1) There can be several hundred types of ion channels within a single cell. Muta
ID: 3504887 • Letter: 1
Question
1) There can be several hundred types of ion channels within a single cell. Mutations within these channels is known to cause many different diseases, collectively known as channelopathies. With this in mind, discuss whether the many channels provide redundancy within the cell or if they cater to specific, independent functions.
2)Transport proteins are very specific to the solutes they move across the membrane. Is this advantageous or disadvantageous? Defend your stance.
3)Cell communication requires that a chemical messenger and its appropriate receptor bind to initiate a signaling cascade. Describe the biogenesis of both the messenger and the receptor.
Explanation / Answer
2. A transport protein or carrier protein transfers a solute molecule through the lipid bilayer result in an enzyme-substrate reaction,and in very many ways it behaves like enzyme.where the solute is passed through the membrane unchanged. it is an advantageous because it has specific binding site for its solute.generally this process is carried out in Active transport in ATP phase.active transport protein is found in cell membrane,also found in mitochondria, chloroplasts and nucelous.so they allow only particular solute to transfer through its cell membrane.
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