IB Psychology SL : Biological level of analysis
Study concepts, example questions & explanations for IB Psychology SL
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Example Questions
Example Question #1 : Biological Level Of Analysis
__________ receive messages from other neurons. Sufficient levels of stimulation trigger the cell’s own __________, sending an electrical current down the __________ to the cell’s __________, which join with yet more cells.
Dendrites. . . neurotransmitter. . . axon. . . nerve ending
Axons. . . signal. . . myelin sheath. . . terminal buttons
Dendrites. . . action potential. . . axon. . . terminal buttons
Neurotransmitters. . . signal. . . myelin sheath. . . dendrites
Neurotransmitter. . . action potential. . . signal. . . terminal buttons
Dendrites. . . action potential. . . axon. . . terminal buttons
Nerve cells, or neurons, have a basic tree-like structure, which allows them to communicate with other nerve cells. Branch-like dendrites extend from the cell body (i.e. soma) and receive electrochemical signals from other cells. The long, thin axon endings—terminal buttons—extend from the other end of the soma. If the positively-charged signals received into the cell from the dendrites exceed the cell’s normally negative charge, then the axon allows the excess positive ions to travel down it to the terminal buttons, which in turn send neurotransmitters into the gap (i.e. synapse) between them and other cell’s dendrites. The myelin sheath does not itself relay signals, but rather is a natural lipid insulation on the axons of some cells.
Example Question #2 : Biological Level Of Analysis
__________ receive messages from other neurons. Sufficient levels of stimulation trigger the cell’s own __________, sending an electrical current down the __________ to the cell’s __________, which join with yet more cells.
Dendrites. . . neurotransmitter. . . axon. . . nerve ending
Neurotransmitters. . . signal. . . myelin sheath. . . dendrites
Neurotransmitter. . . action potential. . . signal. . . terminal buttons
Dendrites. . . action potential. . . axon. . . terminal buttons
Axons. . . signal. . . myelin sheath. . . terminal buttons
Dendrites. . . action potential. . . axon. . . terminal buttons
Nerve cells, or neurons, have a basic tree-like structure, which allows them to communicate with other nerve cells. Branch-like dendrites extend from the cell body (i.e. soma) and receive electrochemical signals from other cells. The long, thin axon endings—terminal buttons—extend from the other end of the soma. If the positively-charged signals received into the cell from the dendrites exceed the cell’s normally negative charge, then the axon allows the excess positive ions to travel down it to the terminal buttons, which in turn send neurotransmitters into the gap (i.e. synapse) between them and other cell’s dendrites. The myelin sheath does not itself relay signals, but rather is a natural lipid insulation on the axons of some cells.
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