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Peningkatan Hasil Belajar Biologi Siswa Kelas XI IPA SMA Negeri 1 Ajangloe Kabupaten Bone Melalui Model Pembelajaran ATI
Get PDFThis research aims to identify improvement of biological learning achievement through the application of ATI (Aptitude, Treatment, Interaction) learning model on students of Class XI Science 3 SMA 1 Ajangale Bone. This research is packaged in classroom action research conducted in cycle repeats. Each cycle consisted of planning, action, observation, reflection and replanning. Data collected through learning achievement test which given after first and second cycle, and then analyzed by descriptive statistics quantitative. The results showed that implementation of the ATI (Aptitude, Treatment, Interaction) learning model can improve biological learning achievement of the student of Class XI Science 3 SMA 1 Ajangale Bone
Studi Pendahuluan Adanya Senyawa Flavanoid Pada Tumbuhan Sarang Semut (Myrmecodia tuberosa)
Get PDFThis study aimed to isolation and characterization the flavonoid compounds in plants ant nest (M. tuberose) from Village District Majannang Parigi, Gowa regency in South Sulawesi. This research was conducted through several phases, namely: sample preparation, isolation and characterization. Isolation starting from extraction, followed by fractionation and purification, among others, by recrystallization, then performed characterization, which among others, performed with test reagent 1% AlCl3 in ethanol, FeCl3 and with benedict, thin layer chromatography and melting point test. Results of research conducted on the basis of several characterization, obtained pure compounds form crystals amount of 220 mg of yellowish white, needle-shaped, with melting point 116-117 º C, Rf with eluen BAA by 71, reacted positively to the reagent 1% AlCl3 in ethanol which is marked yellow spots occur and with reagent benedict give a light blue under UV light, reasonably suspected that the compound obtained is a type of flavone of flavonoid compounds
Peranan Lifestyle terhadap Kejadian Pra-Diabetes di Kota Makassar
Get PDFImpaired Glucose Tolerance (IGT) is defined as an early phase of Diabetic Type-2 process. IGT shows an occurance of early phase of Diabetic and asymptomatic. The prevalence is increased in accordance to poor or unhealthy lifestyle such as over consuming of carbohydrate and lack of physical excercises. The aim of the study was to analyze the correlation between lifestyle and individual with obesity, obesity and pre-diabetic, and lifestyle with pre-diabetic.The study was conducted at the Kassi-Kassi Public Health Center in Makassar from May to July 2009. The study was a case control study. The number of samples was 54 people selected by purposive sampling. The sampling were divided into 27 pre-diabetic individuals and 27 individuals with normal blood glucose. The data were collected through structured interview and questionnaire. The measurement of height, weight, waist circumference, blood pressure, and blood samples was done twice after fasting 12 hours for fasting blood glucose and oral glucose tolerance test. The data were analyzed by using univariate, bivariate with chi square, and independet t-tes and Mann-Whitney test. The result of the study indicate that lifestyle has a role in the incident of pre-diabetic in which p = 0,021.Lifestyle has been proved affecting pre-diabetic event trought obesity. This research shows a correlation between lifestyle and obesity, and also connection between obesity and pre-diabetic incident
Pengaruh Fitosterol Tumbuhan Lamun ( Enhalus acoroides) Terhadap Fertilitas Mencit (Mus musculus) ICR Jantan
Get PDFIn Indonesia, the high growth of population is special problem. Because of that, the government had to done something to holding the rate population problem, that one of them is Planning Family (KB) in national program. Increased of rate acceptor KB can give effect to contraception logistic crisis, so it can be decreased logistic supply. By the way, the development of contraception from plant is one of alternative that can do it. Indonesia is tropical country that have richness flora. More than 940 species that has planting and used be herbal medicine or traditional medicine and from 75th family are more than 225th plant species that used be contraception material. One of them is sea grass (Enhalus acoroides) because it’s contained steroid, that’s can be isolated from all of body plant, like roots, rhizome, and leaf. Fitosterol on leaf sea grass is very potential that it had to explore in biology aspect. It’s very important in supply steroid, to be contraception material and or medicine. This research aimed to knows the influence fitosterol of sea grass (Enhalus acoroides) to fertility of Mencit (Mus musculus) male ICR. There are four experiments (A0= control : just give it to mencit is suspension of fitosterol sea grass and A1, A2, A3 : give it to mencit is dose of fitosterol sea grass with each experiment are 25, 50 and 75 mg/kg per mencit). Rate of mencit in experiment are 60 mencit. The parameter of research are heavy of testis, epididimis and vesikula seminalis, rate and sperm mortality, and so conception from male mencit. Based on the results of that research has been done shows that the fitosterol of sea grass is making influence to mencit, like increasing of heavy of testis, epididimis and vesikula seminalis, and mortality of mencit. But it can decrease of sperm rate and conception of mencit. It’s meaning that the higher dose of fitosterol can make lower of result
Pengaruh Pembelajaran dengan Metode Pemberian Tugas dan Resitasi terhadap Hasil Belajar Biologi Siswa Kelas XI SMA Negeri 3 Makassar
Get PDFThis was a quasy experiment involving control group and experiment one in which the subject was the students of class XI of SMA Negeri 3 Makassar in the school year of 2008/2009. The aim of the research were to knowledge the effect of the learning method in which the students were given assignments and recitation and to compare the study results of the students who were given the assignment and recitation with those who were not. It was done by using Posttest-Only Control Design. The number of the subject was 81 which was chosen by cluster random sampling from 365 students. It was then divided into two groups: experiment group (41 subjects) and control group (40 subjects). The study results of the students in Biology Subject were analyzed by using descriptive statistic and inferensial one. It was shown that the mean of the study results of the students who were given assignment and recitation was higher than of those who were not (t 2,846 > 0,716 with α = 0,05). In conclusion, taking assignment and recitation in the learning process has a positive influence significantly to the study results of the students
[email protected] Enzim Kitinase dari Beauveria bassiana galur Lokal Sul
No full textThis study aims to determine the enzyme activity of chitinase B. bassiana strain found in South Sulawesi. Knowing the relationship between the activity of chitinase enzyme isolate-isolate B.bassiana strain in South Sulawesi with mortality grayak caterpillar (Spodoptera litura). This descriptive research by linking the enzyme activity of chitinase from Beauveria bassiana strain local South Sulawesi on mortality grayak caterpillar larvae (Spodoptera litura). Based on the research that has been done shows that the activity of the enzyme from South Sulawesi B.bassiana local strains showed differences in each isolate, isolates the origin Enrekang 7.15 units / ml, isolate origin Bantaeng 7.12 units / ml, 6.32 units of isolate origin Pinrang / mi and isolate the origin of Maros 6.2 units / ml. There is a relationship between enzyme activity with mortality rates of larvae of Spodoptera litura. The highest mortality is caused by the isolate origin Enrekang 86%, followed by the isolate origin Bantaeng 83%, 76% Pinrang origin isolates and isolate the origin of Maros 73%
Pembentukan Kapsul/Nodul Larva Helicoverpa armigera Hubner (Lepidoptera : Noctuidae) Pasca Infeksi HaNPV (Helicoverpa armigera NUCLEAR POLYHEDROSIS VIRUS)
Get PDFNPV is one of the biological insecticides that kills the target by infecting their cells including hemocytes. Hemocytes play a key role on defence mechanism against pathogens like NPV. This defense mechanism may cause the insect to become more tolerant as well as to chemical insectisides. The tolerances of insect to NPV could be induced by cellular immune system (CIS). One of the CIS is capsules/nodules formation. Based on that assumption, this research was conducted to observe the alteration of capsules/nodules formation of Helicoverpa armigera larvae post sublethal infection of HaNPV (Helicoverpa armigera nuclear polyhedrosis viruses). The fifth instar Helicoverpa armigera ware infected by sublethal doses of HaNPV. 24 hour post infection, partly of survive larvae reared to get their first (NPV-F1) and second filial (NPV-F2). Another survivor induced by hit killed Bacillus cereus, and then its haemocoel were exposed under stereo microscope (total magnification, 60 X) to watch capsules/nodules that appear as black spots on haemolymph. This procedure also conducted to fifth instar larvae of NPV-F1, NPV-F2, control (K-P) and their filial (K-F1 and K-F2), blank and placebo. The result showed that the number of nodules/capsules on larvae were not significant between control and the NPV-treat larvae on every generation, which was about 4 nodules/capsules. It showed that there is no cellular immune respon changed on NPV-P larvae, so their immune ability are similar to larvae K-P. The recoveries of NPV-P larvae cause it have a good capability to produce offspring with good immune response. So, NPV-F1 and NPV-F2 larvae have same ability as K-F1 and K-F2 larvae. It can be concluded that the use of sublethal dosage of HaNPV has not changed formation of capsules/nodules of H. armigera larvae and their offspring
Laju Pertumbuhan Jamur Rhizopus sp. pada Tempe Kacang Hijau (Phaseolus radiatus L.)
Get PDFThis research was a descriptive study, which aims to determine the rate of growth of the fungus Rhizopus sp. the green bean tempe. This research was conducted by growing the fungus on PDA medium using fungus inoculum of 1 gram of green beans with tempeh making dilutions, starting from the dilutions 10-2 , 10-3 and 10-4 are plated on a petri dish of 0.1 mL and incubated for 24 hours. Variation of time of fermentation used without fermentation (0 h), 12 hours, 24 hours, 36 hours, 48 hours, 60 hours and 72 hours for each serial dilution. The number of fungi indirectly calculated using the count method bowls. The results of this study indicate that optimum growth is shown in 36 hours fermentation time with the number of colonies on the 10-2 dilution of 69 colonies (6.9 x 103 colonies / g) and 10-3 dilutions of the 27 colonies. While the 10-4 dilution only at the time of fermentation 36, 48 and 60 hours of growth of 2 colonies and each colony 1. The longer the fermentation time decreased the amount of mushrooms
Isolasi dan Identifikasi Sterol dari Ekstrak n-heksana Daun Meniran Hijau Phyllanthus niruri L. (Euphorbiaceae)
Get PDFOne of the secondary metabolite, namely a sterol had been iosolated from the n-hexane extract of Phyllanthus niruri L leaves. This compound was obtained by isolation that consist of extaction, fractionation, purification, and identification. The identification covers the melting point test, thin layer chromatography and Liebermann-Burchard test. The research results show that the compound is white needle crystal with the malting point 120-122⁰C and positive with Lieberman-Burchard reagens that give blue-green coulor. This compound have not yet been established, because it must be evaluated by spectroscopy.methods. Keywords: isolation, Phyllanthus niruri L., sterol, Liebermann-Burchard reagent, spectroscopy metho
Perbandingan Prestasi Akademik Mahasiswa Jurusan Biologi Jalur PMJK/PMDK dengan SPMB
Get PDF This study aims to determine academic achievement of biology student PMJK/PMDK, knowing academic achievement of biology students SPMB and find the differences between academic achievement of biology students' PMJK/PMDK with SPMB. Kind of research is ex post facto research with the population are biology student whole academic year 2008/2009 and samples include (1) Line SPMB taken by way of purposive sampling as many as 168 students of class 2005, 2006 and 2007. (2) Line PMJK taken entirely in force in 2005, 2006 and 2007 are still active that is counted 168 people. Data collection techniques using secondary data is student GPA data 2005, 2006 and 2007. GPA is calculated until the second semester academic year 2008/2009. Further data are analyzed quantitatively with percentages and inferential analysis with t test. The results of analysis of research data obtained by the average GPA of students and PMK SPMB line is 2.958 and the result t-test = 0:01, P = 0999. The research concluded that academic achievement of biology student PMJK/ PMDK and SPMB is very satisfy category with average GPA = 2,958 and there was no difference academic achievement of biology student PMJK/PMDK and SPMB