Glossary

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Bacteria

Subject: 

  • Life Sciences

a large domain of prokaryotic micro-organisms. They are typically a few micrometres in length having a wide range of shapes, ranging from spheres called cocci, rod-shaped, called bacilli, slightly curved or comma-shaped, called vibrio, spiral-shaped, called spirilla, to tightly coiled, called spirochaetes. A small number of species even have tetrahedral or cuboidal shapes. Bacteria are present in most habitats on Earth, growing in soil, acidic hot springs, radioactive waste, water, and deep in the Earth's crust, as well as in organic matter and the live bodies of plants and animals.

Related Terms: 

domain

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Exam practice is essential. Make sure your student has access to practice exam papers for the subjects they take. Make sure the exam papers relate to the correct version of the curriculum.

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Studying should be active. Your child should be making notes, working through examples, doing practice exam papers and testing herself on the sections she is studying.

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Formulae sheets or key concept sheets are useful for quick revision. Get your teenager to stick them on the wall in their room. The more they look at the formulae and key concepts, the more likely...

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Different study methods work for different students. Find out what works for your child so you understand how you can support him or her.

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