All of the following are composed primarily of proteins EXCEPT

a. enzymes.
b. cytoskeleton.
c. antibodies.
d. DNA.


D

Biology & Microbiology

You might also like to view...

Which general organic compound forms ringed carbon structures?

a. Aromatic hydrocarbons b. Chlorofluorocarbons c. Aliphatic hydrocarbons d. Hydrostatic hydrocarbons

Biology & Microbiology

The larger the initial size of a population, the faster it can reach K

a. true b. false

Biology & Microbiology

A predator-prey relationship, such as between roadrunners and lizards

a) is usually a cause of extinction of one of the species b) leads to related increases and decreases in the populations of both species c) represents competition between species d) contributes to exponential growth of the predator species

Biology & Microbiology

Which type of cell is severely depressed in AIDS patients?

A. helper T-cells B. suppressor T-cells C. plasma cells D. cytotoxic T-cells E. B-cells

Biology & Microbiology