The four elements that make up about 96% of body weight are ________. - ANSWER carbon,
oxygen, hydrogen, nitrogen
A chemical reaction in which bonds are created is usually associated with ________. - ANSWER
the consumption of energy
Starch is the stored carbohydrate in plants, while ________ is...
The four elements that make up about 96% of body weight are ________. - ANSWER carbon,
oxygen, hydrogen, nitrogen
A chemical reaction in which bonds are created is usually associated with ________. - ANSWER
the consumption of energy
Starch is the stored carbohydrate in plants, while ________ is the stored carbohydrate in
animals. - ANSWER glycogen
What does the formula C 6H 12O 6 mean? - ANSWER There are 6 carbon, 12 hydrogen, and
6 oxygen atoms.
Carbohydrates are stored in the liver and skeletal muscles in the form of ________. - ANSWER
glycogen
Forming glycogen as energy storage in the liver is an example of ________. - ANSWER
anabolism
You notice that you cannot read your book through a test tube of patient fluid held against the
print, making it so blurred as to be unreadable. There is no precipitant in the bottom of the
beaker, though it has been sitting for several days in a rack. What type of liquid is this? -
ANSWER colloid
Which of the following statements is FALSE? - ANSWER Larger particles move faster than
smaller ones and thus collide more frequently and more forcefully.
, Which statement about enzymes is FALSE? - ANSWER Enzymes require contact with substrate
in order to assume their active form.
Which of the following is the major positive ion outside cells? - ANSWER sodium
Which property of water is demonstrated when we sweat? - ANSWER high heat of vaporization
The chemical symbol O=O means ________. - ANSWER the atoms are double bonded
The genetic information is coded in DNA by the ________. - ANSWER sequence of the
nucleotides
A high fever causes an enzyme to lose its three-dimensional structure and function.
Which bonds are broken when a protein denatures? - ANSWER hydrogen bonds
What structural level is represented by the sequence of amino acids in a polypeptide chain? -
ANSWER primary structure
What is a cation? - ANSWER an atom that loses one or more electrons and acquires a net
positive charge
Which of the following does NOT describe enzymes? - ANSWER Enzymes work by raising
the energy of activation
What does CH 4 mean? - ANSWER There is one carbon and four hydrogen atoms
Which of the following is NOT considered a factor in influencing a reaction rate? - ANSWER time
Amino acids joining together to make a peptide is a good example of a(n) ________ reaction. -
ANSWER synthesis
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