Scientists have found that extracellular matrix components may induce specific gene expression in embryonic tissues such as the
liver and testes. For this to happen, there must be direct communication between the extracellular matrix and the developing cells. Which kind of transmembrane protein would most likely be involved in this kind of induction? (A) integrins (B) fibronectins (C) actin microfilaments (D) receptor tyrosine kinases
Scientists have found that extracellular matrix component may induce specific gene expression in the embryonic tissues such as the liver and testes. For this to happen, there must be a direct communication between the extracellular matrix and the developing cells. The Integrins of transmembrane protein would most likely be involved in this kind of induction.
Integrins are the main principal receptors used by the cells of animal to bind to the matrix of extracellular. They are heterodimers and they function as transmembrane linkers between the actin cytoskeleton and the extracellular matrix. A cell can regulate the sticky activity of its integrins from within.
The potential energy in food is what we call a Calorie, which (note the capitalization) is actually a kiloCalorie (1000 calories). Just pick any food high in calories; fats and oils are very calorie dense.
Blood cells are typically too large to pass through the glomerular filtration membrane. However if they do, this can be indicative of problems with the filtrate.
