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TLS Online TPP Program

#Question id: 1095

What does it mean to say that a signal is transduced?

#XL - Q Biochemistry

  1. The signal enters the cell directly and binds to a receptor inside.

  2. The physical form of the signal changes as it passes from the cell membrane to the ultimate intracellular target.

  3. The signal is amplified, such that even one signal molecule evokes a large response.

  4. The signal triggers a sequence of phosphorylation events inside the cell.

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TLS Online TPP Program

#Question id: 186

#XL - T Zoology

What will be the net charge on given peptide at pH 5?
TLS Online TPP Program

#Question id: 189

#XL - T Zoology

Because coenzymes are specific for the chemical groups that they accept and donate, they are referred to as
TLS Online TPP Program

#Question id: 190

#XL - T Zoology

Ca++ or Mg++ are most likely to be part of ________, while Zn++ or Fe++ are present in ________.
TLS Online TPP Program

#Question id: 191

#XL - T Zoology

The role of zinc in the mechanisms of carbonic anhydrase is to
TLS Online TPP Program

#Question id: 192

#XL - T Zoology

What is the role of the magnesium ion in kinases that require the magnesium-ATP complex to donate phosphoryl groups?
TLS Online TPP Program

#Question id: 193

#XL - T Zoology

An ion commonly found in metalloenzymes and which can undergo reversible oxidation and reduction is