Midterm Practice Questions Flashcards
The principle of vitalism is the idea that
living things have a special life force that makes them different from non-living things
What are isotopes not used for
changing the chemical properties of an atom
What did the Miller-Urey experiment show?
molecules found in cells can be created from simpler molecules
Fats found in plants can be chemically treated to add more hydrogen. What happens to the fats?
They become more solid since they can pack more tightly
What characteristic does a carboxyl side chain have
its acidic
What is true about polypeptides
the derive their primary structure from information originally found in DNA
What are hydrogen bonds to important for
making gasoline a liquid
According to the modern version of the Cell Theory, all cells:
are composed of similar molecules
In the Miller-Urey experiment, what type of molecules were unable to form
nucleotides - need phosphate group - P
Why won’t a fatty acid dissolve in water
most bonds between the atoms involved equal sharing of electrons
What is true in the linear from of every monosaccharide
every carbon atom is covalently bounded to one oxygen atom
What does every enzyme correspond to
a part of a chromosome
What function is not carried by proteins in cells
carrying information from genes to cytosol
What structures of pepsin are affected outside optimal temperature conditions
secondary and tertiary
An amino acid with amino group is classified as
basic
