exact vs call for

exact is an adjective but call for is not an adjective.

Word	Noun	Adjective	Verb	Adverb
exact	No	Yes	Yes	No
call for	No	No	Yes	No

As verbs, call for is a hypernym of exact; that is, call for is a word with a broader meaning than exact:

Other hypernyms of exact include ask, demand, involve, necessitate, need, postulate, require, take.

exact (adjective)	call for (adjective)
marked by strict and particular and complete accordance with fact
(of ideas, images, representations, expressions) characterized by perfect conformity to fact or truth; strictly correct
lacking compromising or mitigating elements

exact (verb)	call for (verb)
claim as due or just	request the participation or presence of
take as an undesirable consequence of some event or state of affairs	express the need or desire for
	gather or collect
	require as useful, just, or proper