Why is the enzyme-substrate complex usually compared to a “lock and key” model?

The enzyme-substrate complex is compared to a lock and key model because the active sight (lock) can only be fit by a certain substrate (key) or else the enzyme will not work. Basically saying that the enzyme is very very specific and if anything is incorrectly shaped even by just 1 millimeter it won't work.

-Hope I helped!

This is s cute awee : (( . well if she's showing you signs that she may like you , then shoot your shot ! don't be afraid . & if you're unsure that she's giving you these signs , then wait out for a little bit . most girls are different . some may act really sweet , but only bc you're a good friend of hers . that , or she might like you . you just never know . but i think you should sit down with her & tell her how you feel . but don't be awkward & shy . just be straight up & tell her how you feel . if the feelings aren't mutual , then don't cry about it . you need to respect her decision & look for others in the world . feelings can be difficult & confusing , but don't be afraid to show them . i say you play it out & if you're still unsure about it , talk to her . - rach

Where is the data? ? and graph