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Biological Molecules 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!

Page 1

Question 1 1. How many kinds of amino acids can the human body use?

Question 2 2. What does N-terminus refer to?

Question 3 3. _____ is the main globular protein found in egg whites.

Question 4 4. Which of the following statements is true about globular proteins?

Question 5 5. All of the following statements are true, EXCEPT _____.

Page 2

Question 6 6. Which set of functional groups is always found in sugars?

Question 7 7. Adenine and thymine are examples of this component of a nucleotide:

Question 8 8. Phosphate bonds are important because they are

Question 9 9. Choose the structure that represents the order of amino acids in a protein.

Question 10 10. Identify the secondary structure that is NOT held together by hydrogen bonds.

Page 3

Question 11 11. Proteins are biological molecules made of _____.

Question 12 12. When a protein makes it easier for a biological reaction to happen, it is acting as _____.

Question 13 13.

A single sugar is called a 'monosaccharide.'

'_____saccharide' refers to a three sugar polymer.

Question 14 14. What holds high density polyethylene together?

Question 15 15. What is the shorthand for a carbon-containing substance in organic chemistry?

Page 4

Question 16 16. The _____ has an oxygen atom single-bonded to hydrogen and single-bonded to a carbon-containing group.

Question 17 17. Which of the following creates the strongest bonds in protein structure?

Question 18 18. How does water affect protein structure?

Question 19 19. Why does soap remove grease from pans when we wash dishes?

Question 20 20. All of the following statements are true about lipids, EXCEPT that _____.

Page 5

Question 21 21. Which amino acid has no side chain?

Question 22 22. Which category of amino acids cannot participate in hydrogen bonding with its side chain?

Question 23 23. What are the monomer units in protein polymers?

Question 24 24. The process of _____ occurs when a protein loses its functional shape due to changes in environmental conditions, like pH or temperature.

Question 25 25. Lactose is composed of a glucose molecule and a galactose molecule, therefore, lactose is classified as a _____.

Page 6

Question 26 26. Which is NOT a component of a nucleotide?

Question 27 27. How is the tertiary structure of protein different from that of a quaternary structure?

Question 28 28. Proteins in our skin, hair, and nails are called what?

Question 29 29. A two unit molecule is a

Question 30 30. Which of the following functional groups contains nitrogen?

Biological Molecules 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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