scrape vs scratch up

scrape is a noun but scratch up is not a noun.

Word	Noun	Adjective	Verb	Adverb
scrape	Yes	No	Yes	No
scratch up	No	No	Yes	No

As verbs, scrape and scratch up are synonyms defined as:

Other synonyms of scrape include scratch.

scrape (noun)	scratch up (noun)
an indication of damage
a deep bow with the foot drawn backwards (indicating excessive humility)
a harsh noise made by scraping
an abraded area where the skin is torn or worn off

scrape (verb)	scratch up (verb)
scratch repeatedly	cut the surface of; wear away the surface of
bruise, cut, or injure the skin or the surface of
cut the surface of; wear away the surface of
gather (money or other resources) together over time
make by scraping
bend the knees and bow in a servile manner