Bacteria (Leaving Cert Home Economics): Quizzes
📚Quizzes
Practise the questions
13 questions from this quiz
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Practise the questions
13 questions from this quiz
What does the acronym FATTOM stand for in relation to bacterial growth conditions?
What does the acronym FATTOM stand for in relation to bacterial growth conditions?
Food, Acidity, Time, Temp, Oxygen, Moisture
Which type of bacteria requires oxygen to survive and grow?
Which type of bacteria requires oxygen to survive and grow?
Aerobic bacteria
What is the optimal temperature range for most bacterial growth?
What is the optimal temperature range for most bacterial growth?
Between 25°C and 40°C
What is the process called by which bacteria reproduce?
What is the process called by which bacteria reproduce?
Binary fission
How quickly can some bacteria double their population under optimal conditions?
How quickly can some bacteria double their population under optimal conditions?
Every 20 minutes
Which bacterial structures are extremely resistant and can survive normal cooking temperatures?
Which bacterial structures are extremely resistant and can survive normal cooking temperatures?
Endospores
During which growth phase do bacteria multiply at their maximum rate?
During which growth phase do bacteria multiply at their maximum rate?
Log phase (exponential growth phase)
Which bacterial genera typically form endospores?
Which bacterial genera typically form endospores?
Bacillus and Clostridium species
What colour do Gram-positive bacteria appear after Gram staining?
What colour do Gram-positive bacteria appear after Gram staining?
Purple
Which type of bacterial toxin is actively released by bacteria during their lifetime?
Which type of bacterial toxin is actively released by bacteria during their lifetime?
Exotoxins
What shape are bacillus bacteria?
What shape are bacillus bacteria?
Rod-shaped
What role do plasmids play in antibiotic resistance?
What role do plasmids play in antibiotic resistance?
Carry genes providing resistance
Which bacteria are used in yoghurt production?
Which bacteria are used in yoghurt production?
Lactobacillus & Streptococcus thermophilus