Which type of amino acid would be found on the outside of a portion of a protein embedded in the membrane (up close to the fatty acid tails)? Select one: O a. a special amino acid like glycine or proline Ob. a polar amino acid like serine c. a hydrophobic amino acid like valine Od. a charged amino acid like lysine O e. any of the above, with no preference Clear my choice

Which type of amino acid would be found on the outside of a portion of a protein embedded in the membrane (up close to the fatty acid tails)? Select one: O a. a special amino acid like glycine or proline Ob. a polar amino acid like serine c. a hydrophobic amino acid like valine Od. a charged amino acid like lysine O e. any of the above, with no preference Clear my choice

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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On 4. Below is a polypeptide with an unknown number of amino acids. On the diagram below: a. Circle EVERY peptide bond b. Circle and number each amino acid from 1, 2, 3, and so on; from left to right c. Label each amino acid as polar, non-polar, or electrically charged d. Label the N-terminus and C-terminus e. Select three pairs of amino acids that could potentially interact to influence tertiary structure AND state the bond/force/interaction type involved in each pair. H₂N-CH-C-N-CH-C- CH₂ CH₂ CH₂ NH CINH NH₂ Accessibility: Investigate CH₂ -NH -CH-C-N- CH-OH CH3 -CH-C-N CH₂ CH₂ -N- OH CHIC-OH CH₂ OH
The side chain of which of the following amino acids is most hydrophilic a. Phe b. Val c. Leu d. Cys e. Ala
Part A Drag each amino acid into the box corresponding to its classification. Reset Help 中 H NH3 CH2 CH2 CH2 CH2 HN-C -COO" HN-Ç-CO0 CH2 CH2 CH2 CH2 甲 H-C-CH3 H3N-C-COO 甲 NH2 ČH3 H3N-C-coo H Polar non-charged Polar negatively-charged Non-polar Polar positively-charged
Give explanation of all four otherwise leave it
The quaternary structure of a protein results from (choose the best answer) O a mutation O a prion such as the one that causes the scrapie disease in sheep O a combination of multiple lipid subunits a combination of polysaccharide subunits O a combination of two or more protein subunits
Which of the amino acid side-chains would you expect to be protonated (i.e. has not lost its proton) under neutral pH conditions? Include reasons supporting your prediction.
Select ALL statements that are true about the isoelectric point (pI) of a protein a.Protein carries a net negative charge at its pIb.There is no net charge on the protein at its pIc.Above its pI, a protein is negatively chargedd.pI depends on the amino and carboxylic acid content of a protein
A new amino acid is found with the alpha N and backbone COOH pKa's the same as histidine but with a neutral side chain. What is the isoelectric point of this new amino acid?
How to draw titration of amino acids ？what happen when ph increase from low to high？ 1. what does it means when pka and ph are equal？ 2. Did I calculate p1 correctly？？ 3. Does cysteine lose H in SH ？should it be positively charged or negatively charged after lose H and why？？
answe the second part