A major potential advantage of the “cascade sequence” resulting from hormone sti
ID: 3508470 • Letter: A
Question
A major potential advantage of the “cascade sequence” resulting from hormone stimulation is..A no choice is correct B amplification of the number activated molecules that can occur C greater direct nucleus control during the process can occur D the process can use both negative and positive feedback relationships E the process can bypass typical delays associated with hormonal relationships A major potential advantage of the “cascade sequence” resulting from hormone stimulation is..
A no choice is correct B amplification of the number activated molecules that can occur C greater direct nucleus control during the process can occur D the process can use both negative and positive feedback relationships E the process can bypass typical delays associated with hormonal relationships
A no choice is correct B amplification of the number activated molecules that can occur C greater direct nucleus control during the process can occur D the process can use both negative and positive feedback relationships E the process can bypass typical delays associated with hormonal relationships
Explanation / Answer
ANSWER - B : amplification of the number of activated molecules that can occur.
A Cascade Sequence is an amplification of the bio-mechanical mechanism where an initial reaction produces the formation of multiple sub -sequent reactions to act upon the target body cells through a second messenger.
CASCADE SEQUENCE
1. The hormone binds to the Receptor embedded in the cytoplasmic membrane of target cell.
2. change in the shape of the receptor cells.
3. change in the shape of the Enzyme Adenylate cyclase.
4. Adenylate cyclase becomes catalytically Active.
5. Conversion of ATP into cyclic AMP.( c- AMP ) in cytosol.
6. c-AMP is called a Second Messenger because the hormone itself is the first messenger.
7. c-AMP binds to an Enzyme called protein kinase.
8. The kinase molecule results in converting yet another Enzyme from an inactive state to active state.
9. The last enzyme catalyses the reaction to produce a desired metabolic end product.
10. Thus ,CASCADE SEQUENCE results in the AMPLIFICATION OF THE NUMBER OF ACTIVATED MOLECULES THAT CAN OCCUR.
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