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TLS Online TPP Program

#Question id: 11843

During an experiment Six-day-old pea seedlings were grown in the dark in the presence of 10 ppm (parts per million).  Firstly, Grown seedling treated with ethylene and secondly grown seedling left untreated. What will be the conclusion has been drawn from this experiments?      

#Unit 6. System Physiology – Plant
  1. The treated seedlings show triple response , while untreated grow normally
  2. ethylene response not generated, Both seedling grows normally
  3. treated and untreated both seedlings show radial swelling, elongation of the epicotyl, and horizontal growth of the epicotyl
  4. ethylene treated seedling shows radial swelling, elongation of the epicotyl and fruit ripening while untreated show inhibition of elongation of the epicotyl
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TLS Online TPP Program

#Question id: 28076

#Unit 6. System Physiology – Plant

Choose the correct statement regarding Water splitting 
(a) Water splitting is oxidation reaction takes place in lumen
(b) Water splitting takes place at - reduction potential
(c) Water splitting takes place at + reduction potential
(d) NADPH+ formation is reduction reaction takes place in stroma
TLS Online TPP Program

#Question id: 28077

#Unit 6. System Physiology – Plant

The catalytic site for water oxidation in lumen is a
TLS Online TPP Program

#Question id: 28078

#Unit 6. System Physiology – Plant

Chlorophyll functions on the phenomenon of absorption of light and shows excitation of electron
(a) Chlorophyll absorbs blue or red light 
(b) blue light absorption resulting in a higher excited state 
(c) red light absorption resulting in a higher excited state 
(d) From IInd exited state returning ground state heat will be observed from blue and fluorescence from red light
Which of the following is incorrect
TLS Online TPP Program

#Question id: 28079

#Unit 6. System Physiology – Plant

In molecules, two types of excited states can exist singlet and triplet  
(a) The singlet state is relatively long‐lived than triplet and have parallel spin
(b) The singlet state is relatively short‐lived than triplet and have antiparallel spin
(c) The triplet state is relatively long‐lived than singlet and have two parallel spin
(d) The triplet state is relatively long‐lived than singlet and have two anti-parallel spin
Which of the following is correct 
TLS Online TPP Program

#Question id: 28080

#Unit 6. System Physiology – Plant

Excitation of chlorophyll RC has various ways to dissipate energy, which of the following is not a way to dissipate energy 
a. Heat
b. Fluorescence
b. energy transfer
d. Photochemistry via charge separation

Which of the following is correct 
TLS Online TPP Program

#Question id: 28081

#Unit 6. System Physiology – Plant

In the phenomenon of transfer of electron in photosystem have various time order

(a) Splitting of H2O – 1ms

(b) Transfer of electron from Mn – Z – in Microseconds 

(c) Transfer of electron from Z – P680 – in Nanosecond 

(d) 1st photochemistry - picoseconds

Which of the following is correct