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TLS Online TPP Program

#Question id: 11797

A living cytoplasmic connection penetrate the walls between sieve tube elements and their companion cells; which are often complex and branched on the companion cell side, known as

#Unit 6. System Physiology – Plant
  1. Casparian strip
  2. Tracheids
  3. Plasmodesmata
  4. tonoplast
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TLS Online TPP Program

#Question id: 27570

#Unit 1. Molecules and their Interaction Relevant to Biology

Some of the following's statement is made regarding the Van der Waals interaction

a. Van der Waals interaction is the weakest of all intermolecular attractions between molecules.

b. The van der Waals interaction primarily depends on interatomic distance.

c. Fundamental Behind VWI is DIPOLE 

d. Fundamental Behind VWI is orbital overlapping

Choose which of the above is incorrect
TLS Online TPP Program

#Question id: 27571

#Unit 1. Molecules and their Interaction Relevant to Biology

As atom "A" approaches, the electrons of atom "B" will be attracted by the positive end of atom "A". As a result, the electrons of atom "B" will migrate to the left side and make the left side slightly negative, such given condition leads to the formation of
TLS Online TPP Program

#Question id: 27572

#Unit 1. Molecules and their Interaction Relevant to Biology

Nitrogenous Base pairs & aromatic amino acids stack together through pi, pi-electronic interactions, These stacking interactions are best example of
TLS Online TPP Program

#Question id: 27573

#Unit 1. Molecules and their Interaction Relevant to Biology

Interaction type, Distance dependence of potential energy, and Typical energy (kJ mol-1) are given

Interaction typeDistance dependence of potential energyTypical energy (kJ mol⁻¹)
1. Ion-iona. 1/r6i. 2
2. Ion-dipoleb. 1/r6ii. 15
3. Dipole-dipole (rotating polar molecule)c. 1/r2iii. 0.3
4. London (dispersion)d. 1/riv. 250

Match them correctly
TLS Online TPP Program

#Question id: 27574

#Unit 1. Molecules and their Interaction Relevant to Biology

Misplaced Dispersion forces are responsible for

a. Sickle-Cell Anemia

b. Alzheimer's disease

c. CFTR

d. Huntington disease

Choose which of the above set of diseased caused by Misplaced Dispersion
TLS Online TPP Program

#Question id: 27575

#Unit 1. Molecules and their Interaction Relevant to Biology

Which kind of interactions occur between the side chains of oppositely charged residues as well as between the NH3+ and COO− groups at the ends of polypeptide