Science Bowl

BIOLOGY

Biology - 11

BIOL-91; Multiple Choice:  In mammals, the primary function of the loop of Henle is:

a)  reabsorption of water
b)  water secretion
c)  ammonia secretion
d)  bicarbonate reabsorption

ANSWER:   A -- REABSORPTION OF WATER

BIOL-91;  Short Answer:  What is the name of the phenomenon that occurs when tissue culture is
infected with one type of virus that causes the culture to resist infection by a second type of virus?

ANSWER:  VIRAL INTERFERENCE   or   INTERFERENCE

BIOL-91;  Short Answer:  What are gas bubbles which form within plant cells o in blood known
as?

ANSWER:  EMBOLISM

BIOL-91;  Short Answer:  What are the water conducting cells in non-flowering vascular plants
know as?

ANSWER:  TRACHEIDS

BIOL-91;  Short Answer:  On a dry day, water diffuses out of the intercellula spaces of the leaf
through what part of the leaf?

ANSWER:  STOMATA

BIOL-91;  Short Answer:  A clogging of the bile duct interferes with the digestion of what
category of food?

ANSWER:  FATS  or  LIPIDS  or  FAT SOLUBLE VITAMINS

BIOL-91; Short Answer:  What is the name given to the jellylike substance filling the chamber
behind the lens of the human eye?

ANSWER:  vitreous body      vitreous humor