Biology HL IA (Grade: 7)

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본 문서는 2019년도 IB에서 모더레이트 된 후 7점을 받은 Biology HL IA 입니다. Biology IA는 고득점 포인트만 제대로 짚어주면 7점을 받기 어렵지 않으나 많은 학생들이 고득점 포인트를 제대로 잡아주지 않아 7점을 놓칩니다. 제 IA의 구성과 내용을 참고하시고 각 Criterion 에서 고득점 포인트를 잡는 방법을 벤치마킹하신다면 좋은 점수를 받으실 수 있을 것입니다. 제 IA를 통해 Biology 파이널 점수 고득점의 열쇠인 Biology IA에서 좋은 점수를 받으셔서 Biology 파이널 점수 고득점으로 이어지기를 기원합니다.

Title: The effect of increasing concentration of propolis on the growth of Escherichia coli
Research Question: What is the effect of increasing concentration of propolis on the growth of Escherichia coli as determined by diameter of zone of inhibition?

 

[본문내용]

The effect of increasing concentration of propolis on the growth of Escherichia coli

Background Information

Propolis is a beehive product made by bees using resinous substances collected from botanical sources (Pascoal). The bees use propolis to protect and repair the beehives, and also prevent the invaders from coming in the beehives by wrapping them in propolis (Pascoal). The product is mainly composed of resins, waxes, essential oils, pollen and other organic compounds, as shown in Figure 1 (Pascoal). Propolis has many pharmaceutical properties, for example: antibiotic, antiviral, antifungal activity. This investigation is valuable for development in pharmaceutical field because if the antimicrobial property of propolis can be supported, it shows that there is a potential it could be used as means of medication as an antibiotic.

The two variables being investigated are concentration of propolis and growth of Escherichia coli. E. coli is chosen as the organism used because they are one of the most common bacteria species, found in the environment, foods, and intestines of people and animals (CDC). Some E. coli can make people sick, causing diarrhea, urinary tract infections, respiratory illness and pneumonia (CDC)…

 

  • 총 페이지수: 12
  • 과목명: Biology
  • 주제: The effect of increasing concentration of propolis on the growth of Escherichia coli
  • The file is in PDF format. 
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Biology HL IA (Grade: 7)

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