29) A ________ reaction breaks a ________ down into its monomers.A) dehydration synthesis; polymerB) polymer; moleculeC) hydrolysis; polymerD) condensation; reactantE) dehydration synthesis; molecule

26) In a workout your muscle cells produce lactate, yet you maintain a constant blood pH because ________.    A) endothelial cells secrete excess H+ to prevent a decrease in pHB) the respiratory system removes excess H+ from the blood before the pH is loweredC) metabolic acids are neutralized in muscle cells before released into the bloodD) metabolic bases are produced at the same rate by muscle cells to neutralize the acidsE) the body contains chemicals called buffers that resist changes in pH

12) Which of the following lists examples of body structures from the simplest to the most complex?A) Protein, mitochondrion, adipocyte (fat cell), connective tissue, stomachB) Protein, stomach, connective tissue, adipocyte (fat cell), mitochondrionC) Mitochondrion, connective tissue, protein, stomach, adipocyte (fat cell)D) Protein, adipocyte (fat cell), stomach, connective tissue, mitochondrionE) Mitochondrion, connective tissue, stomach, protein, adipocyte (fat cell)

20) The bonding properties of an atom are determined by its ________.    A) electronsB) photonsC) neutronsD) protonsE) positrons

Macromolecules are broken down to monomers in _________ blank

Experiments are carried out to test a hypothesis by changing one variable at a time and should include an unchanged variable termed a(n) _________ blank.

Atomic nuclei contain protons and ________.

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