Which of the following describes the atomic makeup of the backbone unit of a protein?
A) 2 carbon atoms, 2 nitrogen atoms, 2 oxygen atoms
B) 3 carbon atoms, 2 nitrogen atoms, 2 oxygen atoms, 1 hydrogen atom
C) 3 carbon atoms, 1 nitrogen atom, 1 oxygen atom, 1 hydrogen atom
D) 3 carbon atoms, 2 nitrogen atoms, 2 oxygen atoms, 2 hydrogen atoms
C
You might also like to view...
Mining of aluminum-rich bauxite ore contributes to ________
A) soil fertility B) desertification C) coastal degradation D) soil erosion E) deforestation
Which of the following would be the IUPAC name for the ether commonly called ethyl methyl ether?
A) ethoxymethane B) ethoxyethane C) methoxymethane D) methoxyethane
When will an area experience high tide?
A. when the moon is directly overhead or on the opposite side of Earth B. in the early afternoon when water temperatures are highest C. when there is a quarter moon in the sky D. during a period of intense sunspot activity
The boundary between the stratosphere and the mesosphere is called the ________.
A) tropopause B) stratopause C) ionopause D) mesopause