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

Biology Bacterial Culture Experiment

Extracts from this document...


Biology Bacterial Culture Experiment. Obtaining Evidence Experiments using bacterial cultures are quite dangerous because if any unwanted bacteria mixes in with the experiment or gets on our hands it can contaminate experiments. Therefore we must use aseptic techniques. Everything must be sterilized and precautions must be taken to stop bacteria from the air getting in. ...read more.


Each time we used a piece of equipment we dipped it into alcohol then burned it off to burn of anything that might be contaminating it. We did this with the necks of all the test tubes, the glass spreader used to spread the culture around the agar surface, and the forceps. While putting the culture in we made sure that we only lifted the lid very slightly so as to allow as little air as possible into it. ...read more.


To get the best results possible we made sure that the culture was spread around the whole petri dish by keeping the rod still and turning the dish all the way round. When we put the antibiotic disk in we pressed it down lightly to make sure that it was in contact with the agar and culture. When we stuck our label on we made sure that it was in the centre of the disk so that it wouldn't get in the way of measuring. We washed our hands before and after the experiment. ...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 Comparing poems 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 Comparing poems essays

  1. Clash of cultures coursework

    The culture clash here is that the old native has no choice but to accept what little money is offered, whereas the European's money is expendable. The fact that the author has chosen to portray the Europeans in such a derogative way gives the reader the moral impression that wealth cannot buy you kindness and selflessness.

  2. What is a culture? How does it affect the behaviour of an individual?

    These values sometimes may not reflect the national culture. It could be their own personal assumptions and traits, which affect their personality and management style (Robbins.S.). Founder bias the organisational culture by deciding the selection of its members. How well a candidate will fit in their organisation influence the judgement of decision makers.

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