Cell Signalling and Transduction
In paracrine signaling, the signaling molecules affects only

None of these
target cells distant from its site of synthesis in cells of an endocrine organ
target cells close to the cell from which it was secreted
both (a) and (b)

ANSWER DOWNLOAD EXAMIANS APP

Cell Signalling and Transduction
Nitroglycerin has long been administered to human patients suffering from chronic chest pain (angina). This medication works because it

mimics the action of signal receptors
is broken down into hormones that affect the heart
breaks down into nitric oxide, which increases blood flow to the heart
interferes with chemical cascades that trigger contraction of heart muscle

ANSWER DOWNLOAD EXAMIANS APP

Cell Signalling and Transduction
Self-phosphorylation is an excellent mechanism for triggering specific catalytic function of the proteins involved in signal cascades because it

None of these
makes the receptor more likely to capture the signaling, molecule
allows hydrophilic signaling molecules to cross the plasma membrane
changes the shape and thus the enzymatic activity of the proteins involved

ANSWER DOWNLOAD EXAMIANS APP