^th day.Â Moringa gum administration was able to reduce blood sugar levels on days 21^st and 28^th respectively to 306 and 234 mg/dl. The histology structure of the pancreas of rats treated with gum also showed improvement. This study concludes that Moringa gum is effective in lowering blood sugar levels in rats even though it still does not show normal blood sugar levels, and can repair STZ-induced damage to the histology structure of the rat pancreas.

Antibacterial activity in vitro investigation of eucheuma cottonii extract from aru islands against pathogenic bacteria

Melda Yunita — 2024-04-30

Red algae Eucheuma cottonii is one of the potential marine biodiversity that provides added value in the pharmaceutical and cosmetic fields and is known to have antibacterial compounds. Research focusing on the potential of E. cottonii as an antibacterial is still limited, particularly when it comes to the Aru Islands. This study aimed to measure the antibacterial activity of E. cottonii against pathogenic bacteria including E. coli and S. aereus at several concentrations and to determine the best concentration for inhibiting these two pathogenic bacteria. The study was true experimental laboratory research with a post-test-only controlled group design. Antibacterial tests using the disc diffusion method and phytochemical tests were carried out. This study revealed that E. cottonii could be able to inhibit S. aureus ranging from 0.27Â±0.03 â€“ 2.1Â±0.14 at a concentration of 50%-100%, and 0.17Â±0.05 â€“ 0.45 Â± 0.03 against E. coli at a concentration of 80-100%. Meanwhile, saponins and flavonoids were two bioactive compounds found through phytochemical testing. The study concluded that the n-hexane extract of E. cottonii was able to inhibit the growth of E. coli and S. aureus, even with a weak inhibition category. This study recommends that improvements are needed in the E. cottonii extraction process to maximize the antibacterial properties of E. cottonii.

Comparison effectiveness of e-booklets and videos based on SESD on students' analytical thinking skills

Pambayun Wahyu Utomo — 2024-04-30

Analytical thinking skills are essential in science learning because they involve investigating a concept in everyday life, which is a product, fact, principle, and theory, and applying scientific methods as a problem-solving process. However, the analytical thinking skills possessed by junior high school students still need to improve. So, using media is one solution to improving analytical thinking skills. This research compares the effectiveness of SESD-based e-booklet media and SESD-based videos on analytical thinking skills. The method used includes quantitative comparative, which compares the effect of using e-booklets and SESD-based videos and tests the effectiveness of both media. The data analysis used was the Wilcoxon Test and effect size Cohenâ€™s d. The results of this study explain that video media and e-booklets influence analytical thinking skills. Still, SESD-based video media is superior to SESD-based e-booklet media in improving students' analytical thinking skills. The e-booklet and video media based on Science Education for Sustainable Development (SESD) is a learning media that integrates sustainable development education (ESD) into science learning, which contains the values of sustainable development for the future. So, the conclusion is that SESD-based video media is more effective than SESD-based e-booklet media.

Expert response to the development of interactive video as teaching media on cell material

Amelia Meiriska — 2024-04-30

This research originated from the lack of utilization of learning media by educators in learning biology in high school which has the potential to affect student interest in learning. This study aims to produce learning media in the form of a valid interactive video. This research refers to the research and development approach by applying the 4D development model, which consists of defining, designing, developing, and disseminating stages. The focus of this research is one of the development stages of interactive learning videos, involving the assessment of expert validators who assess three main aspects, namely the presentation of material, video quality, and language used. Data analysis was conducted using descriptive statistics. Based on the data analysis, the validity level of the developed interactive learning video reached a score of 4.6. The score indicates that the video was declared into the "valid" category. In this study, four discussion videos discussed cell material. The conclusion from the results of the data analysis shows that the interactive learning videos developed on cell concepts meet the valid criteria.

Development booklet 3-dimensional image-based digital as learning media on virus materials for senior high school

Shalmita Sakinah — 2024-04-30

Learning media is something that is used to increase studentâ€™s interest in learning activities. Limited learning media makes biology material difficult for students to understand. Virus material is a type of biological material that has a lot of material and images that are difficult to understand. So, learning media needed that is concise and has attractive images in the form of booklet 3-dimensional image-based digital as a learning medium for viral material for Senior High School. This research aims to test the feasibility and practicality booklet 3-dimensional image-based digital as a learning medium for virus material at Kartika High School 1-5 Padang. This research is a development using Thiagarajan's 4-D development model. Based on the research results obtained as follows: material expert validation results 90.15% in the very good category, media experts 94.69% in the very good category, teacher practicality test results 95.83% in the very good category, student practicality test 89.10% in the very good category. Can be concluded that booklet digital material developed on viral material is feasible and capable of increasing student interest.

Design of an e-encyclopedia of the order of odonata from sumatra as student teaching material

Nurul Safitri Siregar — 2024-04-30

This research discusses the design of the E-Encyclopedia of the Order of Odonata as teaching material for junior high school students. This research aims to introduce how to design an E-encyclopedia of the Order of Odonata from Sumatra which can be used as teaching material for junior high school students, especially children aged (13-15 years) in the Sumatra region. The urgency is that junior high school children become familiar with the various types of the Odonata Order from Sumatra so that the identity of the Odonata Order is maintained and maintained. This research is design research consisting of three phases, namely Preliminary research, Prototyping phase, and assessment phase. The design of the E-Encyclopedia of the Odonata Order from Sumatra is an effort to develop media in studying various types of the Odonata Order from Sumatra whose development is viewed from language, material, and media. Through the development activities carried out, an E-Encyclopedia Product of the Order of Odonata from Sumatra was obtained as suitable teaching material.

The Phytochemical constituents and biological activities of sungkai (Peronema canescens Jack) leaves hydroethanolic extracts

Ika Rahayu — 2024-04-30

Peronema canescens, Jack commonly known as "sungkai," has been traditionally used as a herbal medicine for various health conditions. This study aimed to explore the bioactive compound of the P. canescens leaves hydroethanolic extract, along with assessing its antioxidant and antimutagenic properties. Liquid chromatography-mass spectrometry (LC-MS) was utilized for phytochemical analysis of the hydroethanolic extracts, while antioxidant activity was evaluated through the DPPH radical scavenging method. Quantification of total phenolic and flavonoid content was achieved via colorimetric analysis. Furthermore, the DNA protection activity was assessed using plasmid pBR322 subjected to free radical treatment. The primary bioactive compounds identified in the P. canescens hydroethanolic extracts belonged to the alkaloid and flavonoid groups. The antioxidant activity of P.canescens leaves hydroethanolic extracts showed an IC50 value of 0.02Â±0.00 Âµg/mL. Additionally, the total flavonoid and phenolic content were measured at 33,769Â±3,626 Âµg QE/mL and 638,924Â±6,683 Âµg GAE/mL, respectively. Notably, P.canescens exhibited significant potential in mitigating DNA damage. In conclusion, the P. canescens leaves hydroethanolic extracts demonstrate promising attributes as a herbal medicine, highlighting notable antioxidant and antimutagenic effects.