What Is The Benefit Of Using Covalent Bonds As A Mean Of Attaching To Surfaces

3. nucleotides.

9. A bilayer is associated with A. proteins.

D. complex polysaccharides. 10. Isomers are associated with

1. carbohydates. 2. amino acids. 4. RNA. 5. fatty acids.

Applications

1. A group of bacteria known as thermophiles thrive at high temperatures that would normally destroy other bacteria. Yet these thermophiles cannot survive well at the lower temperatures normally found on the earth. Propose a plausible explanation for this observation.

2. Microorganisms use hydrogen bonds to attach themselves to the surfaces that they live upon. Many of them lose hold of the surface because of the weak nature of these bonds and end up dying. Contrast the benefits and disadvantages of using covalent bonds as a means of attaching to surfaces.

Critical Thinking

1. What properties of the carbon atom make it ideal as the key atom for all molecules in organisms?

2. A biologist determined the amounts of several amino acids in two separate samples of pure protein. His data are shown here:

Amino

Acid Leucine Alanine Histidine Cysteine Glycine

He concluded that protein A and protein B were the same protein. Do you agree with this conclusion? Justify your answer.

3. This table indicates the freezing and boiling points of several molecules:

Molecule

Water 0

Carbon tetrachloride (CClj) —23

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Responses

  • jana
    What is the benefit of using covalent bonds as a mean of attaching to surfaces?
    3 years ago
  • Pia
    What are the disadvantages of covalent bondings?
    2 years ago

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