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Basic Biology Practice Test: Large Biological Molecules
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Large biological molecules, also known as macromolecules, are essential for life. They are produced by living organisms and are essential for biological processes such as cell division, development, and morphogenesis. 

The four major types of large biological molecules are:
Carbohydrates: Such as sugars
Lipids: Such as fats
Proteins: Large, complex molecules that play many critical roles in the body
Nucleic acids: Such as DNA and RNA 

Basic Biology Practice Test: Large Biological Molecules
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25 Questions

1. The bonding of two amino acid molecules to form a larger molecule requires which of the following?
2. What type of covalent bond between amino acid side chains (R groups) functions in maintaining a polypeptide's specific three-dimensional shape?
3. The amino acids of the protein keratin are arranged predominantly in an α helix. This secondary structure is stabilized by
4. If 14C-labeled uridine triphosphate is added to the growth medium of cells, what macromolecules will be labeled?
5. Which of the following best summarizes the relationship between dehydration reactions and hydrolysis?
6. Large organic molecules are usually assembled by polymerization of a few kinds of simple subunits. Which of the following is an exception to this statement?
7. Which of these molecules is not formed by dehydration reactions?
8. Which of the following statements is true for the class of biological molecules known as lipids?
9. Which of the following statements concerning saturated fats is not true?
10. Which of the following is true regarding saturated fatty acids?
11. The molecular formula for glucose is C6H12O6. What would be the molecular formula for a polymer made by linking ten glucose molecules together by dehydration reactions?
12. The label on a container of margarine lists 'hydrogenated vegetable oil' as the major ingredient. What is the result of adding hydrogens to vegetable oil?
13. The molecular formula for glucose is C6H12O6. What would be the molecular formula for a molecule made by linking three glucose molecules together by dehydration reactions?
14. All of the following are polysaccharides except
15. What is the chemical reaction mechanism by which cells make polymers from monomers?
16. Which bonds are created during the formation of the primary structure of a protein?
17. Which of the following is not a monomer/polymer pairing?
18. Which of the following statements about the 5' end of a polynucleotide strand of DNA is correct?
19. Enzymes that break down DNA catalyze the hydrolysis of the covalent bonds that join nucleotides together. What would happen to DNA molecules treated with these enzymes?
20. A molecule with the chemical formula C6H12O6 is probably a
21. Humans and mice differ because
22. A molecule with the formula C18H36O2 is probably a
23. How will brief heating (to 95°C. affect macromolecular structures in aqueous solution?
24. Which level of protein structure do the α helix and the β pleated sheet represent?
25. How many different kinds of polypeptides, each composed of 12 amino acids, could be synthesized using the 20 common amino acids?

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