Copyright

Basic Chemistry & Biochemistry 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. All of the following statements are true about lipids, EXCEPT that _____.

Question 2 2. Why does soap remove grease from pans when we wash dishes?

Question 3 3. Which of the following statements is true regarding hydrogen bonds?

Question 4 4. A polar molecule, such as the one involved in a hydrogen bond, is sometimes called _____.

Question 5 5. What are the building blocks of DNA and RNA called?

Page 2

Question 6 6. What is the relationship between DNA and proteins?

Question 7 7. Which of the following properties helps explain why a city near the Pacific Ocean experiences less dramatic changes in temperature during the day compared to a city farther inland?

Question 8 8. Why is solid water (ice) less dense than liquid water?

Question 9 9. In chemistry, the Greek letter delta:

Question 10 10. Electron clouds:

Page 3

Question 11 11.

If a carbon atom has four valence electrons, which of the following statements are TRUE?

I. Carbon can form a triple covalent bond with another carbon atom.

II. A carbon atom CANNOT form two double bonds simultaneously.

III. A carbon atom can form four single covalent bonds simultaneously.

Question 12 12. How does an atom try to fill its valence shell?

Question 13 13. A cation has a _____ charge.

Question 14 14. An anion has a(n) _____ charge.

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

Page 4

Question 16 16. What is induced fit?

Question 17 17. Hydrolysis is the _____ of water to break apart _____.

Question 18 18. In a dehydration reaction, _____ are linked together to form _____.

Question 19 19. Proteins in our skin, hair, and nails are called what?

Question 20 20. Proteins are biological molecules made of _____.

Page 5

Question 21 21. Which of the following is NOT true of enzyme regulation?

Question 22 22. Competitive inhibition involves an inhibitor

Question 23 23. Which set of functional groups is always found in sugars?

Question 24 24. Lactose is composed of a glucose molecule and a galactose molecule, therefore, lactose is classified as a _____.

Question 25 25. What is the functional group that is formed when glycerol reacts with carboxylic acids to form triglycerides?

Page 6

Question 26 26. Which of the following is MOST likely to result in a hydrogen bond?

Question 27 27.

Which of the following represents a nucleotide of RNA?

I. Phosphate-Sugar-Adenine

II. Phosphate-Sugar-Uracil

III. Phosphate-Sugar-Thymine

Question 28 28. Water's ability to move against gravity in a narrow space, such as a tube, is called:

Question 29 29.

What differentiates a nonpolar covalent bond from a polar covalent bond?

I. Unequal sharing of electrons

II. Ions

III. Atoms of partial charge

Question 30 30.

Which of the following statements are true?

I. Noble gases complete their valence level by sharing electrons.

II. Covalent bonds are weak and easily broken.

III. Covalent bonds allow us to make predictions on how the molecule will look.

Basic Chemistry & Biochemistry 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!

OSAT Biological Sciences (CEOE) (010): Study Guide & Practice  /  Social Science Courses
Support