Question 1
What is the typical resting membrane potential of a neuron?
Correct Answer:
Approximately -70 mV
Question 2
Which ion movement primarily causes the depolarization phase of an action potential?
Correct Answer:
Na+ influx through voltage-gated sodium channels
Question 3
What restores the membrane potential toward resting levels after depolarization (repolarization)?
Correct Answer:
K+ efflux through voltage-gated potassium channels
Question 4
What is the refractory period in neuron signaling?
Correct Answer:
A brief period after an action potential during which a new one cannot (or is harder to) be triggered
Question 5
At a chemical synapse, what triggers neurotransmitter release into the synaptic cleft?
Correct Answer:
Ca2+ influx into the presynaptic terminal triggering vesicle fusion
Question 1
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Prepare with the North Rhine-Westphalia Zentralabitur Biology Practice Questions - North Rhine-Westphalia Zentralabitur Biology (Biologie) Exam practice quiz. This question bank includes 100 questions covering enzyme, potential, typically, membrane, and neuron. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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North Rhine-Westphalia Zentralabitur Biology Practice Questions - North Rhine-Westphalia Zentralabitur Biology (Biologie) Exam

This practice set contains 100 questions from the matching question bank and focuses on enzyme, potential, typically, membrane, and neuron. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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