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25 Cards in this Set

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