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TLS Online TPP Program

#Question id: 9270

In the lowest excited state, the excited chlorophyll has four alternative pathways for disposing of its available energy which of the statement of alternative pathway would be INCORRECT?

#Unit 6. System Physiology – Plant
  1. Excited chlorophyll can re-emit a photon and thereby return to its ground state—a process known as fluorescence, When it does so, the wavelength of fluorescence is slightly longer than the wavelength of absorption
  2. The excited chlorophyll can return to its ground state by directly converting its excitation energy into heat, with the emission of a photon
  3. Chlorophyll may participate in energy transfer, during which an excited chlorophyll transfers its energy to another molecule
  4. The photochemistry, in which the energy of the excited state causes chemical reactions to occur, the photochemical reactions of photosynthesis are among the fastest known chemical reactions
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TLS Online TPP Program

#Question id: 29481

#Unit 6. System Physiology – Plant

Three main classes of mutations affecting plant height have been selected in which Mutants with a constitutive gibberellin response known as 
TLS Online TPP Program

#Question id: 29482

#Unit 6. System Physiology – Plant

In the absence of gibberellin, the DELLA proteins
a) positively regulate GID1, GA20ox, and GA3ox
b)negatively regulate GA2ox
c) positively regulate GA2ox
d)negatively regulate GID1, GA20ox, and GA3ox
Which of the following is correct
TLS Online TPP Program

#Question id: 29483

#Unit 6. System Physiology – Plant

Which of the following are defined as compounds that have biological activities similar to those of trans-zeatin
TLS Online TPP Program

#Question id: 29484

#Unit 6. System Physiology – Plant

Physiological action of Cytokinins is given
a. Induce cell division in callus cells in the presence of an auxin 
b. Promote bud or root formation from callus cultures 
c. Delay senescence of leaves
d. Promote expansion of dicot cotyledons

Which of the following is correct
TLS Online TPP Program

#Question id: 29485

#Unit 6. System Physiology – Plant

Which of the following is not an example of Isoprenoid cytokinins
TLS Online TPP Program

#Question id: 29486

#Unit 6. System Physiology – Plant

Which of the following is examples of Aromatic cytokinins 
a. ortho-Topolin (oT), meta-Topolin (mT), Benzyladenine (BA
b. ortho-Methoxytopolin, meta-Methoxytopolin
c. trans-Zeatin (tZ), Dihydrozeatin (DZ)
d. cis-Zeatin, trans-Zeatin (tZ)

Which of the following is correct