Surfactant

The following are the two statements regarding alveolar fluid: (a) It contains a surfactant that reduces the tendency of alveoli to collapse. (b) Surfactant in the alveolar fluid lowers the surface tension. Of the above statements, which one of the following options is correct?

The following are the two statements regarding alveolar fluid: (a) It contains a surfactant that reduces the tendency of alveoli to collapse. (b) Surfactant in the alveolar fluid lowers the surface tension. Of the above statements, which one of the following options is correct?

Statements : The micelle formation by a surfactant takes places at certain concentration at definite temperature . Expabnations : The temperature above which a surfactant forms micells is called Kraft point .

Assertion (A): Micelles are formed by surfactant molecules above the critical micellization concentration (CMC) . Reason(R): The conductivity of a solution having surfactant molecules decreases sharply at the CMC .

Assertion (A): Micelles are formed by surfactant molecules above the critical micellization concentration (CMC) . Reason(R): The conductivity of a solution having surfactant molecules decreases sharply at the CMC .

Pick out the wrong statement: Micelles are formed by surfactant molecules above the CMC, The conductivity of a solution having surfactant molecules decreases sharply at the CMC, Lower is the CMC of detergent, more is its detergency, Cleansing action is not related to micelle.

At CMC the surfact molecules: