1. QUIZ: THE MOLECULES-O-LIFE
Name _____________________________________________ Date ________________ Period ________
Group!
QUIZ: THE MOLECULES-O-LIFE
Directions: Put all your answers directly on this quiz. You may work in groups of up to four people, but you all must turn in your own quizzes. For any question that requires teacher initials, you must obtain them to get credit for the question. For all other questions, use the space provided to make your response. You may discuss your answers with your group only, and you must use your m (12-inch) voices. You have 20 minutes to complete all the items. Relax, good luck, and enjoy!
N.B. – The key for the atoms in your kit is as stated below. Single covalent bonds are represented by the wooden sticks, while double covalent bonds are represented by two springs.
Black – carbon Light blue – nitrogen
Yellow – hydrogen Red – oxygen
0. What is your group’s name and motto?
1. What is a string of monomers all smushed together called?
2. What molecule makes up a nucleic acid?
3. Using the labels in your Quizkit, make your group into a model of a protein.
4. Why is it bad if a protein changes shape? What can happen? You may write, draw, or both.
5. Using the models in you Quizkit, make two molecules of H2O and one molecule of HNO3, nitric acid. The structural formula of nitric acid is shown below.
You may disregard the charges shown.
6. Using the models that you made in question 5, and those in your Quizkit, show where hydrogen bonds would form between water and nitric acid.
TEACHER INITIALS ____________
TEACHER INITIALS ____________
TEACHER INITIALS ____________

2. 7. Disassemble your models and put the parts back in the Quizkit
7. Disassemble your models and put the parts back in the Quizkit. You can see that all the atomic bits are combined together. Do they form a mixture, suspension, or solution? How can you tell?
8. Lipids are large, energy-rich molecules. Most of this energy comes from the fatty acids in lipids. Make a model of two fatty acids one saturated, the other unsaturated. The acids should be at least five carbons long.
9. Nucleic acids make up DNA and RNA, and are made up of subunits called nucleotides. Model a nucleotide using the pieces in your Quizkit.
10. Using the symbol as a monosaccharide, draw a disaccharide like sucrose, and a trisaccharide like raffinose.
11. Is water polar or non-polar? Explain your answer.
12. What makes one amino acid different from another? Explain completely.
13. How can only four different nucleotides make up the nucleic acids that make each of us so complex?
14. Using the models in your Quizkit, make the molecule butane: C4H10. What does butane resemble? Is butane organic?
TEACHER INITIALS ____________
TEACHER INITIALS ____________