TLS Online TPP Program

#Question id: 1094


Not all intercellular signals require transduction. Which one of the following signals would be processed without transduction?

#Unit 4. Cell Communication and Cell Signaling
  1. a lipid-soluble signal

  2. a signal that is weakly bound to a nucleotide

  3. a signal that binds to a receptor in the cell membrane

  4. a signal that binds to the extracellular matrix

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TLS Online TPP Program

#Question id: 14959

#Unit 6. System Physiology – Plant

In addition to self assembly, enzymes may facilitate wall assembly. A prime candidate for enzyme-mediated wall assembly is-

TLS Online TPP Program

#Question id: 14958

#Unit 6. System Physiology – Plant

Where the matrix polysaccharides are synthesized by

TLS Online TPP Program

#Question id: 14957

#Unit 6. System Physiology – Plant

the xylan backbone may be synthesized by a distinctly different group of synthases, including synthases named;

TLS Online TPP Program

#Question id: 14956

#Unit 6. System Physiology – Plant

Where is the catalytic domain of cellulose synthase located?

TLS Online TPP Program

#Question id: 14952

#Unit 6. System Physiology – Plant

Some are thin areas where the primary wall is not covered by a secondary wall and are populated with plasmodesmata known as

TLS Online TPP Program

#Question id: 14947

#Unit 6. System Physiology – Plant

 Nonenzymatic proteins whose exact functions are uncertain. Such proteins may be localized in the walls of specific cell types or more widespread
cell wall protein                                                                   Tissue localization
      A) HRGP (hydroxyproline rich glycoprotein)              i) Xylem, fibers, cortex, root hairs
      B) AGP (arabinogalactan protein) ii) Primary xylem and phloem
     C) PRP (proline-rich protein)                                          iii) Cambium, vascular parenchyma
     D) GRP (glycine-rich protein)                                  iv) Varied cell-specific expression
Which of the following combinations of nonenzymatic protein with its correct location?