1.) You have learned that large proteins, like voltage-gated Ca2+ channels, are
ID: 49121 • Letter: 1
Question
1.) You have learned that large proteins, like voltage-gated Ca2+ channels, are composed of different subunits,where each subunit is a distinct protein. Consider native and a denatured 1 subunits from a voltage-gated Ca2+ channel. These two proteins would be identical in
a.) shape b.) amino acid sequence
2.) How many pairs of cranial nerves are found in vertebrates?
a.) 12 pairs b.) variable number
3. Consider the flow of information over the surface of a motor neuron. What is upstream from the axonal hillock?
a.) dendritic plasma membrane b.) cell body plasma membrane
Explanation / Answer
1. B. Amino acid sequence.
The native confirmation of protein determines it sunction. Change in protein,s structure alters makes it non-functional or alters its function. Denatured proteins may have similar amino acid sequences as like their native proteins but theey differ in their confirmation.
2. a. 12 pairs.
Heigher vertebrates typically have 12 number of cranial nerves.
3. b). cell body plasma membrane
Axon hillock is the connecction between nerve cell body and axon.
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