Question

Macromolecules in the cell can often interact transiently as a result of noncovalent interactions. These weak interactions also produce stable, highly specific interactions between molecules. Which of the factors below is the most significant in determining whether the interaction will be transient or stable?

(a) the size of each molecule
(b) the concentration of each molecule
(c) the rate of synthesis
(d) surface complementarity between molecules

Answer 1

Surface complementarity between molecules is the most significant factor in determining whether the interaction will be transient or stable.

Step-by-step explanation:

The most significant factor in determining whether the interaction between macromolecules in the cell will be transient or stable is surface complementarity between molecules. Surface complementarity refers to how well the shapes and structures of the interacting molecules fit together. When the surfaces of the molecules have a high degree of complementarity, they can form stable, highly specific interactions. On the other hand, if the surfaces do not match well, the interaction is more likely to be transient.