TLS Online TPP Program

#Question id: 29506


The active principle in foxglove (Digitalis sp.) is cardinolide digitoxin  is a
a. cardiac glycoside 
b. that activate ATPase activity 
c. that inhibits ATPase activity 
d. can increase myocardial contraction

Which of the following is not true regarding digitoxin

#Unit 6. System Physiology – Plant
  1. a only
  2. b only
  3. a, b, & d
  4. b, c, & d
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TLS Online TPP Program

#Question id: 28071

#Unit 6. System Physiology – Plant

During Water splitting/ oxygen evolution P680+ is directly reduced by

TLS Online TPP Program

#Question id: 28072

#Unit 6. System Physiology – Plant

During photosynthesis water splitting takes place in

TLS Online TPP Program

#Question id: 28073

#Unit 6. System Physiology – Plant

Which of the following is correct regarding ATP & NADPH synthesis and its physiological environment 
(a) ATP & NADPH is synthesized in Stroma
(b) ATP & NADPH is synthesized in Lumen
(c) STROMA is alkaline and similar to Mitochondrial matrix
(d) STROMA is acidic and similar to Mitochondrial matrix
Which of the following is correct

TLS Online TPP Program

#Question id: 28074

#Unit 6. System Physiology – Plant

P680 & P700 exist in various state, and each state have their own different properties 
(a) P680    -   absorbs light  
(b) P680+   -     strongest oxidant 
(c) P680  -     strongest reductant 
(d) P700   -    absorbs light 
(e) P700* -     strongest reductant 
Which of the following is correct 

TLS Online TPP Program

#Question id: 28075

#Unit 6. System Physiology – Plant

P680 & P700 exist in various state such as reductant, strongest reductant, oxidant and strongest oxidant 

 Column 1 Column 2 Properties
 A. P680 I. P700 U. reductant
 B. P680+ II. P700+ V. strongest reductant 
 C. P680* III. P700* W. oxidant
 X. strongest oxidant
 Match then correctly

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) NADPHformation is reduction reaction takes place in stroma