Bioelectricity Quiz - BME 111
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BME 111: (2007 FALL) Take Assessment: Bioelectricity 1. The structures that conduct information away from the cell body and are quite variable in length are called the? dendrites cell bodies axons sarcolemmas all of the above 2. The principle anion outside the cell is? Cl - DNA K+ Proteins 3. In the brain, one neuron may form synapses with up to 10,000 other neurons. True False 4. The resting membrane potential is primarily due to separation of proteins separation of lipids separation of charges separation of cells first guess was D and it was wrong. Changed to answer C. 5. some emergent properties of the brain include music consciousness cognition language All of the above
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quiz from BME 111
Transcript of Bioelectricity Quiz - BME 111
BME 111: (2007 FALL)Take Assessment: Bioelectricity
1. The structures that conduct information away from the cell body and are quite variable in length are called the?
dendrites cell bodies axons sarcolemmas all of the above
2. The principle anion outside the cell is? Cl - DNA K+ Proteins
3. In the brain, one neuron may form synapses with up to 10,000 other neurons.
True False
4. The resting membrane potential is primarily due to
separation of proteins separation of lipids separation of charges separation of cells
first guess was D and it was wrong. Changed to answer C.
5. some emergent properties of the brain include
music consciousness cognition language All of the above
6. The principle anion in the cell is
K+ Cl- DNA Proteins
7. The nervous system is able to integrate and control some of the functions of the organism because of its signalling properties.
True False
8. The resting membrane potential is negative because
there are many proteins inside the cell. there are many K+ inside the cell there are many Na+ ions outside the cell. the lipid bilayer is amphipathic.
9. Synapses
are the junctions between the axon of one neuron and the dendrites of another neuron
contain volatge-gated calcium channels contain numerous synaptic vesicles that contain one type of neurotransmitter All of the above
10. The structures that receive information in a neuron are called the
dendrites cell bodies axons sarcolemmas
11. The voltage-gated sodium channel is closed when
the membrane potential decreases to -80 mV. the threshold voltage value for the membrane potential is reached the sodium concentration is 10 fold greater outside the cell than inside the cell. the membrane potential reaches 30 mV
12. Neurons (nerve cells) contain
dendrites cell bodies axons all of the above B and C
13. The cerebellum is involved in speech and language emotions coordination of movements and balance mathematics
14. The synaptic vesicles contain many molecules of a specific neurotransmitter
fuse with the plasma membrane when Ca++ ions are present in the cytoplasm release the neurotransmitter molecules into the synaptic cleft All of the above A and C
15. Opening the voltage gated sodium channel
allows sodium ions to diffuse into the cell . allows sodium ions to diffuse out of the cell allows potassium ions to diffuse into the cell allows chloride ions to diffuse into the cell
associated web pages used to check answers.
http://drolex.net/student/viewtopic.php?p=64&sid=374da9e103589075d01837064cc92a65
