BIBC 102 HW 3

BIBC 102 HW 3 - Metabolic Biochemistry Summer 2010 Homework...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Metabolic Biochemistry Name_____________ Summer 2010 Homework 3 (40 pts.) Section____________ 1) (7 pts.) Use the diagram below to answer the following questions about the reaction mechanism for the pyruvate dehydrogenase complex. a. On hydroxyethyl-TPP, circle the chemical group that gets oxidized in the following step. b. Which enzyme catalyzes the oxidation step in part (a) above? E 1 or E 2 or E 3 c. Draw the structure of the chemical group that is attached to lipoyllysine here. d. Is this form of lipoyllysine oxidized or reduced? ___________ e. Write in both forms of the missing electron carrier in the box (not the structure). f. Is this form of lipoyllysine oxidized or reduced? ___________ g. This kind substrate transfer through multiple enzyme subunits and their coenzymes is known as _________________. C. D. E. F.
Background image of page 1

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

View Full DocumentRight Arrow Icon
2) (8 pts.) A test electrode contains a solution of ubiquinone, with both the fully oxidized and fully reduced forms, at 1 M concentration each. A circuit is formed from this electrode using a KCl solution salt bridge with a standard hydrogen electrode (25°C, 1 ATM H 2 , 1 M H + ). When this circuit is complete, a current of electrons pass to the ubiquinone test cell
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 4

BIBC 102 HW 3 - Metabolic Biochemistry Summer 2010 Homework...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online