Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 37519
TLS Online TPP Program

#Question id: 27089

Choose which of the following statement regarding the interactions or bond is incorrect

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. in α- helices, the C=O and N-H groups of every interior residue participate in H bonds. -helices, the C=O and N-H groups of every interior residue participate in H bonds.
  2. Hydrophobic Interactions or hydrophobic clustering  entropically drive Protein Folding
  3. It is energetically favorable for an ionized residue to be located in the hydrophobic core of the protein.
  4. In Van der Waals Interactions the attractive forces are due primarily to instantaneous dipole-induced dipole interactions that arise because of fluctuations in the electron charge distributions of adjacent nonbonded atoms.
More Questions
TLS Online TPP Program

#Question id: 998

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following statements apply (applies) to the B oxidation of fatty acids?

1.  The process takes place in the cytosol of mammalian cells.

2.  Carbon atoms are removed from the acyl chain one at a time.

3.  Before oxidation, fatty acids must be converted to their CoA derivatives.

4.  NADP+ is the electron acceptor.

5.  The products of B oxidation can directly enter the citric acid cycle for further oxidation.
TLS Online TPP Program

#Question id: 999

#Unit 1. Molecules and their Interaction Relevant to Biology

The balanced equation for the degradation of CH3(CH2)10COOH via the B-oxidation pathway is:
TLS Online TPP Program

#Question id: 1000

#Unit 1. Molecules and their Interaction Relevant to Biology

 Which of the following is (are) true of the B oxidation of long-chain fatty acids?

1. The enzyme complex that catalyzes the reaction contains biotin.

2. FADH2 serves as an electron carrier.

3. NADH serves as an electron carrier.

4. Oxidation of an 18-carbon fatty acid produces six molecules of propionyl-CoA.

5. Oxidation of a 15-carbon fatty acid produces at least one propionyl-CoA.
TLS Online TPP Program

#Question id: 1001

#Unit 1. Molecules and their Interaction Relevant to Biology

The following fatty acid, in which the indicated carbon is labeled with 14C, is fed to an animal:  14CH3(CH2)9COOH After allowing 30 minutes for fatty acid B oxidation, the label would most likely be recovered in:
TLS Online TPP Program

#Question id: 1002

#Unit 1. Molecules and their Interaction Relevant to Biology

What would be the product of the transamination of the structure shown below? (The unionized forms are shown.)
TLS Online TPP Program

#Question id: 1003

#Unit 1. Molecules and their Interaction Relevant to Biology

The glucose-alanine cycle provides ________.