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TLS Online TPP Program

#Question id: 560

Vmax for an enzyme-catalyzed reaction:

#XL - Q Biochemistry

  1. generally increases when pH increases.

  2. increases in the presence of a competitive inhibitor.

  3. is limited only by the amount of substrate supplied.

  4. is twice the rate observed when the concentration of substrate is equal to the Km.

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TLS Online TPP Program

#Question id: 4932

#XL - T Zoology

Which of the following is the best hypothesis regarding origins of nucleic acids?
TLS Online TPP Program

#Question id: 9615

#XL - R Botany

In angiosperm plants, flower morphology can be very intricate. If a tree, such as a New Mexico locust, has flowers that share many morphological intricacies with flowers of the sweet pea vine, then the most likely explanation for these floral similarities is the same general explanation for the similarities between the
TLS Online TPP Program

#Question id: 14880

#XL - S Microbiology

Which of the following cells control the differentiation HSCs (hematopoietic stem cells)?
TLS Online TPP Program

#Question id: 20098

#XL - P Chemistry

When Fe (s) is dissolved in aqueous HCl in a closed vessel the work done is  
TLS Online TPP Program

#Question id: 20168

#XL - P Chemistry

The uncertainty in the momentum of an electron is 1·0 × 10–5 kg ms–1. The uncertainty in its position will be (h = 6·62 x 10–34 kg m2s–1)