Physiological Chemistry Quiz

Which of the following is the most dependable source of complete protein for cats & dogs containing all essential amino acids?

• fruits

• legumes

• meats

• beans

• vegetables

Which of the following is a compound?

• O

• N

• N2

• O3

• C6H12O6

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

• C, H, N & O

• C, He, N & O

• C, S, N & O

• K, Ca, Na & O

• K, Ca, N & Cl

Which of the following is an inorganic compound?

• lipids

• water

• proteins

• nucleic acids

• carbohydrates

Which of the following correctly describes a colloid?

• formed by chemical bonding of atoms of the same elements

• formed by chemical bonding of atoms of different elements

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

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

• heterogenous mix comprising the solvent and very large-sized solute/s that readily separate when unmixed

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

• generally a balance exists between the number of protons and electrons (except for ions where an imbalance exists)

• has electron shells that are most stable when outermost‘valence’ shell is complete

• more likely to form chemical bonds when outermost‘valence’ shell is incomplete

• smallest unit of an element, defined by the number or protons, neutrons & electrons

• protons have a negative charge and electrons have a positive charge

What role does the organic molecule’s functional group play?

• defines the energy content of the organic molecule

• determines the chemical reactivity of the organic molecule

• indicates the number of carbon atoms along the carbon chain

• identifies the polar and non-polar sides of the organic molecule

• allows the organic molecule to readily dissolve in water

How many carbon atoms do you find in a typical monosaccharide?

• 1 –2

• 3 –7

• 8 –13

• 14 –19

• more than 20

Which of the following is an incorrect statement regarding triglycerides?

• the glycerol is a very simple sugar

• white adipose tissue is almost entirely composed of triglycerides

• 3 fatty acids attached to a glycerol molecule

• fatty acids can have 4 to 36 carbons

• saturated fatty acids have only double bonds between carbons

What is the most abundant organic molecule in the body?

• water

• carbohydrate

• lipid

• nucleic acid

• protein