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TLS Online TPP Program

#Question id: 320

The aggregation of nonpolar molecules or groups in water is thermodynamically due to the

#Section 2: General Biology

  1. increased entropy of the nonpolar molecules when they associate.

  2. decreased enthalpy of the system.

  3. increased entropy of the water molecules.

  4. very strong van der Waals forces among the nonpolar molecules or groups.

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TLS Online TPP Program

#Question id: 151

#Section 2: General Biology

The isoelectric point of alanine is pH = 6.15. It is mixed with proline (pHCOOH = 2.0; pHNH2= 10.6), and the mixture is placed in an electric field at pH 6.15. Which statement is true?
TLS Online TPP Program

#Question id: 154

#Section 2: General Biology

The peptide bond is which of the following?
TLS Online TPP Program

#Question id: 155

#Section 2: General Biology

Which amino acids are linked in phenylalanylglycine?
TLS Online TPP Program

#Question id: 156

#Section 2: General Biology

What is the N-terminal for the pentapeptide Val-Ile-Glu-Arg-Tyr?
TLS Online TPP Program

#Question id: 157

#Section 2: General Biology

Which of the following statement describes the primary structure of a protein
TLS Online TPP Program

#Question id: 158

#Section 2: General Biology

At the isoelectric pH of a tetrapeptide: