A feature common to all control mechanisms is:
A) quorum sensing
B) phosphorylation cascades
C) ability to sense that something inside or around the cell has changed
D) housekeeping enzymes
E) increased or decreased gene expression

Question

Quizplus · Accepted Answer

All control mechanisms have the ability to sense that something inside or around the cell has changed. This is necessary for the control mechanism to respond appropriately to maintain homeostasis.

Other answer options do not apply to all control mechanisms. Quorum sensing, for example, is a mechanism used by bacteria to coordinate behavior based on population density but is not present in all control mechanisms. Phosphorylation cascades are specific to signaling pathways and not all control mechanisms involve signaling. Housekeeping enzymes are involved in general metabolic processes and are not necessarily involved in control mechanisms. Gene expression is certainly a common outcome of control mechanisms, but not all control mechanisms involve regulating gene expression.

A Feature Common to All Control Mechanisms Is