Dormancy (Leaving Cert Biology): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is dormancy in seeds?
What is dormancy in seeds?
A resting period with reduced metabolism
When do dormant seeds typically germinate?
When do dormant seeds typically germinate?
In spring when conditions are suitable
Which growth inhibitor may be present in the outer part of seeds?
Which growth inhibitor may be present in the outer part of seeds?
Abscisic acid
How does an impermeable testa cause dormancy?
How does an impermeable testa cause dormancy?
It blocks water or oxygen entry
What environmental factors trigger growth regulators in seeds?
What environmental factors trigger growth regulators in seeds?
Increased light and higher temperatures
How does dormancy protect seedlings?
How does dormancy protect seedlings?
From harsh winter conditions
What advantage does seed dispersal time provide?
What advantage does seed dispersal time provide?
Movement to new locations
How does staggered dormancy benefit a species?
How does staggered dormancy benefit a species?
Seeds remain in soil, aiding survival
What does soaking seeds in water achieve?
What does soaking seeds in water achieve?
Softens testa and activates enzymes
Why are seeds placed in a cold environment overnight?
Why are seeds placed in a cold environment overnight?
To mimic winter conditions