TLS Online TPP Program

#Question id: 882


Choose correct statements about thermophilic proteins

I. The proteins found in thermophilic species are much more stable than their mesophilic counterparts.

II. All thermostable proteins have such a high incidence of salt bridges

III. the most important of which are an increased size of the protein’s hydrophobic core, an increased size of the interface between its domains and/or subunits, and a more tightly packed core as evidenced by a reduced surface-to-volume ratio.

IV. Several of these thermostable enzymes have a superabundance of salt bridges on their surfaces.

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. I, II and IV

  2. II, III and IV

  3. III and IV

  4. I, III and IV

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TLS Online TPP Program

#Question id: 9164

#Unit 9. Diversity of Life Forms

Use the following figures to answer the question below.


East of the Mississippi River, in Hopkinsville Kentucky, the mean annual precipitation is 130 cm. The mean annual temperature is 14.3°C. In the winter, the mean temperature is 7.3°C, while in summer it is 20.6°C. Using the climograph shown here, how would we classify the biome found in Hopkinsville?


TLS Online TPP Program

#Question id: 9163

#Unit 9. Diversity of Life Forms

Use the following figures to answer the question below


Based on the data in the figures, which of the following statements are correct?

I) Area 1 would be considered a desert because of its high average temperature.

II) Area 1 has more average precipitation than Area 2.

III) Area 2 would be considered a desert because of its low average precipitation.

IV) Area 2 has a larger annual temperature variation.

TLS Online TPP Program

#Question id: 9159

#Unit 9. Diversity of Life Forms

Which of the following investigations would shed the most light on the future distribution of organisms in temperate regions that are faced with climate change?

TLS Online TPP Program

#Question id: 9157

#Unit 9. Diversity of Life Forms

At 15-30°N, air masses formed over the Pacific Ocean are moved by prevailing westerlies, where they encounter extensive north-south mountain ranges. Which statement best describes the outcome of this encounter between a landform and an air mass?

TLS Online TPP Program

#Question id: 9156

#Unit 9. Diversity of Life Forms

Generalized global air circulation and precipitation patterns are caused by ________.

TLS Online TPP Program

#Question id: 9153

#Unit 9. Diversity of Life Forms

Imagine some cosmic catastrophe jolts Earth so that its axis is perpendicular to the orbital plane between Earth and the sun. The most obvious effect of this change would be ________.