Simile is used here bcz simile contains as and like
I’m pretty sure it’s D ) non manual signals
Dbbdndnsnsnwnd d ndndndnsmns xbnxdnd. Jdjdbd d dnnsnd dnndndndndnd jjj jj
1. speed up chemical reactions
2. are not destroyed but re-used
3. are substrate specific
4. genes determine how many enzymes you have
5. decrease the activation energy needed to start a chemical reaction
6. are protein catalysts
