An amino acid is an organic molecule that contains both an amine group and a carboxyl group. At an acidic pH, which structure is most likely?

A. Structure (a)
B. Structure (b)
C. Structure (c)
D. All three structures are equally possible.


Answer: C

Environmental & Atmospheric Sciences

You might also like to view...

When making decisions about what safety systems should be required in cars or airplanes, the ___________________ will only approve rules where the estimated cost per life saved is __________ or less.

A. U.S. Senate; $5 million B. U.S. Congress; $2 million C. Environmental Protection Agency; $3 million D. Environmental Regulation Agency; $7 million

Environmental & Atmospheric Sciences

All of the following will likely be impacts of global climate change on sea levels except ________

A) greater storm surges B) receding coastlines C) coastal flooding D) salt water intrusion into aquifers E) increasing beach erosion

Environmental & Atmospheric Sciences

Scientific thinking

A. searches for cause-and-effect relationships. B. is rational thinking. C. both of these D. none of the above

Environmental & Atmospheric Sciences

Large sandy areas of mobile sand dunes are called seif dunes

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences