The reason that fats contain more energy than simple sugars, is fats have many more hydrogen atoms carbon atoms hydrogen bonds covalent bonds TRUE ANSWER : ? YOUR ANSWER : ?
The effectiveness or capacity of a buffer solution can be affected by concentration of the conjugate base to the weak acid both (a) and (b) temperature of buffer components molar concentration of the buffer components TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following statements about covalently bonded molecules is false? The chemical bonds that hold the molecule together are relatively strong Electrons are shared between the atoms that make up the molecule Such molecules often result from the interaction of ionized atoms Noncovalent bonds may also be present, especially if the molecule is large TRUE ANSWER : ? YOUR ANSWER : ?
Molecules in which the atoms are held together by __________ bonds have the strongest chemical linkages. covalent noncovalent hydrogen ionic TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following statements about water is correct? Polar substances that can form hydrogen bonds will dissolve in it Nonpolar substances like oils are not soluble in it It is critical for many of the chemical processes found in living systems All of these TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following alcohols would be most soluble in water? octanol ethanol butanol methanol TRUE ANSWER : ? YOUR ANSWER : ?
A biological polymer contains alanine, tyrosine, and lysine. Which of the following will be true about this molecule? Strong base DNA Protein Phospholipid TRUE ANSWER : ? YOUR ANSWER : ?
Weak acids generally have pKa values less than 1 been seldom found in living systems pKa values greater than 2 that cannot be used to buffer TRUE ANSWER : ? YOUR ANSWER : ?
The reactions of molecules are independent of the functional groups are the reactions of the functional groups All of these require an enzyme in all cases TRUE ANSWER : ? YOUR ANSWER : ?