Biochemistry Study Guide Worksheet Key, Exercises of Biochemistry

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MULTIPLE CHOICE: i ' Circle the letter for ALL the answers thet are TRUE. THERE MAY BE MORE THAN ONE CORRECT ANSWER. NO other kind of atom can form the number and variety of molecules that can because it can bond to 4 other atoms at the same time to make carbohydrates, lipids, nucleic acids, and proteins. A, hydrogen DB. sodium A is made up of a sugar, a nitrogen base, and a phosphate group. A, amino acid af nucleotide . phospholipid DB. glycoprotein Circle the nitrogen base found in DNA but WOT RNA is Adenine Guanine Cytosine Uracil Lipids are different from other macromolecules because they Sure hydrophobic and don't dissoive in water B. contain carbon, hydrogen and oxygen in a ratio of Liasi C. dissolve easily in water D. form large protein molecules £. are hydrophilic . Glycogen, cellulose, and starch are all A, proteins oe “polysaccharides ¢. nucleic acids D. lipids E. phospholipids Which 2 kinds of molecules combine to form cell membranes? A. nucleic acids and carbohydrates hospholipids and proteins €. carbohydrates and nucleic acids D. polysaccharides and RNA Adenine, thymine, guanine, cytosine, and uracil are all A. amino acids used to make proteins B. carbohydrates used to make polysaccharides C. lipids used to make phospholipids