The First Line of Defence (VCE SSCE Biology): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What are two key characteristics of the innate immune system?
What are two key characteristics of the innate immune system?
Non-specific & immediate
Why is the first line of defence more critical for plants than animals?
Why is the first line of defence more critical for plants than animals?
Plants cannot move away from danger
What is the primary function of waxy cuticles on plant surfaces?
What is the primary function of waxy cuticles on plant surfaces?
Create water-resistant barrier
How do chitinases protect plants from infection?
How do chitinases protect plants from infection?
Break down chitin in fungal cell walls
What is the mucociliary escalator in animals?
What is the mucociliary escalator in animals?
Cilia sweep trapped pathogens to throat
What is the pH range of stomach acid?
What is the pH range of stomach acid?
1.5-3.5
Which type of barrier do only animals possess?
Which type of barrier do only animals possess?
Microbiological barriers
How does normal flora prevent pathogenic infection?
How does normal flora prevent pathogenic infection?
Compete for space & nutrients
What is the function of galls in plants?
What is the function of galls in plants?
Isolate pathogen within tissue
What do lysozyme enzymes do in tears and saliva?
What do lysozyme enzymes do in tears and saliva?
Break down bacterial cell walls