TLS Online TPP Program

#Question id: 11800


There are at least three different types of companion cells in the minor veins of mature, exporting leaves. Which of the following statements about these companion cells is CORRECT?

 a.) transfer cells are transport sugars enter the apoplast during the movement of sugars from mesophyll cells to sieve elements. Transfer cells transport sugars from the apoplast to the symplast of the sieve elements and companion cells in the source.

 b.) the numerous mitochondria in companion cells may supply energy as ATP to the sieve elements

 c.) Ordinary companion cells can function in either symplastic or apoplastic short-distance transport in source leaves, depending in part on plasmodesmatal frequencies

 d.) Intermediary cells, by contrast, function in symplastic transport of sugars from mesophyll cells to sieve elements

#SCPH05 I Biotechnology
  1. A, B and D            
  2. B, C and D
  3. A, C and D
  4. A, B, C and D
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TLS Online TPP Program

#Question id: 846

#SCPH06 I Botany

The maintenance of the steady-state collection of active cellular proteins required under a particular set of conditions, called ______.

TLS Online TPP Program

#Question id: 847

#SCPH01 Biochemistry

A proposed pathway for the action of E.coli chaperonins  are groEL and groES.groEL exist in trans and cis structure transferring with its bound ATP now become the cis ring once the groES  bound to it ATP hydrolysis takes place and improperly folded protein get properly folded, total number of  ATP molecules are required to per folding cycle;

TLS Online TPP Program

#Question id: 847

#SCPH05 I Biotechnology

A proposed pathway for the action of E.coli chaperonins  are groEL and groES.groEL exist in trans and cis structure transferring with its bound ATP now become the cis ring once the groES  bound to it ATP hydrolysis takes place and improperly folded protein get properly folded, total number of  ATP molecules are required to per folding cycle;

TLS Online TPP Program

#Question id: 847

#SCPH06 I Botany

A proposed pathway for the action of E.coli chaperonins  are groEL and groES.groEL exist in trans and cis structure transferring with its bound ATP now become the cis ring once the groES  bound to it ATP hydrolysis takes place and improperly folded protein get properly folded, total number of  ATP molecules are required to per folding cycle;

TLS Online TPP Program

#Question id: 848

#SCPH01 Biochemistry

Which of the brain diseases is not caused by the misfolding of brain proteins in mammals

TLS Online TPP Program

#Question id: 848

#SCPH05 I Biotechnology

Which of the brain diseases is not caused by the misfolding of brain proteins in mammals