Cell Signalling and Transduction Cell signaling can be classified into three distinct types based on the distance over which the signaling molecules act None of these two distinct types based on the distance over which the signaling molecules act three distinct types based on the signaling molecules three distinct types based on the distance over which the signaling molecules act None of these two distinct types based on the distance over which the signaling molecules act three distinct types based on the signaling molecules ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction If a disease of the blood vessels caused the endothelial cells of the vessel to die, what effect would that have on the cellular activities associated with vasodilation? Smooth muscle cells could not be made to relax It would be more difficult to increase blood flow and reduce blood pressure All of these Nitric oxide would no longer be produced Smooth muscle cells could not be made to relax It would be more difficult to increase blood flow and reduce blood pressure All of these Nitric oxide would no longer be produced ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction A signal cascade induced by adrenaline or thyroxine results in the activation of a sequence of enzymes needed for the cell effect All of these must begin with receipt of the signal molecule by a surface receptor involves the activation of a G protein results in the activation of a sequence of enzymes needed for the cell effect All of these must begin with receipt of the signal molecule by a surface receptor involves the activation of a G protein ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Which of the following is a second messenger? Phospholipase C lnositol 1,4,5-triphosphate Diacyl glycerol Both (a) and (b) Phospholipase C lnositol 1,4,5-triphosphate Diacyl glycerol Both (a) and (b) 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 allows hydrophilic signaling molecules to cross the plasma membrane None of these makes the receptor more likely to capture the signaling, molecule changes the shape and thus the enzymatic activity of the proteins involved allows hydrophilic signaling molecules to cross the plasma membrane None of these makes the receptor more likely to capture the signaling, molecule changes the shape and thus the enzymatic activity of the proteins involved ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Two key organizing principles for large multicellular organisms are cell specialization and communication between cells communication between cells and simple nerve reflexes simple nerve reflexes and cell specialization prokaryotic cell structure and cell specialization cell specialization and communication between cells communication between cells and simple nerve reflexes simple nerve reflexes and cell specialization prokaryotic cell structure and cell specialization ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS