Why Is Phosphorylation-Dephosphorylation Commonly Used to Regulate Signal Transduction Pathways
Multiple Choice
Why is phosphorylation-dephosphorylation commonly used to regulate signal transduction pathways?
A) Phosphate groups are efficient second messengers.
B) Protein kinases and phosphatases are abundant in most cells.
C) The hydrolysis of bound GTP results in GDP and Pi.
D) The addition or removal of a phosphate group can expose or hide potential binding sites in proteins.
Correct Answer:
Verified
Correct Answer:
Verified
Q11: Long-lived;affects cells very distant from the releasing
Q12: Thyroid hormone is a steroid hormone that
Q13: Which of the following is considered to
Q14: You have identified a novel cytoplasmic protein.Sequence
Q15: Short lived;used by nerve cells.<br>A)paracrine signaling<br>B)direct contact<br>C)endocrine
Q17: Which of the following proteins phosphorylates MAP
Q18: Signal molecules activate intracellular receptors in<br>A)chromosomes.<br>B)vesicles.<br>C)target cells.<br>D)skin
Q19: Some plant cells have their cytoplasms linked,which
Q20: Some enzymatic receptors and most G-protein-coupled receptors
Q21: A mutation in the DNA binding domain