Physiological Chemistry Quiz

Which of the following correctly identifies the most important elements of organisms?

• K, Ca, Na & O

• C, S, N & O

• C, He, N & O

• C, H, N & O

Which of the following is a compound?

• N2

• N

• C6H12O6

• O3

• O

Which of the following is not a characteristic of an atom?

Which of the following correctly describes a colloid?

• heterogenous mix comprising the solvent and large-sized solute/s that often can undergo sol-gel transformation

• homogenous mix comprising the solvent and small-sized dissolved solute/s

• formed by chemical bonding of atoms of different elements

• formed by chemical bonding of atoms of the same elements

Which of the following forms the strongest chemical bond?

• electrostatic

• hydrogen

• covalent

• ionic

Which of the following chemical bonds holds together NaCl?

• hydrogen

• ionic

• covalent

• electrostatic

Which of the following does not apply to a synthesis reaction?

• important during digestion

• simpler atoms/molecules are joined to form a more complex molecule

• typically requires some input of energy

• endergonic

Which of the following does apply to a decomposition reaction?

• typically requires some input of energy

• important part of generating ATP

• endergonic

• important part of making glycogen

Which of the following is an inorganic compound?

• proteins

• lipids

• nucleic acids

• water

Which of the following is not a characteristic of water?

• H2O has a low heat capacity

• H2O is the body’s solvent

• H2O allows high concentrations of chemicals to dissolve into solution

• H2O acts as a lubricant