Question

Question 45 (1 point) Put the following events in the process of signal-transduction in order: i) A conformational change in the signal-receptor complex activates an enzyme, ii) Protein kinases are activated. ill) A signal molecule binds to a receptor. iv) Target proteins are phosphorylated iii), i), ii), iv) i), ii), iii), iv) i), ill), iv), ii) iii), iv), i), ii)

Answer 1

Ans- the process of signal transduction

1- binding of signal molecules to its receptor ( a signal molecules binds to a receptor)

2- binding of signal molecules to its receptor induce conformational changes in signal receptor complex and activates an enzyme

( a conformational change in the signal receptor complex activates an enzyme)

3-protein kinases are activated

4- ( for phosphorylation mostly kinase enzyme required) target proteins are phosphorylate

so option A iii), i), ii), iv), is the correct event for signal transduction