Exam 2 '06KEY

Exam 2 '06KEY - Honor code signature: BSCI 201, Spring...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Honor code signature: 1 BSCI 201, Spring 2006, Exam 2 Multiple choice (4 points each) 1. For a disaccharide, what determines whether an a linkage or a ß linkage is formed? a. Orientation of the OH and H groups around carbon 1 b. Orientation of the OH and H groups around carbon 4 c. The pyranose or furanose form of sugars d. The number of carbons in the sugars 2. Compared to glucose, oxidation of which of the following is more important in humans as a source of ATP? a. cellulose b. sucrose c. proteins d. fats 3. A protein with a cleavable signal sequence followed by a stop-transfer sequence is a a. polytopic integral membrane protein b. type III integral membrane protein c. type II integral membrane protein d. type I integral membrane protein 4. In chloroplasts, light absorption, electron transport, and ATP synthesis all occur a. in the stroma b. in the thylakoid lumen c. in or on the thylakoid membrane d. in or on the inner membrane e. with Keanu Reeves in the Matrix 5. Which of the following proteins involved in cotranslational translocation of proteins into the ER membrane is not a GTP-hydrolyzing protein. a. a subunit of the SRP receptor b. elongation factors in ribosome mediated mRNA translation c. P54 subunit of SRP d. Sec61 translocon NAME ______KEY_________ 6. GPI anchored membrane proteins are membrane associated by a. an a -helical protein segment b. direct insertion of a glycine-proline-isoleucine sequence into the exoplasmic leaflet of the bilayer c. a covalently attached lipid d. an unusual sugar that inserts into the exoplasmic leaflet of the bilayer 7. Sorting of protein to mitochondria and chloroplasts is a. cotranslational b. post-translational c. pretranslational d. quasitranslational 8. The resting membrane potential in animal cells depends largely on nongated ____ channels.
Background image of page 1

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

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/07/2008 for the course BSCI 201 taught by Professor Graham during the Spring '07 term at Vanderbilt.

Page1 / 5

Exam 2 '06KEY - Honor code signature: BSCI 201, Spring...

This preview shows document pages 1 - 2. Sign up to view the full document.

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