Biology Chapter 1: Metabolic Processes and Biological Molecules
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Questions and Answers

What property of water explains the dissolution of sugar, salt, alcohol, and acids in water?

  • High heat capacity
  • Polarity (correct)
  • Surface tension
  • Low viscosity

Why do wet clothes take a long time to dry at room temperature?

  • High surface tension of water
  • Low heat capacity of water
  • High vapor pressure of water
  • High heat of vaporization of water (correct)

What does the expression 'like dissolves like' mean in the context of chemistry?

  • Nonpolar solvents dissolve nonpolar solutes
  • Polar solvents dissolve nonpolar solutes
  • Nonpolar solvents dissolve polar solutes
  • Polar solvents dissolve polar solutes (correct)

Why are carbon-based molecules so common in living organisms?

<p>Carbon can form stable chains and rings (A)</p> Signup and view all the answers

Peeled potatoes turn brown. Why does a quick dip in scalding water stop the browning reaction?

<p>Breakdown of phenolic compounds (D)</p> Signup and view all the answers

Which chapter covers the laws of thermodynamics as they relate to respiration and photosynthesis?

<p>Chapter 1 (C)</p> Signup and view all the answers

What is one of the remarkable aspects of the complex chemical reactions that occur within our bodies?

<p>They occur without conscious awareness (B)</p> Signup and view all the answers

What do cells require to carry out the functions of life automatically?

<p>Necessary raw materials (D)</p> Signup and view all the answers

What can be inferred about the molecular details of the complex chemical reactions discussed in the text?

<p>They are not consciously known until purposefully investigated (C)</p> Signup and view all the answers

What is amazing about the millions of complex chemical reactions taking place within our bodies?

<p>They take place without conscious awareness (B)</p> Signup and view all the answers

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