Identify the elemental makeup of proteins.
a. carbon, hydrogen, and oxygen
b. carbon, hydrogen, and oxygen in a 1: 2: 1 ratio
c. carbon, hydrogen, oxygen, nitrogen, and phosphorus
d. carbon, hydrogen, oxygen, and nitrogen

What is the role of the phospholipid belayer in cellular transport in living cells

Which best describes a benefit of using dna technology in medicine? a) medicine can be produced in mass quantities. b) medicine can be distributed at a reduced cost. c) medicines have fewer side effects. d) medicines are resistant to antibiotics.

If a cell is placed into a hypertonic environment,what will happen to it ? a)it will shrink or shrivel b)nothing c)it will burst d) it will expand or enlarge