TLS Online TPP Program

#Question id: 1733


The early increase in phospholipase Cγ1 activity following T-cell stimulation:

#SCPH05 I Biotechnology
  1. Represents a sensitive regulatory negative feedback control mechanism

  2. Dephosphorylates protein tyrosine kinase inhibitors

  3. Accelerates hydrolysis of phosphatidylinositol diphosphate

  4. Accelerates hydrolysis of diacylglycerol

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TLS Online TPP Program

#Question id: 561

#SCPH06 I Botany

Enzyme X exhibits maximum activity at pH = 6.9.  X shows a fairly sharp decrease in its activity when the pH goes much lower than 6.4.  One likely interpretation of this pH activity is that:

TLS Online TPP Program

#Question id: 561

#SCPH28 | Zoology

Enzyme X exhibits maximum activity at pH = 6.9.  X shows a fairly sharp decrease in its activity when the pH goes much lower than 6.4.  One likely interpretation of this pH activity is that:

TLS Online TPP Program

#Question id: 562

#SCPH01 Biochemistry

Phenyl-methane-sulfonyl-fluoride (PMSF) inactivates serine proteases by binding covalently to the catalytic serine residue at the active site; this enzyme-inhibitor bond is not cleaved by the enzyme.  This is an example of what kind of inhibition?

TLS Online TPP Program

#Question id: 562

#I Life Science/ Life Sciences Group – I-V

Phenyl-methane-sulfonyl-fluoride (PMSF) inactivates serine proteases by binding covalently to the catalytic serine residue at the active site; this enzyme-inhibitor bond is not cleaved by the enzyme.  This is an example of what kind of inhibition?

TLS Online TPP Program

#Question id: 562

#SCPH05 I Biotechnology

Phenyl-methane-sulfonyl-fluoride (PMSF) inactivates serine proteases by binding covalently to the catalytic serine residue at the active site; this enzyme-inhibitor bond is not cleaved by the enzyme.  This is an example of what kind of inhibition?

TLS Online TPP Program

#Question id: 562

#SCPH06 I Botany

Phenyl-methane-sulfonyl-fluoride (PMSF) inactivates serine proteases by binding covalently to the catalytic serine residue at the active site; this enzyme-inhibitor bond is not cleaved by the enzyme.  This is an example of what kind of inhibition?