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25 Cards in this Set
- Front
- Back
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Denaturation of proteins is always a reversible process.
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False
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Which level of protein structure ultimately determines all the other levels of structure?
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primary
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Proteins are made up of_____ strung together by _______bonds.
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amino acids; peptide
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The external skeleton of many invertebrates is made of:
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chitin
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which is incorrect about proteins?
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The main function of protein is energy storage
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All of the following are ways RNA differs from DNA except:
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RNA is a nucleic acid
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Which of the following is the main component of cell membranes?
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Phospholipids
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The carbohydrate that is found in pant cell walls is:
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cellulose
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Animal store energy in a polymer composed of many glucose molecules called:
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glycogen
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Which of the following is incorrect about saturated fats?
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They are generally the type of fat found in plants.
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When a protein is composed of more than one polypeptide chain, the arrangement of the chains is called the ______ structure.
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Quaternary
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The a-helix and B-pleated sheet are examples of which level of protein structure.
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Secondary
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The carbonhydrate that plants use to store energy is called:
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Starch
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The building blocks of carbohydrates are:
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monosaccharides
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When a protein is denatured, which level of protein structure is unaffected?
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Primary
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Hydrogen bonds between different parts of the polypeptide chain result in which level of protein structure?
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Secondary
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The final three-dimensional shape of a protein is its______ structure.
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Tertiary
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The sugar found in DNA is :
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deoxyribose
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The final three-dimensional shape of a single polypeptide is called its_____.
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Tertiary
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A polysaccharide of glucose found in animals that is highly branched is:
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glycogen
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Unsaturated fats are usually solid at room temperature.
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False
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All of the following are lipids except:
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glycogen
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Which polymer serves as the information storage molecule for cells?
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Nucleic Acid
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Chagaff's rule says:
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That in DNA molecules, the amount of adenine always equals th amount of thymine and the amount of cytosine always equals the amount of guanine.
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Lipids are insoluble in water because they are nonpolar.
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True
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