Exam 3: The Chemical Building Blocks of Life

Chitin,a modified form of cellulose,is not only cross-linked with proteins but also its glucose units are modified with atoms of

Three fatty acids bonded together with a glycerol are found in a(n)

The covalent bonds connecting monomer units in sugars can be formed by the removal of a water molecule.A reaction referred to as ________________.

Biological membranes contain bilayers of which of the following lipids?

Which of the following best describes an enzyme?

Fructose and galactose all have the same six carbon atoms,twelve hydrogen atoms,and six oxygen atoms,just as glucose.A friend of yours says to you,"Since two of those sugars have the same number of atoms,they should all have the same name." You answer,"Yes.They do have the same atoms and the numbers are the same;however,

Which of the following is not a type of lipid?

Nucleic acids are polymers formed of building blocks that contain

You arrive late to a biological seminar.However,just as you enter the room,you hear the speaker referring to the "five-prime end" and the "three-prime end" of a macromolecule.Immediately,you know that they are talking about a

The specific amino acid sequence in a protein is its

Proteins are created with

All of the following are examples of functional groups in cells except

Carbohydrates are created with

Organic molecules contain a specific carbon-based core to which specific groups of atoms with definite chemical properties are attached.These groups of atoms are called ________ groups.

A chain of amino acids linked together end-to-end can only be found in a

Which of the following would not contain polymers of b-glucose?

A modified form of cellulose found in the exoskeletons of insects and crustaceans is known as _______.

Which of the following is not a macromolecule?

Proteins that can carry out catalysis in organisms are called ______.

Denaturation,a process in which a protein loses its native shape and function,is likely to be caused by all of the following except