Microbiology-Keywords 1.0 / 5 based on 1 rating ? BiologyMicrobiology and fungiA2/A-levelWJEC Created by: Autumn Rose NotherCreated on: 04-03-15 11:43 What is the Nucleoid? A single circulr 'chromosome' of DNA that does not contain protein 1 of 16 What is the cell wall made of? Peptidoglycan 2 of 16 What is the function of the cell wall? Provide strength and rigidity 3 of 16 What is the mesosome? The infolding of the plasma membrane and site of aerobic respiration 4 of 16 What is a plasmid? Small ring of additional DNA that carry extra characteristics 5 of 16 What shape is a bacterial cell classified as a Bacillus? Rod shaped 6 of 16 What shape is a bacterial cell classified as a coccus? Spherical 7 of 16 What shape is a bacterial cell classified as a sprillum? Spiral 8 of 16 What is an obligate aerobe? A bacteria that can only grow in the presence of oxygen 9 of 16 What is an obligate anaerobe? A bacteria that can only grow in the absence of oxygen as Oxygen or the products of its reactions may be toxic to their enzymes 10 of 16 What is a facultative anaerobe? A bacteria that grows best in the presence of oxygen but can survive in its absence 11 of 16 What is a thermophile? Bacteria that can survive in temperatures between 40°C and 93°C but their optimum tempearture is 50°C-60°C 12 of 16 Where may thermophiles be used? Biological washing powders 13 of 16 What is a mesophile? Bacteria that function best between 25°C and 40°C (most pathogenic bacteria are in this group) 14 of 16 What is a psychrophile? Bacteria that flourish at low temperatures (between -10°C and 20°C) 15 of 16 Where might you find psychrophiles? Icy waters of the arctic or antarctic oceans 16 of 16
Comments
No comments have yet been made