iWriteGigs

Fresh Grad Lands Job as Real Estate Agent With Help from Professional Writers

People go to websites to get the information they desperately need.  They could be looking for an answer to a nagging question.  They might be looking for help in completing an important task.  For recent graduates, they might be looking for ways on how to prepare a comprehensive resume that can capture the attention of the hiring manager

Manush is a recent graduate from a prestigious university in California who is looking for a job opportunity as a real estate agent.  While he already has samples provided by his friends, he still feels something lacking in his resume.  Specifically, the he believes that his professional objective statement lacks focus and clarity. 

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Manush’s story shows the importance of using powerful keywords to his resume in landing the job he wanted.

L5 3D Structure of Proteins Part 1 of 2

Navigation   » List of Schools  »  West Los Angeles College  »  Chemistry  »  Chem 221 – Biochemistry for Science Majors  »  Fall 2021  »  L5 3D Structure of Proteins Part 1 of 2

Need help with your exam preparation?

Below are the questions for the exam with the choices of answers:

Question #1
A  The hydrophilic exterior
B  The hydrophilic interior
C  The hydrophobic interior
D  The hydrophobic exterior
Question #2
A  Beta-pleated sheets
B  R-group interactions
C  The linear sequence of specific amino acids
D  Alpha-helices
E  The hydrophobic effect
Question #3
A  A polypeptide chain 3-D structure
B  How the polypeptide chains arrange in space
C  The four parts of a protein’s amino acid sequence
D  The layout of alpha-helices and beta-sheets
E  The sequence of nucleic acids
Question #5
A  Ionic
B  Hydrophobic
C  disulfide
D  hydrogen bonding
Question #6
A  alkynes
B  alkanes
C  hydrocarbons
D  alkenes
Question #7
A  a covalent ether bond
B  a covalent amide bond
C  a covalent bond
D  an ether bond
E  an amide bond
Question #8
A  2 molecules of water
B  4 molecules of water
C  5 molecules of water
D  3 molecules of water
Question #9
A  Neither globular nor fibrous proteins
B  Globular proteins
C  Both globular fibrous proteins
D  Fibrous proteins
Question #10
A  The hydrophilic exterior
B  The hydrophilic interior
C  The hydrophobic interior
D  The hydrophobic exterior
Question #13
A  phenylalanine
B  aspartic acid
C  tryptophan
D  glycine
E  alanine
Question #15
A  Releases 3 water molecules
B  Releases 4 water molecules
C  Requires 3 water molecules
D  Requires 4 water molecules
Question #16
A  Randomly interspersed throughout to protein
B  On the surface of the protein
C  Localized to the N-terminus of the protein
D  Localized to the C-terminus of the protein
E  Buried in the center of the protein
Question #19
A  glutamic acid
B  alanine
C  cysteine
D  glycine
Question #20
A  the function of all proteins in an organism
B  the secondary structure of a protein
C  the primary structure of the hemoglobin protein
D  the primary structure of the myoglobin protein
Question #22
A  All proteins have a quaternary structure
B  A protein’s function depends on its spatial conformation
C  pH does not change the protein conformation
D  Disulfide bridges primarily maintain secondary structures, as opposed to tertiary
Question #23
A  A protein chain
B  The end of a protein with a free amine group
C  The end of a protein with a free carboxylic acid group
D  The first amino acid with the abbreviation ‘N’ in the protein
Question #24
A  The peptide bond is not planar, it can actually rotate relatively freely
B  Partial double bond character of the peptide bond
C  Hydrogen bonding between amino acid side chains and water
D  The fully double bonded peptide bond
E  Electronegativity differences between nitrogen and carbon
Question #26
A  releases 2 molecules of water
B  requires 2 molecules of water
C  releases 3 molecules of water
Question #29
A  is weaker than an ordinary single bond.
B  still isn’t completely understood by chemists.
C  has partial double bond character.
Question #30
A  planar, but rotates to three preferred dihedral angles.
B  not cleavable by hydrolysis.
C  nonpolar, and fixed in a trans conformation
D  nonpolar, but rotates to three preferred dihedral angles.
E  planar, and usually found in a trans configuration.
Question #31
A  3 amino acids and 3 peptide bonds
B  3 amino acids and 4 peptide bonds
C  3 amino acids and 1 peptide bond
D  3 amino acids and 2 peptide bonds
Question #32
A  Metallic bond
B  Hydrogen bond
C  Covalent bond
D  ionic bond
Question #33
A  Hydroxyl group is lost from its carboxyl group of one amino acid and a hydroxyl group is lost from its amino group of another amino acid
B  Hydrogen atom is lost from its carboxyl group of one amino acid and a hydrogen atom is lost from its amino group of another amino acid
C  Hydroxyl group is lost from its carboxyl group of one amino acid and a hydrogen atom is lost from its amino group of another amino acid
D  Hydrogen atom is lost from its carboxyl group of one amino acid and a hydroxyl group is lost from its amino group of another amino acid
Question #40
A  have their hydrophilic side chains are on the outside, exposed to the solvent, water.
B  All of these are correct
C  are roughly spherical in shape
D  have their hydrophobic amino acid side chains are in the interior of the molecule
E  are water soluble