PSB 2000 Exam 1 Questions & Answers 2024/2025
How are neurons similar to other cells in the body? How are they different? - ANSWERSSimilar to other cells in the body
-Organelles (nucleus, mitochondria, etc)
-Plasma membrane
Different from other cells in the body
- Morphology
- Communica...
Compare/contrast multipolar, bipolar, and unipolar neurons. - ANSWERSMulticolored
Multiple dendrites coming in- one axon
Bipolar
One dendrite and one axon
Unipolar
One dendrite with axon combined
200 different styles of mammals, meaning many types of neurons
Draw and label a synapse (presynaptic cell (terminal), postsynaptic cell (dendrite or dendritic spine),
synaptic cleft). - ANSWERSNeurons communicate with each other at synapses
Presynaptic cell- sending the info; the axon terminal
Synaptic cleft- the space b/t the neurons
Postsynaptic cell- receiving the info; dendrite
DRAW!!
What were the contributions of Camillo Golgi and Santiago Ramon y Cajal to our understanding of
neurons? - ANSWERSCamillo Golgi
Developed staining method to see neurons under light microscope (Golgi stain, right)
Santiago Ramon y Cajal
Used Golgi stain to examine brain
Hypothesized that brain was made up of individual units/cells
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