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TLS Online TPP Program

#Question id: 10140

Following are certain statements regarding activated and inactivated form of Rubisco, Which one is INCORRECT?

#Section 2: General Biology
  1. The naturally occurring inhibitor 2-carboxyarabinitol 1-phosphate prevent activation of Rubisco
  2. plant rubisco active site contains His, Asp, Glu and Lys 201 , is a carbamoylated Lys 201 side chain with a bound Mg 2+ ion and is absoluetly require for its activation
  3. The increase in both pH and concentration of Mg2+ facilitates the formation of the (E–NH 3 + – CO2 – • Mg2+) complex, which represents the catalytically active form of rubisco
  4. The tight binding of sugar phosphates, such as ribulose 1,5-bisphosphate (RuBP), either impedes the production of the E–carbamate adduct or blocks the binding of substrates to the carbamylated enzyme
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TLS Online TPP Program

#Question id: 318

#Section 2: General Biology

Attractions of oppositely charged functional groups of proteins are sometimes called ________.
TLS Online TPP Program

#Question id: 5922

#General Aptitude

The last day of a Century year can not be:
TLS Online TPP Program

#Question id: 3856

#Section 3: Genetics, Cellular and Molecular Biology

In eukaryotes, the conserved element closest to the transcription start site is called the:
TLS Online TPP Program

#Question id: 2060

#Section 2: General Biology

An animal cell lacking carbohydrates on the external surface of its plasma membrane would likely be impaired in which function?
TLS Online TPP Program

#Question id: 2531

#Section 3: Genetics, Cellular and Molecular Biology

The specific linkages between sugar rings, including the specific carbons that are linked together and the configuration of the linkage, are important for the properties of the polysaccharide;

 I) Amylose                             a)β(1,3)-linkages                                  

 II) Cellulose                            b) β (1,4)-linkages

  III) Callose                             c) α(1,4)-linked

                                                 d) α (1,3)-linkages

Which of the following linkage combination is correct linkages of the polysaccharides?