2. Aim: Why are Enzymes necessary for our survival? Por que son las enzimas necesarias para la sobrevivencia? A + B C C

3. What role do enzymes play in our bodies? Que trabajo desempenan las enzimas en nuestro cuerpo? A + BC Enzymes speed up chemical reactions Las enzimas aumentan la velocidad de las reacciones quimicas en nuestro cuerpo.

4. Let’s Review Chemical Reactions: A + B C or C A + B Raw Materials Products

5. What Reaction is this? Que reaccion es esta? A + B AB + H 2 O Dehydration Synthesis Sintesis mediante Desidratacion Enzyme If an enzyme is added to the reaction, then it will speed up the reaction. Si una enzima se agrega a la reacción, acelerará la reacción. In other words, we will produce AB more quickly. En otras palabras se producira AB mas rapido

6. What is a Catalyst? Que es un catalizador? A catalyst is any substance that speeds up a chemical reaction without itself being changed. Un catalizador es cualquier sustancia que acelera una reacción química sin cambiarse a si mismo. Las enzimas son catalizadores organicos porque estan compuestas de proteinas. Why are enzymes called organic catalysts? They are PROTEINS!!

7. What are some important reactions that enzymes need to speed up? Digestion Synthesis PhotosynthesisCell Respiration

8. How do enzymes work? Como funcionan las enzimas? A + B AB ENZYME AB Enzymes bind to the substance(substrate)so the chemical reaction can take place. Las enzimas se unen a la sustancia (sustrato) para que la reacción química puede ocurrir.

9. What are Substrates and Active Sites? AB A + B AB Substrates-are the substances that bind to the enzyme Los sustratos son las sustancias que se unen a la enzima Active Site- is the place on the enzyme where the substrates bind Sitio activo - es la parte de la enzima donde se unen los sustratos

10. Think of enzymes and substrates as a lock and key Piensa en las enzimas y sustratos como una cerradura y una llave Substrate Sustrato Enzyme Active Site Enzymes are specific! Las enzimas son esecificas!

11. Enzyme-Substrate Complex Complejo enzima-sustrato Is formed when the substrate is bound to the enzyme Se forma cuando el sustrato esta pegado de la enzima Enzyme enzima Substrate sustrato

12. What do you think determines the shape of enzymes? Que determina la forma de una enzima? Enzyme/ Enzimas 1)The sequence (order) of amino acids in a protein determine its shape 2) The shape of a protein determines its function 1)La secuencia (orden) de los aminoácidos en una proteína determina su forma 2) la forma de una proteína determina su función

13. A-B + H 2 O A + B Enzyme What reaction is this? Hydrolysis The enzyme doesn’t change, it can be reused! La enzima no cambia, puede ser reutilizada.

14. Some common enzymes PROTEIN AMINO ACIDS protease Hydrolysis

15. Can you ID the substrate, product, enzyme, active site, & enzyme substrate complex? Substrate Product Enzyme Active Site Enzyme – Substrate Complex