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TLS Online TPP Program

#Question id: 343

Assume that acid rain has lowered the pH of a particular lake to pH 5.0. What is the hydroxide ion concentration of this lake?

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

  1. 1 × 10^-9 mol of hydroxide ions per liter of lake water

  2. 1 × 10^-5 mol of hydroxide ions per liter of lake water

  3. 5.0 M hydroxide ion

  4. 5.0 × 10^-5 mol of hydroxide ions per liter of lake water

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TLS Online TPP Program

#Question id: 5846

#SCPH28 | Zoology

The bacteriophage can lysogenize after infecting a bacterium, i.e. integrate into the host bacterial chromosome by site-specific recombination, and may reside there for many generations before an excision event regenerates the viral genome in an infective form.  Which one of the following is not a component of these events?
TLS Online TPP Program

#Question id: 1686

#SCPH01 Biochemistry

A hapten is best defined as being:
TLS Online TPP Program

#Question id: 414

#SCPH05 I Biotechnology

The hydrolysis of phosphoenolpyruvate proceeds with a DG'° of about –62 kJ/mol. The greatest contributing factors to this reaction are the destabilization of the reactants by electostatic repulsion and stabilization of the product pyruvate by:
TLS Online TPP Program

#Question id: 1590

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

An epitope associates with which part of an antibody?
TLS Online TPP Program

#Question id: 15233

#SCPH28 | Zoology

Low-percentage acrylamide gels are also used to separate
A) Large DNA
B) Large proteins
C) Large RNA
D) All DNA, Proteins, RNA