TLS Online TPP Program

#Question id: 1796


Protein-calorie malnutrition does NOT affect:

#Unit 4. Cell Communication and Cell Signaling
  1. Lymphoid tissue

  2. Phagocytosis of bacteria

  3. Cell-mediated immunity

  4. The affinity of antibody responses

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TLS Online TPP Program

#Question id: 27076

#Unit 1. Molecules and their Interaction Relevant to Biology

Choose the correct statement regarding the Spontaneous dipole - induced dipole interaction 
1. Spontaneous dipole - induced dipole interaction are also known as dispersion or London forces related to orientation effect.
2. The potential energy of an induced dipole-induced dipole interaction is depending on the first ionization energy of the molecule
3. Spontaneous dipole - induced dipole interactions are large networks of intermolecular forces between nonpolar and non-charged molecules and atoms (i.e. alkanes, noble gases, and halogens)
4. In Spontaneous dipole - induced dipole interaction a small increase in the radius, would greatly decrease the potential energy of the interaction.

TLS Online TPP Program

#Question id: 27077

#Unit 1. Molecules and their Interaction Relevant to Biology

The van der Waals interaction as a function of interatomic distance r (on x axis) which of the following graph is correctly representing the relation between attractive and repulsive region vs interatomic distance r


TLS Online TPP Program

#Question id: 27078

#Unit 1. Molecules and their Interaction Relevant to Biology

The combined repulsive and attractive van der Waals terms are described by plots of the potential energy as a function of interatomic separation distance



Which of the following's assumptions can be drawn from given graph related phenomenon
1. As the interatomic distance increases attractive forces act dominantly by the factor of 1/r12 
2. As the interatomic distance increases attractive forces act dominantly by the factor of 1/r6 
3. As the interatomic distance decreases repulsive forces act dominantly by the factor of 1/r6 
4. As the interatomic distance decreases repulsive forces act dominantly by the factor of 1/r12 

TLS Online TPP Program

#Question id: 27079

#Unit 1. Molecules and their Interaction Relevant to Biology

The van der Waals interaction as a function of interatomic distance r, then which of the following equation is correct 

TLS Online TPP Program

#Question id: 27080

#Unit 1. Molecules and their Interaction Relevant to Biology

Choose the correct statement about Vander-wall interaction  
1. Van der Waals potential (Evdw) is the sum of all interactions over all atoms
2. Van der Waals potential (Evdw)  is calculated by
3. This type of interaction is often called a 6–12 interaction, or the Leonard Jones potential.
4. Van der Waals forces are extremely weak, especially when compared with other forces influencing protein conformation

TLS Online TPP Program

#Question id: 27569

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following is the most prominent type of interaction found between two molecule of water