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Bacteria

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Key Stage 3

Meaning

A magnified image of several bacteria.

Bacteria are unicellular micro-organisms that have no nucleus, mitochondria or chloroplast but do have cytoplasm, a cell membrane and a cell wall.

Singular Noun: Bacterium
Plural Noun: Bacteria
Adjective: Bacterial

About Bacteria

Bacteria can cause disease but some are important to keep us healthy.
Some bacteria have a tail called a flagellum.
Bacteria do not have a nucleus.
The DNA of bacteria is in a loop. There are also smaller rings of DNA called plasmids.
BacteriaDiagram.png
A diagram showing the features of a bacterium.

Key Stage 4

Meaning

Bacteria are unicellular prokaryotes (with no membrane bound organelles) and are a domain of organisms in the three domain system.

About Bacteria

Bacteria can cause disease but some are important to keep us healthy.
Disease causing bacteria are known as pathogenic bacteria.
Some bacteria have a tail called a flagellum propel it move through water.
Some bacteria are encased in a slime capsule which protects them from phagocytes and some toxic chemicals.
Bacteria do not have a nucleus.
The DNA of bacteria is in a loop. There are also smaller rings of DNA called plasmids.
BacteriaDiagram2.png
A diagram showing the features of a bacterium.

References

AQA

Bacteria (three-domain system), page 249, GCSE Combined Science Trilogy; Biology, CGP, AQA
Bacteria (three-domain system), page 309, GCSE Biology, CGP, AQA
Bacteria, pages 11, 16, 17, 46, 48, 104, GCSE Biology; The Revision Guide, CGP, AQA
Bacteria, pages 11, 42, 43, 80, GCSE Combined Science; The Revision Guide, CGP, AQA
Bacteria, pages 124, 128, GCSE Combined Science Trilogy; Biology, CGP, AQA
Bacteria, pages 130, 134, GCSE Biology, CGP, AQA
Bacteria, pages 2-4, GCSE Combined Science Trilogy 1, Hodder, AQA
Bacteria, pages 3-4, 80, GCSE Biology, Hodder, AQA
Bacteria, pages 8-9, 76-83, 86-87, 100-103, 224, 230, 248-249, 252, 266, 269, 278, 282-283, GCSE Biology; Third Edition, Oxford University Press, AQA
Bacteria, pages, 12, 22-3, 40-3, 97, 129, 138-9, 142-3, 282, 292-3, 300-1, 341, 346-7, GCSE Biology; Student Book, Collins, AQA
Bacteria; antibiotic resistance, page 89, GCSE Combined Science Trilogy 1, Hodder, AQA
Bacteria; Antibiotic resistance, pages 61-3, GCSE Combined Science Trilogy 2, Hodder, AQA
Bacteria; Binary fission, pages 28, GCSE Combined Science Trilogy 2, Hodder, AQA
Bacteria; extremophile, 340-1, GCSE Biology; Student Book, Collins, AQA
Bacteria; Genetically engineered, pages 52, GCSE Combined Science Trilogy 2, Hodder, AQA
Bacteria; identification of, page 83, GCSE Combined Science Trilogy 1, Hodder, AQA
Bacterial cell, pages 22-3, 40-3, GCSE Biology; Student Book, Collins, AQA
Bacterial cells, page 24, GCSE Biology, CGP, AQA
Bacterial cells, page 24, GCSE Combined Science Trilogy; Biology, CGP, AQA
Bacterial diseases, page 128, GCSE Combined Science Trilogy; Biology, CGP, AQA
Bacterial diseases, page 134, GCSE Biology, CGP, AQA
Bacterial diseases, page 92, GCSE Combined Science Trilogy 1, Hodder, AQA
Bacterial diseases, pages 79, 82-3, 103, GCSE Biology, Hodder, AQA

Edexcel

Bacteria (domain), page 137, GCSE Biology, CGP, Edexcel'
Bacteria, pages 10-11, GCSE Biology, Pearson, Edexcel'
Bacteria, pages 10-11, GCSE Combined Science, Pearson Edexcel'
Bacteria, pages 11, 35, 39, GCSE Combined Science; The Revision Guide, CGP, Edexcel'
Bacteria, pages 12, 49, 55, GCSE Biology; The Revision Guide, CGP, Edexcel'
Bacteria, pages 24, 153-156, 301, 306, 307, 310, GCSE Biology, CGP, Edexcel'
Bacteria; cultures of, pages 63, 64, GCSE Biology; The Revision Guide, CGP, Edexcel'
Bacteria; genetic engineering, page 65, GCSE Combined Science, Pearson Edexcel'
Bacteria; genetic engineering, page 89, GCSE Biology, Pearson, Edexcel'
Bacteria; nitrates, pages 142-143, GCSE Combined Science, Pearson Edexcel'
Bacteria; nitrates, pages 200-201, GCSE Biology, Pearson, Edexcel'
Bacterial lawn plates, page 107, GCSE Biology, Pearson, Edexcel'
Bacterial; cells, page 24, GCSE Biology, CGP, Edexcel'
Bacterial; cultures, pages 179-181, GCSE Biology, CGP, Edexcel'

OCR

Bacteria pages 12, 89, 91, 92, 97, 98, Gateway GCSE Biology; The Revision Guide, CGP, OCR
Bacteria, pages 11, 67, 68, 73, 74, Gateway GCSE Combined Science; The Revision Guide, CGP, OCR
Bacteria; antibiotics, pages 169, 228-229, Gateway GCSE Biology, Oxford, OCR
Bacteria; cells, pages 20-21, Gateway GCSE Biology, Oxford, OCR
Bacteria; colony isolation technique, page 231, Gateway GCSE Biology, Oxford, OCR
Bacteria; decomposition, page 144, Gateway GCSE Biology, Oxford, OCR
Bacteria; evolution, page 169, Gateway GCSE Biology, Oxford, OCR
Bacteria; food poisoning, page 214, Gateway GCSE Biology, Oxford, OCR
Bacteria; genetic engineering, pages 200, 202-203, Gateway GCSE Biology, Oxford, OCR
Bacteria; identification, page 231, Gateway GCSE Biology, Oxford, OCR
Bacteria; measurement, pages 262-263, Gateway GCSE Biology, Oxford, OCR
Bacteria; plant disease, pages 216-217, Gateway GCSE Biology, Oxford, OCR
Bacteria; transgenic bacteria, page 203, Gateway GCSE Biology, Oxford, OCR
Bacteria; zone of inhibition, pages 228-229, Gateway GCSE Biology, Oxford, OCR