Assertion: zinc's role | /r/HasProperty | key
Facets:
Source sentences:
text: It plays a key role in synaptic plasticity and so in learning.
text: Zinc plays a key role in growth and development, and is required by more than 200 metalloenzymes, including DNA- and RNA-polymerases, carbonic anhydrase, carboxypeptidase, reverse transcriptase, as well as by zinc-finger proteins involved in gene expression.
text: This means zinc plays a key role in building and maintaining lean muscle mass.
text: Zinc plays a key role in maintaining vision as well as skin integrity.