A-Level Biology - Action Potentials, DNA & Enzymes
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Last updated over 3 years ago
7 questions
Answer all the questions below.
1
What is the ion distribution when the neuron is at rest?
What is the ion distribution when the neuron is at rest?
1
View the potential chart as you stimulate the neuron. The upwards deflection is caused by the movement of sodium ions into the neuron.
View the potential chart as you stimulate the neuron. The upwards deflection is caused by the movement of sodium ions into the neuron.
1
Describe the movement (and mechanism) of the ions during the action potential.
Describe the movement (and mechanism) of the ions during the action potential.
1
Use the data provided to plot the graph.
Use the data provided to plot the graph.
1
Use the graph from the previous question to calculate the rate of reaction 10, 80 & 140 seconds after the start. Show all your working.
Use the graph from the previous question to calculate the rate of reaction 10, 80 & 140 seconds after the start. Show all your working.
1
What name is given to the mode of replication of DNA?
What name is given to the mode of replication of DNA?
1
Click on a base that represent adenine.
Click on a base that represent adenine.
