Which statement about biological signaling (biosignaling) is NOT true? A.) Some

Question

Which statement about biological signaling (biosignaling) is NOT true?

A.) Some membrane-associated receptors can activate kinases inside the cell cytoplasm.

B.) cyclic AMP (cAMP) is produced from ATP and is an important intracellular messenger.

C.) Some biological signals are transduced by the opening of membrane ion channels.

D.) G proteins are "molecular swiches" that are activated by glucose (hence the G in the name).

E.) Diacylglycerol is an important signaling molecule that is produced from phospholipids.

Explanation / Answer

All the given statements are true except the option d.

G proteins are the guanine nucleotide binding proteins. The activity of these proteins depend on their ability to hydrolyze guanosine triphosphate. When the proteins are bound to GTP, they are active but inactive when bound to GDP.

Option d is the answer.

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.