• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

The aim of this experiment is to investigate how plants fight infection from bacteria and fungus.

Extracts from this document...

Introduction

The Anti Bacterial Properties of Plants Aim: The aim of this experiment is to investigate how plants fight infection from bacteria and fungus. Introduction: Plants are inanimate objects. Due to this plants are susceptible to infection from all kinds of different species of bacteria and fungus. Certain plants with antibacterial properties have the ability to inhibit or destroy the growth of certain bacteria. Garlic is the only antibiotic that can actually kill infecting bacteria and at the same time protect the body from the poisons that are causing the infection. Garlic is acknowledged to be as effective as penicillin. Even the blood of garlic eaters can kill bacteria and it is also reported that the vapour from freshly cut garlic can kill bacteria at a distance of 20 cms!! A common and apparently returning disease, tuberculosis was treated with garlic very successfully as the invading organism Mycobacterium tuberculosis is sensitive to several of the sulphur components found in garlic. Mint has been used for many centuries. ...read more.

Middle

Another plant will kill more bacteria within a radius than the garlic. Despite the fact that garlic does have some antibacterial properties it may not have the ability to kill all bacteria. Relationship to biological principles: This study can be related to biological principles because plants can run or hide so how would they protect themselves? To investigate we can study the antibacterial properties if they have any to see hoe effective this would be when confronted with the possibility of infection. Apparatus: * Agar plates seeded with bacteria * Plant material * Methylated sprit * Sterile pipette * Paper discs * Sterile Petri dish * Sterile forceps * Incubator Plan: Pre-prepared agar plates would be seeded with bacteria. 3g of the chosen plant would be crushed with 10 cm of Methylated sprit. This is used to kill any bacteria. The mixture would have to shaken regularly. ...read more.

Conclusion

For the same reason gloves would be used. Results: Plant Diameter of bacteria killed (mm) Garlic 10 Mint 3 Turmeric 4 Control 2 rosemary 3 thyme 4 It is difficult to distinguish anomalous results because there is little data of the same species to compare it with. To ensure that the data is reliable a micrometer was use to measure small distances. Also all substances were pipetted. Discussion: From my results I can reject my null hypotheses and accept my hypothesis that the garlic would kill more bacteria than the other plants. This can clearly be seen from the results. Therefore it can be concluded that garlic has more antibacterial properties other plants therefore theoretically making it less susceptible to disease. Mint is used by millions every day kill bacteria and plaques on their teeth. However although mint tastes nice, it is not as effective at killing bacteria as garlic is. Therefore garlic is better as toothpaste and also an anti bacterial agent. However there is a disadvantage which is the smell. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Living Things in their Environment section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related GCSE Living Things in their Environment essays

  1. Marked by a teacher

    The effects of disinfectants and antibacterial soap on bacterial growth

    5 star(s)

    of time [2] (see Appendix C for specific figures); 52.7% ethanol in Enviroquat was the lowest concentration among the disinfectants that used alcohol as an antimicrobial agent, and, as shown in Appendix C, 24 hours would clearly be sufficient time for even Enviroquat to do its job.

  2. Marked by a teacher

    An experiment to investigate the species diversity in non-trampled and trampled areas.

    4 star(s)

    so it is a good idea to use ranging poles as markers for where the tape measure should begin and end making sure that these markers are regularly checked. I could accidently take down an innaccurate reading and so therfore my readings should not be rushed, otherwise I will make careless mistakes.

  1. The effects of Garlic and Mint on bacteria

    Equipment / materials * 15 cm3 of sterile agar in an agar bottle or test tube: This is to put into the petri dish to create suitable nutrients for my bacteria cultures to grow. * Sterile petri dish: to put the agar in and to grow the bacteria culture in.

  2. Using the streak plate method, compare the effect of two different brands of toothpaste ...

    In the gram-negative bacteria the peptidoglycan is much thinner with only 15-20% of the cell wall being made up of peptidoglycan and this is only intermittently cross-linked. Here are two diagrams of the gram bacteria showing there structure and contents: As seen in the above diagrams, the gram-negative bacteria are

  1. An investigation into the antibiotic effects of penicillin and streptomycin on the bacterium Escherichia ...

    coli, and the second is merely to check that nothing went wrong. Control Disc: The control disc is a disc of filter paper that has been soaked in sterile water, and then allowed to dry. The control disc will have no affect on the bacteria, and will therefore prove that

  2. Introduction to bacteria

    It is not dangerous to eat food containing bacteria. Certainly not, as long as they are the right kind of bugs. It may even be beneficial to eat dairy products with living cultures, although the evidence is still controversial. (Source: New York Times Science Q & A) ---.0 BIOLOGICAL WARFARE: Biological weapons are a unique class of weapons, living micro organisms.

  1. The comparison of bacterial content in a range of milks.

    The most practical size of burette for this study is one of 25cm�, which has the accuracy of + or - 0.05 cm�. A graduated pipette gives the most accurate methods of measurements-I am going to use one of 10cm�.

  2. Estimating the population of non-grass plants on the school fields.

    usually grow on tall stems only so the they get noticed by the bees and so that they can reproduce. However their definetly be at least some flower because for the plant population to remain the same it must reproduce.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work