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Unformatted text preview: NAME: _____________________________________________________ _____1. Which of the following is Not one of the four most common elements found in living organisms? a) hydrogen b) oxygen c) carbon d) sulfur d) nitrogen _____2. Organic molecules are those that contain at least a) carbon c) carbon and oxygen b) carbon and hydrogen d) carbon, oxygen, and hydrogen _____3. What term is used for molecules that have identical molecular formulas but the atoms in each molecule are arranged differently? a) isotopes b) isomer c) homomolecules d) organic e) balanced _____4. Which is Not an isomer of the other three? a) glucose b) ribose c) fructose d) galactose _____5. A polysaccharide is a polymer made up of which kind of monomers? a) simple sugars b) amino acids c) nucleotides d) alternating sugar and phosphate groups e) fatty acids and glycerol _____6. A lipid is a polymer made up of which kind of monomers? glucose or modified glucose molecules a) amino acids c) nucleotides b) alternating sugar and phosphate groups d) fatty acids and glycerol _____7. A dehydration synthesis reaction is also known as a) a condensation reaction b) a hydrolysis reaction c) an isomeric reaction d) an energy releasing reaction e) monomer formation _____8. Which pair are both structural carbohydrate molecules? a) starch and glycogen b ) starch and cellulose c) glycogen and cellulose d) cellulose and chitin e) glycogen and chitin _____9. Which carbohydrate is found in the cell walls of plants? a) starch b) chitin c) cellulose d) glycogen e) glycerol _____10. Which carbohydrate is used in the liver for energy storage? a) starch b) chitin c) cellulose d) glycogen e) glycerol _____11. Which carbohydrate is found in the exoskeleton of insects and crabs? a) starch b) chitin c) cellulose d) glycogen e) glycerol _____12. Which lipid does Not contain at least some subunits similar to those in the others? a) steroids b) neutral fats c) waxes d) phospholipids _____13. Which of the following lipids form a bilayer between two watery regions, such as the plasma membrane of a cell? a) steroids b) neutral fats c) waxes d) phospholipids _____14. Cholesterol belongs to which of the following groups? a) steroids b) neutral fats c) waxes d) phospholipids _____15. If an animal needed to store energy for long term use, but not be encumbered with the weight of extra tissue, which is the best molecule for storage? a) fructose and glucose in the form of honey b) high calorie fat molecules c) complex cellulose molecules d) starch e) glycogen with extensive side branches of glucose _____16. A protein is a polymer made up of which kind of monomers?...
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