BCH 261 Study Guide - Midterm Guide: Rossmann Fold, N-Terminus, C-Terminus

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violetfish575

6 Mar 2017

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Part a: multiple choice (33 questions, 66 total marks) Answer each of the following questions by filling in the corresponding answer on the bubble sheet. There is only one correct answer per question. Any answers indicated on this question sheet will not be graded; only the bubble sheet will be graded for this section. Whi(cid:272)h of the follo(cid:449)i(cid:374)g peptides (cid:449)ould (cid:271)e (cid:373)ost fa(cid:448)oured to adopt a(cid:374) -helix secondary structure? (a) laspliaviplelslpkal (b) akalklisrrltirkyhrt (c) ggggalggaggthgggegg (d) Ladladsgealdelasedal (e) ialsliaklvlascslasial: what is the concentration of oh- in an aqueous solution of 125 mm hcl? (a) 1. 2 x 10 -12 m (b) 3. 7 x. A 1. 0l solution of 0. 5 m histidine has a ph of 2. 1. To this solution, you add 1. 0 m of naoh. You perform gel filtration chromatography and collect the first fraction that contains some of these proteins (i. e. it contains the first proteins to elute from this column).

Related Questions

On a page titled Hydrogen Bonding with Water draw the expanded structure of octa-4,6-dien-1-amine. (If the structure already contains any dashed lines, make them solid (non-dashed) covalent bonds for this assignment so that they are not confused with hydrogen bonds)

o Illustrate all the locations where your molecule could form hydrogen bonds with water either as a hydrogen donor or as a target (receiver) of hydrogen bonds from water. Do this by drawing bent water molecules as necessary and representing hydrogen bonds between water and the molecule using dashed lines.

o If your molecule is not capable of forming hydrogen bonds with water explain why not.

On a page titled Polarity and Solubility Predictions draw the structural formula of your molecule (expanded or condensed)

o Circle or highlight all polar portions of the molecule
o Make predictions whether your molecule will be soluble in water or not and explain your rational. Note that there may be no correct answer as often solubility must be tested. Therefore the explanation may be more important the prediction itself.

Organic Chemistry Help Please

Circle the word of phrase that correctly completes the sentece or answers the question. The property that allows water molecule to be attracted to each other is called (cohesion, adhesion). This propert is conferred by (covalent bonds, hydrogen gonds). This property is conferred by ( covalent bond, hydrogen bond). Ice is ( more dense, less dense) than liquid water. Water is polar molecule because of the unequal sharing of( electrons, protons) between the atoms in H2O. Adhesion of water to a surface is through the action of (covalent bond, ionic bonds, hydrogen bonds) between the water and the surace. Water is converted from liquid to vapor through the brakage of ( colvalent, hydrogen) bonds. Which (one) of these substance is not hydrophilic:( cellulose, oil, NaCl). Which of these will not dissolve in water, even though it is polar?(cellulose, oil, NaCl). Which of these is an electrolyte? (cellusose oil, NaCl). A buffer will contain a week acis , weak base, both).

BCH 261 Study Guide - Midterm Guide: Rossmann Fold, N-Terminus, C-Terminus

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