Response to Stimuli (AQA A-Level 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 the key difference between sensory reception and sensory perception?
What is the key difference between sensory reception and sensory perception?
Reception detects; perception interprets
Which stimulus do Pacinian corpuscles specifically respond to?
Which stimulus do Pacinian corpuscles specifically respond to?
Mechanical pressure
What is the function of a transducer in sensory reception?
What is the function of a transducer in sensory reception?
Converts one energy form to another
What type of energy conversion occurs in Pacinian corpuscles?
What type of energy conversion occurs in Pacinian corpuscles?
Mechanical to electrical
Where are Pacinian corpuscles particularly abundant?
Where are Pacinian corpuscles particularly abundant?
Fingertips and soles of feet
What is found at the centre of a Pacinian corpuscle?
What is found at the centre of a Pacinian corpuscle?
Sensory neurone ending
What is the state of stretch-mediated sodium channels when no pressure is applied?
What is the state of stretch-mediated sodium channels when no pressure is applied?
Closed and too narrow for sodium ions
What happens to stretch-mediated sodium channels when pressure is applied?
What happens to stretch-mediated sodium channels when pressure is applied?
They widen
What is a generator potential?
What is a generator potential?
Membrane potential becoming less negative
What is mechanotransduction in Pacinian corpuscles?
What is mechanotransduction in Pacinian corpuscles?
Converting mechanical to electrical energy