PYC1501
ASSIGNMENT 01 – 2021
Please choose the correct option in each question.
1. The term spatial summation refers to . . .
1. the deactivation of neurotransmitters by the enzymes in the synaptic cleft
2. the effect of impulses from different neurons arriving at the same synapse to reinforce a post synaptic
potential
3. increased frequency of a neuron firing that triggers the release of neurotransmitters into the synaptic cleft
4. the effect of successive impulses in the same axon to reinforce a post-synaptic potential
2. The function of the . . . lobe is to help people recognize elements of an object in the visual field and integrate
them into meaningful patterns.
1. frontal
2. temporal
3. parietal
4. Occipital
3. Which of the following statements about noradrenaline is correct?
1. Noradrenalin is released by the sympathetic nerves and speed up the metabolism and the release of
glucose
into the blood
2. A lack of noradrenalin leads to the decline in cognitive functioning seen in Alzheimer’s disease
3. Noradrenalin is involved in the experience of pleasure and suppression of pain
4. Noradrenalin is associated with an increase in heart rate and contraction of blood vessels
4. A low level of serotonin is associated with . . . whereas a low level of dopamine is associated with . . .
1. muscular spasms; seasonal depression
2. seasonal depression; Parkinson’s disease
3. suppression of pain; aggression
4. mania; Alzheimer’s disease
5. Which term refers to the period whereby no impulse can be generated even with intense stimulation?
1. Absolute refractory period
2. Action potential
3. Relative refractory period
4. Resting membrane potential
6. The process whereby an impulse moves much faster by jumping from node to node when travelling through
the myelin sheaths is called . . .
1. myelination
2. frequency
ASSIGNMENT 01 – 2021
Please choose the correct option in each question.
1. The term spatial summation refers to . . .
1. the deactivation of neurotransmitters by the enzymes in the synaptic cleft
2. the effect of impulses from different neurons arriving at the same synapse to reinforce a post synaptic
potential
3. increased frequency of a neuron firing that triggers the release of neurotransmitters into the synaptic cleft
4. the effect of successive impulses in the same axon to reinforce a post-synaptic potential
2. The function of the . . . lobe is to help people recognize elements of an object in the visual field and integrate
them into meaningful patterns.
1. frontal
2. temporal
3. parietal
4. Occipital
3. Which of the following statements about noradrenaline is correct?
1. Noradrenalin is released by the sympathetic nerves and speed up the metabolism and the release of
glucose
into the blood
2. A lack of noradrenalin leads to the decline in cognitive functioning seen in Alzheimer’s disease
3. Noradrenalin is involved in the experience of pleasure and suppression of pain
4. Noradrenalin is associated with an increase in heart rate and contraction of blood vessels
4. A low level of serotonin is associated with . . . whereas a low level of dopamine is associated with . . .
1. muscular spasms; seasonal depression
2. seasonal depression; Parkinson’s disease
3. suppression of pain; aggression
4. mania; Alzheimer’s disease
5. Which term refers to the period whereby no impulse can be generated even with intense stimulation?
1. Absolute refractory period
2. Action potential
3. Relative refractory period
4. Resting membrane potential
6. The process whereby an impulse moves much faster by jumping from node to node when travelling through
the myelin sheaths is called . . .
1. myelination
2. frequency
