Flashcards in phys6final10 Deck (19):
Water is an excellent solvent (It can dissolve many substances) because
it has polar covalent bonds.
Because water has a high heat of vaporization it
provides an excellent cooling mechanism.
A polysaccharide that is found in muscle and liver cells is
Which of these substances would form an acid when dissolved in water?
About 18 - 25% of the total body mass of a lean adult is made up of
The chemical symbols for potassium, iron and phosphorus are____, _____, and _____ respectively.
K, Fe, P
Some molecules are said to be amphipathic because they
have both polar and nonpolar regions.
One end of aphospholipid is hydrophilic because
the head is a polar phosphate group
The building blocks of proteins are
All steroids contain
four rings of carbon atoms
Amino acids are different from each other because of the
structure of the side chain (R group)
The tertiary structure of a protein refers to the
three dimensional shape of the molecule.
If a protein encounters a change in temperature, pH, or electrolyte concentration it will
unravel and lose its characteristic shape
Which is a component of DNA, but not of RNA?
The portion of an enzyme where the substrates attach is called the
The names of enzymes usually end with the suffix
DNA and RNA contain the pentose sugars
deoxyribose and ribose
A technique used in research and a variety of legal situations using the chemicals obtained from the nuclei of cells is called,