Site MapHelpFeedbackPreQuiz
PreQuiz
(See related pages)

1
Organic compounds contain
A)carbohydrates.
B)carbon, hydrogen, and oxygen.
C)carbon and hydrogen.
D)proteins.
2
Each carbon atom can form up to ___ bond(s) with other atoms.
A)one
B)two
C)three
D)four
3
A hydrogen bond is an attraction between
A)a positive pole on a hydrogen atom and a negative pole on another atom on a different molecule.
B)two hydrogen atoms.
C)hydrogen and any other atom or molecule
D)a proton and an electron in a hydrogen atom.
4
A covalent bond involves
A)two water molecules.
B)a shared pair of electrons.
C)two charged atoms (or ions).
D)two or more atoms of the same kind.
5
Proteins are an example of
A)hydrocarbons.
B)carbohydrates.
C)macromolecules.
D)nucleic acids.
6
The building blocks of proteins are
A)amino acids.
B)lipids.
C)sugars.
D)cellulose.
7
Hair and fingernails are made of
A)lipids.
B)the protein keratin.
C)the protein collagen.
D)starch.
8
Some proteins function as
A)genes.
B)the main structural component of cell membranes.
C)long-term energy storage.
D)enzymes.
9
The bond holding protein molecules together is
A)a covalent bond.
B)a peptide bond.
C)a hydrogen bond.
D)an ionic bond.
10
A chain of many amino acids bonded together is
A)A polypeptide.
B)a polysaccharide.
C)a polymerase chain reaction (PCR).
D)a triglyceride.





To learn more about the book this website supports, please visit its Information Center.
(c)2006 McGraw-Hill Higher Education
Any use is subject to the Terms of Use and Privacy Notice.
McGraw-Hill Higher Education is one of the many fine businesses of The McGraw-Hill Companies.


Inquiry into Biology Online Learning Center

Home > Chapter 18 > PreQuiz