Cell Signalling and Transduction
Which of the following processes involve the combining of a message from one signaling molecule with that of another to either enhance or inhibit a cellular effect?

Signal reception
Signal integration
Signal amplification
Signal transduction

ANSWER DOWNLOAD EXAMIANS APP

Cell Signalling and Transduction
The signaling molecules called steroid hormones

bind to cell surface receptors to trigger chemical cascades
are hydrophilic and so cannot penetrate the plasma membrane
never enter the blood of humans
are made in one location of the body but have their effects some distance away

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

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

ANSWER DOWNLOAD EXAMIANS APP

Cell Signalling and Transduction
Cell signaling can be classified into

two distinct types based on the distance over which the signaling molecules act
None of these
three distinct types based on the signaling molecules
three distinct types based on the distance over which the signaling molecules act

ANSWER DOWNLOAD EXAMIANS APP