Science Bowl

BIOLOGY

Biology - 42

BIOL-91; Multiple Choice:  Which of the following is NOT a component of chromosomes?

a)  histones
b)  non-histone proteins
c)  DNA
d)  RNA

ANSWER:  D -- RNA

BIOL-91; Multiple Choice:  Cell membranes are composed of: 

a)  proteins
b)  plasmids
c)  nucleopores
d)  lysosomes

ANSWER:  A -- PROTEINS

BIOL-91; Multiple Choice:  Between the layers of phospholipids in a cell membrane, there is an
area that is:

a)  hydrophobic

(pron: high-dro-fo-bick)

b)  hydrophillic

(pron: high-dro-fill-ick)

c)  hygroscopic

(pron: high-grow-scop-ick)

d)  hygrolipic

(pron: high-grow-lip-ick)

ANSWER:  A -- HYDROPHOBIC

BIOL-91; Multiple Choice:  The random movement of particles in solution towar a uniform
distribution is termed:

a)  osmosis
b)  repulsion
c)  diffusion
d)  facilitated diffusion

ANSWER:  C -- DIFFUSION