Praxis Biology: Biological Molecules and Processes Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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Question 1 1. Which of the following is true about organic molecules?

Question 2 2. What is the functional group that is formed when glycerol reacts with carboxylic acids to form triglycerides?

Question 3 3. Which of the following makes proline a 'special' amino acid?

Question 4 4. A long chain molecule formed by many smaller units is called a

Question 5 5. Which of the following statements correctly describes the behavior of the sickle cell hemoglobin?

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Question 6 6. What does N-terminus refer to?

Question 7 7. Which category of amino acids cannot participate in hydrogen bonding with its side chain?

Question 8 8. Which of the following is NOT true of a noncompetitive inhibitor?

Question 9 9. The _____ has an oxygen atom single-bonded to hydrogen and single-bonded to a carbon-containing group.

Question 10 10. The location of substrate binding is called the

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Question 11 11.

A single sugar is called a 'monosaccharide.'

'_____saccharide' refers to a three sugar polymer.

Question 12 12. Which of the following roles do lipids NOT play in our bodies?

Question 13 13. How is the tertiary structure of protein different from that of a quaternary structure?

Question 14 14. What is induced fit?

Question 15 15. Which of the following is NOT true of lactase?

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Question 16 16. Cellulose & proteins are types of

Question 17 17. Proteins in our skin, hair, and nails are called what?

Question 18 18. A non-substrate molecule binds to an enzyme. Now the enzyme is unable to bind its substrate. What has likely occurred?

Question 19 19. An enzyme will reach its saturation point

Question 20 20. A coenzyme is differentiated from the broader class of cofactors because it is _____.

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Question 21 21. Which of the following would likely NOT increase a reaction rate of an enzyme in your mouth that was not yet at optimal conditions?

Question 22 22. A peptide bond is the linkage between:

Question 23 23. A two unit molecule is a

Question 24 24. Iron binds tightly to the heme group in the protein hemoglobin. What type(s) of helper molecule would this be considered?

Question 25 25. When a protein makes it easier for a biological reaction to happen, it is acting as _____.

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Question 26 26. Which amino acid has no side chain?

Question 27 27. The change in overall energy of a reaction is

Question 28 28. What is the shorthand for a carbon-containing substance in organic chemistry?

Question 29 29. Many coenzymes are derived from _____.

Question 30 30. An increase in temperature

Praxis Biology: Biological Molecules and Processes Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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