9/24/10

Carey E.
Today we did notes from the organics packet(green packet) pages 5-8.

I. Acids

• When ions dissociate, the positives and negatives must equal zero. ex: 2+'s + 2-'s=0
• Most acids start with hydrogen.

II. Neutral

• Solution where concentration of H+ and OH ions are equal

III. Substrate and Active Site

• Substrate is putting together or breaking apart binds to an enzyme that fits. Called an induced fit. This is an action that takes place on site.
• Enzymes are recycled and do not change shape.
• When the substrate is in the enzyme, water is added to break the bond of the substrate.
• Most enzymes' suffix is ase. ex: glucose and fructose.
• Enzymes keep working until there are no more substrates.
• Every enzyme has a different tolerance of Ph.

IV. Enzyme Inhibition

• Drugs and bacteria can inhibit-slow down-enzymes.
• An inhibitor blocks the substrate from reacting with the enzyme.
• Inhibitors can bind to another part of the enzyme and change the shape of the active site. ex: A water balloon changes its shape when something touches it.
• Good and Bad
• Good: it stores some food for reserve
• Bad: you aren't getting the products you need
• This reaction speeds up or slows down based on you're activity level. Helps control metabolism.

E + S----->ES-------->E+P
E=enzyme
S=substrate
P=product
V. Vocabulary

• degradation: substrate is broken down
• synthesis: substrates join to form product

next scribe: Yunsu Y.