Which of the following does NOT describe a mechanism that cells use to regulate enzyme activities?

A. Cells control enzyme activity by phosphorylation and dephosphorylation.

B. Cells control enzyme activity by the binding of small molecules.

C. Cells control the rates of diffusion of substrates to enzymes.

D. Cells control the rates of enzyme degradation.

E. Cells control the rates of enzyme synthesis.

F. Cells control the targeting of enzymes to specific organelles. 

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#Question id: 329

#Section 2: General Biology

If the distance between the two point charges become half then force between them becomes

TLS Online TPP Program

#Question id: 330

#Section 2: General Biology

Two charges are placed at a certain distance. If the magnitude of each charge is doubled the force will become

TLS Online TPP Program

#Question id: 333

#Section 2: General Biology

Which of the following feature of RNA adds to its propensity to form double-helical structure?

TLS Online TPP Program

#Question id: 334

#Section 2: General Biology

Which of the following statements about hydrogen bonding is not true?

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#Question id: 335

#Section 2: General Biology

Suppose the major solutes in intact lysosomes are KCl (~0.1 M) and NaCl (~0.03 M). When isolating lysosomes, what concentration of sucrose is required in the extracting solution at room temperature (25 °C) to prevent swelling and lysis?

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#Question id: 336

#Section 2: General Biology

Which would you expect to be most soluble in water?