{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

lecture0222audio - pH of digestive juice is normally acid...

Info icon This preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Enzymes – pH pH is critical since: pH determines [H + ] Some R groups can become  charged/uncharged through  addition/removal of H +  ions.  Charge on R-groups can determine  secondary (to a small extent) and tertiary  enzyme structure AND Proton exchange and interaction of  charged groups is sometimes an  intermediate step in catalysis.
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Enzymes - pH Enzymes are tailored to function  optimally at an appropriate pH  e,g, digestive enzymes:  pepsin - stomach - most active at pH3 trypsin - intestine - most active at pH8.
Image of page 2
Image of page 3

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: pH of digestive juice is normally acid in stomach, alkaline in intestines Enzymes – temperature Temperature is also critical since: As temperature increases, more substrate molecules gain sufficient energy from thermal sources to overcome E a - so rate at first increases with temperature. BUT at high temperatures, enzyme denatures So there is also an optimal; temperature for each enzyme tailored to the enzymes/organisms environment. Figure 3.17...
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern