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TLS Online TPP Program

#Question id: 1075

The clustered, regularly interspaced short palindromic repeats (CRISPR) system in bacterial cells has been called the “immune” system of bacteria. CRISPR protect bacteria from a repeat infection from the same phage because bacterial cells

#Unit 4. Cell Communication and Cell Signaling

  1. recognize proteins on the surface of the phage and secrete enzymes that digest the phage.

  2. recognize proteins on the surface of the phage and secrete proteins that block the binding of the phage.

  3. integrate fragments from the phage DNA in their own chromosomes and target for destruction any DNA that contains the same fragments in the future.

  4. modify the attachment sites for the phages so that new infections cannot take place.

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TLS Online TPP Program

#Question id: 29417

#Unit 6. System Physiology – Plant

The first committed enzymatic step in the Calvin cycle is the reaction of CO2 and water with a five-carbon acceptor molecule is catalyzed by?
TLS Online TPP Program

#Question id: 29418

#Unit 6. System Physiology – Plant

Phases of the Calvin cycle and their catalyzing enzymes and class is given 
(a) Carboxylation is catalyzed by rubisco 
(b) Carboxylation is catalyzed by PGK and GAPDH
(c) Reduction of 3-phosphoglycerate is catalyzed by PGK and GAPDH
(d) Regeneration is catalyzed by isomerase, aldolases, and epimerases
Choose which of the following is INCORRECT
TLS Online TPP Program

#Question id: 29419

#Unit 6. System Physiology – Plant

The fixation of three molecules of CO2 into one molecule of triose phosphate requires
TLS Online TPP Program

#Question id: 29420

#Unit 6. System Physiology – Plant

Prior to CO2 fixation, Activation of RUBISCO takes place that involves

(a) Two protons are released 

(b) Binding of CO2 molecule on NH2 group of lysine 

(c) Binding of Zn molecule on NH2 group of Alanine

(d) Binding of Mg2+ concentration upon illumination

Which of the following processes are involves in activation of RUBISCO
TLS Online TPP Program

#Question id: 29421

#Unit 6. System Physiology – Plant

Large subunit of rubisco is encoded in_
TLS Online TPP Program

#Question id: 29422

#Unit 6. System Physiology – Plant

CO2 can function as in the reaction catalyzed by rubisco

a) photo quencher

(b) an activator 

(c) a substrate 

(d) Divertor

Which of the following is true