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TLS Online TPP Program

#Question id: 9239

Why are changes in the global carbon cycle important?

#SCPH06 I Botany
  1. Burning increases available carbon for primary producers and, therefore, primary consumers.
  2. Deforestation and suburbanization increase an area's net primary productivity.
  3. Increasing atmospheric concentrations of carbon dioxide are altering Earth's climate.
  4. By using fossil fuels, we are replenishing a nonrenewable resource.
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TLS Online TPP Program

#Question id: 4152

#SCPH06 I Botany

The pathway for polypeptides exported from E. coli includes the following steps, which occur in what order for correct export?

1.  A chaperone, SecA, binds to the polypeptide.

2.  A chaperone, SecB, binds to the polypeptide.

3.  ATP is hydrolyzed by Sec A.

4.  SecA pushes 20 amino acids of the polypeptide into the translocation complex.
TLS Online TPP Program

#Question id: 4152

#SCPH28 | Zoology

The pathway for polypeptides exported from E. coli includes the following steps, which occur in what order for correct export?

1.  A chaperone, SecA, binds to the polypeptide.

2.  A chaperone, SecB, binds to the polypeptide.

3.  ATP is hydrolyzed by Sec A.

4.  SecA pushes 20 amino acids of the polypeptide into the translocation complex.
TLS Online TPP Program

#Question id: 4153

#SCPH01 Biochemistry

Ubiquitin-mediated protein degradation is a complex process, and many of the signals remain unknown.  One known signal involves recognition of amino acids in a processed protein that are either stabilizing (Ala, Gly, Met, Ser, etc.) or destabilizing (Arg, Asp, Leu, Lys, Phe, etc.), and are located at:
TLS Online TPP Program

#Question id: 4153

#SCPH05 I Biotechnology

Ubiquitin-mediated protein degradation is a complex process, and many of the signals remain unknown.  One known signal involves recognition of amino acids in a processed protein that are either stabilizing (Ala, Gly, Met, Ser, etc.) or destabilizing (Arg, Asp, Leu, Lys, Phe, etc.), and are located at:
TLS Online TPP Program

#Question id: 4153

#SCPH06 I Botany

Ubiquitin-mediated protein degradation is a complex process, and many of the signals remain unknown.  One known signal involves recognition of amino acids in a processed protein that are either stabilizing (Ala, Gly, Met, Ser, etc.) or destabilizing (Arg, Asp, Leu, Lys, Phe, etc.), and are located at:
TLS Online TPP Program

#Question id: 4153

#SCPH28 | Zoology

Ubiquitin-mediated protein degradation is a complex process, and many of the signals remain unknown.  One known signal involves recognition of amino acids in a processed protein that are either stabilizing (Ala, Gly, Met, Ser, etc.) or destabilizing (Arg, Asp, Leu, Lys, Phe, etc.), and are located at: