Practice Questions

TLS Online TPP Program

#Question id: 381

Consider an acetate buffer, initially at the same pH as its pKa (4.76). When sodium hydroxide (NaOH) is mixed with this buffer, the:

#Unit 1. Molecules and their Interaction Relevant to Biology

pH rises more than if an equal amount of NaOH is added to an acetate buffer initially at pH 6.76
pH rises more than if an equal amount of NaOH is added to unbuffered water at pH 4.76.
ratio of acetic acid to sodium acetate in the buffer falls.
sodium acetate formed precipitates because it is less soluble than acetic acid.

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#Question id: 11278

#Unit 10. Ecological Principles

Which of the following is true with respect to oligotrophic lakes and eutrophic lakes?

A) Oligotrophic lakes are less subject to oxygen depletion.

B) Rates of photosynthesis are lower in eutrophic lakes.

C) Eutrophic lake water contains higher concentrations of nutrients.

D)Sediments in oligotrophic lakes contain larger amounts of decomposable organic matter.

#Question id: 545

#Unit 1. Molecules and their Interaction Relevant to Biology

Which one of the following is not among the six internationally accepted classes of enzymes?

#Question id: 24033

#General Aptitude

#Question id: 11944

#Unit 7. System Physiology – Animal

The maximum clearance rate possible for a substance that is totally cleared from the plasma is equal to which of the following?

#Question id: 309

#Unit 1. Molecules and their Interaction Relevant to Biology

Predict the correct order among the following________