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TLS Online TPP Program

#Question id: 601

In a ping-pong reaction which does not occur?

#Unit 1. Molecules and their Interaction Relevant to Biology

  1. One product is released before a second substrate is bound.

  2. The enzyme covalently binds a portion of the first substrate.

  3. The enzyme is permanently converted to an altered form by the first substrate.

  4. A group is transferred from one substrate to another.

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TLS Online TPP Program

#Question id: 28091

#Unit 6. System Physiology – Plant

Inhibitory agents are given along with their inhibitory system/process 
(a) DCMU -  an inhibitor of PS I 
(b) DCMU -  an inhibitor of PSII 
(c) DBMIB -  an inhibitor of the Cyt b6 f complex
(d) Paraquat -  an inhibitor of PSI
(e) Paraquat -  an inhibitor of PSII
Which of the following is correctly matched
TLS Online TPP Program

#Question id: 28092

#Unit 6. System Physiology – Plant

Component along with their thylakoids percentage in appressed and stroma exposed are given

 Thylakoids (%)
 Component Appressed Stroma exposed 
 1. PSII a. 0 100
 2. PSI b. 90 10
 3. LHCII c. 10 90
 4. ATP synthase d. 85 15
Match them correctly
TLS Online TPP Program

#Question id: 28093

#Unit 6. System Physiology – Plant

Different component are oriented in different manner     
(a) Photosystem II is located predominantly in the stacked regions of the thylakoid membrane
(b) Photosystem I is located predominantly in the stacked regions of the thylakoid membrane
(c) photosystem II and ATP synthase are found in the unstacked regions protruding into the stroma 
(d) photosystem I and ATP synthase are found in the unstacked regions protruding into the stroma
Which of the following is correct
TLS Online TPP Program

#Question id: 28094

#Unit 6. System Physiology – Plant

Which of the following involved in the phosphorylation of LHCII complex when the pool of plastoquinone is in a highly reduced state 
TLS Online TPP Program

#Question id: 28095

#Unit 6. System Physiology – Plant

Which of the following proteins are directly involved in various nonphotochemical quenching (NPQ)    
(a) PSBS
(b) PSBA
(c) PSBB
(d) violaxanthin de‐epoxidase
Which of the following is correct 
TLS Online TPP Program

#Question id: 28096

#Unit 6. System Physiology – Plant

Buildup of a acidic thylakoid ΔpH in the presence of excess light resulting the thylakoid lumen activates an enzyme that converts violaxanthin into zeaxanthin which is