What level of protein structure is associated with the folding of coils and sheets to form a hollow region through

which substances can move into and out of cells?
a. primary
b. secondary
c. tertiary
d. quaternary
e. binary


ANSWER: c

Biology & Microbiology

You might also like to view...

After microRNAs are transcribed, processed, and folded into stem-and-loop hairpin structures, specialized enzymes cleave the miRNAs to double-stranded fragments that are typically around 20-25 nucleotides long

A. true B. false

Biology & Microbiology

The last shared ancestor for today's cell types is thought to have arisen about _____ years ago.

A. 5 million B. 2 million C. 3 billion D. 4 billion E. 6 billion

Biology & Microbiology

Which of the following is NOT considered a peripheral lymphoid tissue?

A) bone marrow B) spleen C) appendix D) adenoids E) tonsils

Biology & Microbiology

Which statement helps to explain why ice is less dense than liquid water? (2)

What will be an ideal response?

Biology & Microbiology