Laura Tucker ­ Carbohydrates and Lipids ­ Bio 212 SI ­ September 01, 2016 Word Bank: Glycosidic linkage
Phospholipid bilayers Lipids
Liposomes Hydrocarbons Micelles 1. _________ fatty acids and _________ hydrocarbons chains decrease membrane permeability. 2. True or False: Saturated hydrocarbons have a double bond, which causes a kink in the tail. 3. True or False: Charged, large polar molecules cross the phospholipid bilayers quickly. 4. What do carbohydrates do? a. _______________ b. _______________ c. ________________ 5. Are the following lipids saturated or unsaturated? How can you tell? a. ____________ b. _____________ c. _____________ d. ______________ e. _____________ f.
_____________ 6. What are the three most important types of lipids? What is their main function? a. ___________________
1.Precursor to hormones b. ___________________
2. Energy Storage c. ___________________
3.Form membranes 7. Identity the following types of lipids? a. ____________________ b. ____________________ c. ____________________ 8. Put the following in order of high permeability and low permeability a. Large, polar molecules b. Small, polar molecules c. Ions d. Small, nonpolar molecules 9. Match the following molecules to the four kinds of molecules which cross membranes above. a. Glucose b. O2 c. Na+ d. Water 10. What are some factors that affect permeability? Why do they? 11. Explain why phospholipid bilayers form the way they do.