Chapter 17, Problem 3RQ

The pH of black coffee is 5, and that of milk of magnesia is 10. Is the coffee twice as acidic as milk of magnesia?

What are the three most common lipids in living organisms? How do their structures differ?

Which of the following is stored in the body? thiamine phosphorous folic acid vitamin C

Which of the following is a class of molecules that encompasses all of the other molecules listed? a. triglycerides b. fatty acids c. waxes d. steroids e. lipids f. phospholipids

Ionic and covalent bonds join atoms into molecules. What do hydrogen bonds do?

Chewing a bite of bread mixes it with saliva and facilitates its chemical breakdown. This is most likely due to the fact that ________. the inside of the mouth maintains a very high temperature chewing stores potential energy chewing facilitates synthesis reactions saliva contains enzymes

Explain the difference between an ionic bond and a covalent bond.

The monomers that make up proteins are called_____. a. nucleotides b. disaccharides c. amino acids d. chaperones

Why are hydrogen bonds and van der Waals interactions necessary for cells?