After eating eggs for breakfast, you return in the evening, dunk the dirty dishes in water, and notice the yellow streaks remain "dried on." However, after soaking awhile, the complex of various egg yolk molecules easily "washes off." What has happened?
A. Heating denatured the egg protein molecules, hydrolysis reactions then formed bonds in the dried egg, and soaking in water eventually resulted in condensation reactions where water broke these bonds.
B. Heating denatured the egg protein molecules, unorganized condensation reactions then formed bonds in the drying egg, and soaking in water eventually resulted in hydrolysis reactions where water broke these bonds.
C. The egg monomers were fused to become one polymer, which was easily dissolved by water back into monomers.
D. The presence or absence of water changes the molecules from hydrophilic to hydrophobic respectively.
E. The addition of water converted organic molecules into inorganic molecules.
Answer: B. Heating denatured the egg protein molecules, unorganized condensation reactions then formed bonds in the drying egg, and soaking in water eventually resulted in hydrolysis reactions where water broke these bonds.
You might also like to view...
True or false: Because water is so abundant on Earth, oxygen and hydrogen make up a majority of the known matter of the universe
A. true B. false
Stromatolites are ________
a. mineral features in caves that extend downward from the ceiling b. the earliest type of seed plant c. mat-like remains of bacteria found in extinct hydrothermal vents d. dome-shaped, layered structures formed by photosynthetic bacteria
Nutrients pass through this
a. A b. B c. C d. D e. E
Consider the following segment of a food web: Snails and grasshoppers eat pepper plants; spiders eat grasshoppers; shrews eat snails and spiders; and owls eat shrews. The shrew occupies the trophic level(s) of __________.
a. primary consumer b. secondary consumer c. tertiary consumer d. primary and secondary consumer e. secondary and tertiary consumer