TLS Online TPP Program

#Question id: 27573


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

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. c-iv, 2-d-iii, 3-b-ii, 4-a-i
  2. 1-d-iv, 2-c-ii, 3-b-iii, 4-a-i
  3. 1-d-iv, 2-c-iii, 3-b-ii, 4-a-i
  4. 1-d-iv, 2-c-iii, 3-b-i, 4-a-ii

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TLS Online TPP Program

#Question id: 10227

#Unit 6. System Physiology – Plant

The evaporation of water requires energy, when water evaporates from a leaf (transpiration), it removes large amounts of heat from the leaf and thus cools it. The human body is cooled by the same principle, commonly known as

TLS Online TPP Program

#Question id: 10228

#Unit 6. System Physiology – Plant

Photorespiration and the quantum yield differ between C3 and C4 photosynthesis, with changes particularly noticeable as temperatures vary quantum yield for photosynthesis as a function of leaf temperature in C3 plants and C4 plants. Following are some statements  based on this study.

 a.) In the C4 plants the quantum yield remains constant with temperature, reflecting low rates of photorespiration

 b.) At lower temperatures the quantum yield of C3 plants is higher than that of C4 plants

c.) C3 photosynthesis is more efficient at lower temperatures

 d.) At higher temperatures the quantum yield of C3 plants is higher  than that of C4 plants

 Which one of the following combination of above statements is correct?

TLS Online TPP Program

#Question id: 10229

#Unit 6. System Physiology – Plant

Comparing such a plot for C3 and C4 plants reveals differences between the two pathways of carbon metabolism, which of the following given statements will be incorrect?

TLS Online TPP Program

#Question id: 10250

#Unit 6. System Physiology – Plant

Glycolysis involves a series of reactions catalyzed by enzymes located in,

TLS Online TPP Program

#Question id: 10251

#Unit 6. System Physiology – Plant

Initial phase of glycolysis, substrates from different sources are channeled into triose phosphate. For each molecule of sucrose that is metabolized, four molecules of triose phosphate are formed. This process how much requires ATP input?

TLS Online TPP Program

#Question id: 10252

#Unit 6. System Physiology – Plant

When molecular oxygen is unavailable—for example, in plant roots in flooded soils—glycolysis can be the main source of energy for cells, How?