Practice Questions

TLS Online TPP Program

#Question id: 453

Which statement does not explain why many biochemical processes are carried out via multi-step pathways rather than by single-step reactions (or only a few steps)

#SCPH05 I Biotechnology

Multi-step pathways allow for more control points to regulate biochemical processes.
The end products of most pathways can usually be produced only by the pathway reactions that nature has evolved.
Sharing of intermediates between pathways is facilitated this way.
There is greater control over the amounts of energy that are consumed or released at any one time.

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TLS Online TPP Program

#Question id: 2070

#SCPH05 I Biotechnology

The sodium-potassium pump is called an electrogenic pump because it:

TLS Online TPP Program

#Question id: 15925

#SCPH05 I Biotechnology

What is a cell line?

TLS Online TPP Program

#Question id: 2259

#SCPH01 Biochemistry

Which of the following is not a characteristic of prokaryotes?

TLS Online TPP Program

#Question id: 4306

#SCPH28 | Zoology

Which of the following molecules helps to "turn off" genes in a cell?

TLS Online TPP Program

#Question id: 408

#SCPH01 Biochemistry

Which of the following compounds has the largest negative value for the standard free-energy change (DG'°) upon hydrolysis?