Chapter Questions
State the chemical symbol for each of the following elements: sodium, potassium, iron, calcium, oxygen, carbon,hydrogen, copper, and chlorine. (p. 24)
Explain, in terms of their electrons, how an atom ofsodium and an atom of chlorine form a molecule ofsodium chloride. (p. 26)
a. Explain, in terms of their electrons, how an atom ofcarbon and two atoms of oxygen form a molecule ofb. Explain the functions of hydrogen bonds.c. Explain the function of disulfide bonds.
Name the subunits (smaller molecules) of which each ofthe following is made: DNA, glycogen, a true fat, and aprotein. (pp. 40, 33, 35, 36)
State precisely where in the body each of these fluids isfound: plasma, intracellular water, lymph, and tissuefluid. (pp. 28โ29)
Explain why it is important to the body that water changestemperature slowly. (p. 28)
Describe two ways in which the solvent ability of water isimportant to the body. (p. 28)
Name the organic molecule with each of the followingfunctions: (pp. 34, 36, 42)a. The genetic code in chromosomesb. โSelfโ antigens in our cell membranesc. The storage form for glucose in the liverd. The storage form for excess food in adipose tissuee. The precursor molecule for the steroid hormonesf. The undigested part of food that promotes peristalsisg. The sugars that are part of the nucleic acids
State the summary equation of cell respiration. (p. 29)
State the role or function of each of the followingin cell respiration: CO2, glucose, O2, heat, and ATP.(p. 29)
State a specific function of each of the following in thehuman body: Ca, Fe, Na, I, and Co. (p. 30)
Explain, in terms of relative concentrations of H+ ionsand OHโ ions, each of the following: acid, base, and neutral substance. (pp. 30โ31)
State the normal pH range of blood. (p. 31)
Complete the following equation, and state how each ofthe products affects pH: (pp. 31โ32)HCl + NaHCO3? _______ + _______
Explain the active site theory of enzyme functioning.(p. 31)
Explain the difference between a synthesis reaction anda decomposition reaction. (p. 27)