BIOLOGY

 

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The reading assignment for this week introduced you to the four types of biological macromolecule.

  • For each category of macromolecule, carbohydrate, lipid, protein  and nucleic acid, select a representative polymer and explain its  function within the cell.  Suggest which aspects of your chosen molecule  are characteristic of the class of macromolecules to which it belongs  by identifying its monomer subunits and describing their basic chemical  structure and the manner in which the monomers are linked together.

For instance, an example of a carbohydrate would be cellulose.  Its  monomer subunit is glucose which is a monosaccharide with the formula C6H12O6.   The glucose molecules in cellulose are linked together by β1-4  glycosidic bonds which form long chains and give cellulose its strength  and rigidity.  This strength is important as the function of cellulose  is to provide structural support in plants.

  • Complete the following cross word puzzle – the questions are based on your reading material this week.  The crossword is attached as a word document that you can download, complete and resubmit. 

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Learning Journal – Crossword

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Across

1. protein that acts as a catalyst in biochemical reactions

6. component of fat molecule

8. acidic group in amino acids

9. monosaccharide commonly found in fruit

11. fatty acid with hydrogens in different planes

12. monomer subunit of protein

14. major constituent of plasma membrane

17. fatty acid containing no double bonds

18. nucleic acid found only in RNA

19. bond formed between two amino acids

20. number of amino acids

Down

2. single unit of a polymer

3. structure of polypeptide chain that contains beta sheets

4. provides structural support in plant cells

5. type of bond between monosaccharides in a chain

7. used for long term energy storage

10. biological macromolecule with a ratio of 1 C:2 H:1 O

13. sugar backbone of DNA

15. type of reaction used to form polymers

16. adenine and guanine are this type of nucleotide

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