TLS Online TPP Program

#Question id: 9284


Following are some facts regarding spatial separation of PSI and PSII. Which one would be INCORRECT?

#Unit 6. System Physiology – Plant
  1. PSII reaction centres feed reducing equivalents into a common intermediate pool of soluble electron carriers while The PSI reaction centres remove the reducing equivalents from the common pool
  2. Most commonly, the ratio of PSII to PSI is about 1.5:1, but it can change when plants are grown in different light conditions
  3. Most measurements of the relative quantities of photosystems I and II have shown that there is an excess of photosystem II in chloroplasts
  4. Separation implies that one or more of the electron carriers that function between the photosystems diffuses from the grana region of the membrane to the stroma region, where electrons are delivered to photosystem II
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TLS Online TPP Program

#Question id: 10559

#Unit 6. System Physiology – Plant

which gives water a high tensile strength,

TLS Online TPP Program

#Question id: 10560

#Unit 6. System Physiology – Plant

If a tiny gas bubble forms in a column of water under tension, the gas bubble may expand indefinitely, with the result that the tension in the liquid phase collapses, it can have a devastating effect on water transport through the xylem a phenomenon known as

TLS Online TPP Program

#Question id: 10561

#Unit 6. System Physiology – Plant

Integral membrane proteins that form water-selective channels across the membrane, Because water diffuses faster through such channels than through a lipid bilayer

TLS Online TPP Program

#Question id: 10562

#Unit 6. System Physiology – Plant

The direction and rate of water flow across a membrane are determined by

TLS Online TPP Program

#Question id: 10563

#Unit 6. System Physiology – Plant

The rate of diffusion depend upon

TLS Online TPP Program

#Question id: 10564

#Unit 6. System Physiology – Plant

The term Ys , called the solute potential or the osmotic potential, represents the effect of dissolved solutes on water potential,

a) The mixing of solutes and water reduces the disorder of the system and thereby lowers free energy

b) Solutes reduce the free energy of water by diluting the water

c) The mixing of solutes and water increases the disorder of the system and thereby lowers free energy

d) Solutes increases the free energy of water by diluting the water

 Which one of the following statements are INCORRECT?