14 exam-style questions. Write your answer, check it against the mark scheme and tick the points you earned. Your marks stay on this device. Your writing is not saved.
Ratings are saved in this browser on this device, under a KS4 key kept separate from International A Level recall. Written answers are temporary and cleared when you leave the page. Use Reset to clear the ratings on this device.
3.39 Neurotransmitters at synapses
Exam question
Mark points shown after marking
Describe how an impulse passes across a synapse.
(4)Write your answer, then press Show model answer and tick each mark point your answer makes. Your answer is not saved.
Total for this question: 4 marks
3.39 Neurotransmitters at synapses
Exam question
Mark points shown after marking
What crosses the gap at a synapse?
(1)Total for this question: 1 mark
3.39 Neurotransmitters at synapses
Exam question
Mark points shown after marking
Explain why impulses can only travel in one direction across a synapse.
(2)Write your answer, then press Show model answer and tick each mark point your answer makes. Your answer is not saved.
Total for this question: 2 marks
3.39 Neurotransmitters at synapses
Exam question
Mark points shown after marking
Explain why a synapse slows down the transmission of an impulse.
(2)Write your answer, then press Show model answer and tick each mark point your answer makes. Your answer is not saved.
Total for this question: 2 marks
3.39 Neurotransmitters at synapses
Exam question
Mark points shown after marking
Some painkillers block receptors on the neurone after a synapse. Suggest how they reduce pain.
(2)Write your answer, then press Show model answer and tick each mark point your answer makes. Your answer is not saved.
Total for this question: 2 marks
3.39 Neurotransmitters at synapses
Exam question
Mark points shown after marking
Explain why the neurotransmitter must be removed from the gap after an impulse.
(2)Write your answer, then press Show model answer and tick each mark point your answer makes. Your answer is not saved.
Total for this question: 2 marks
3.39 Neurotransmitters at synapses
Exam question
Mark points shown after marking
Nicotine has a similar shape to a neurotransmitter. Suggest how it affects synapses.
(2)Write your answer, then press Show model answer and tick each mark point your answer makes. Your answer is not saved.
Total for this question: 2 marks
3.39 Neurotransmitters at synapses
Exam question
Mark points shown after marking
State the name of the gap between two neurones.
(1)Write your answer, then press Show model answer and tick each mark point your answer makes. Your answer is not saved.
Total for this question: 1 mark
3.39 Neurotransmitters at synapses
Exam question
Mark points shown after marking
Explain why mitochondria are found at the end of a neurone before a synapse.
(2)Write your answer, then press Show model answer and tick each mark point your answer makes. Your answer is not saved.
Total for this question: 2 marks
3.39 Neurotransmitters at synapses
Exam question
Mark points shown after marking
Compare how impulses travel along a neurone and across a synapse.
(2)Write your answer, then press Show model answer and tick each mark point your answer makes. Your answer is not saved.
Total for this question: 2 marks
3.39 Neurotransmitters at synapses
Exam question
Mark points shown after marking
A drug stops the breakdown of a neurotransmitter. Predict the effect on the next neurone and explain.
(2)Write your answer, then press Show model answer and tick each mark point your answer makes. Your answer is not saved.
Total for this question: 2 marks
3.39 Neurotransmitters at synapses
Exam question
Mark points shown after marking
What starts an impulse in the second neurone?
(1)Total for this question: 1 mark
3.39 Neurotransmitters at synapses
Exam question
Mark points shown after marking
Explain why many synapses in the brain allow complex behaviour.
(2)Write your answer, then press Show model answer and tick each mark point your answer makes. Your answer is not saved.
Total for this question: 2 marks
3.39 Neurotransmitters at synapses
Exam question
Mark points shown after marking
Suggest why toxins that block neurotransmitter release cause paralysis.
(2)Write your answer, then press Show model answer and tick each mark point your answer makes. Your answer is not saved.
Total for this question: 2 marks
