BIO 256 FINAL EXAM QUESTIONS
AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS)
A coenzyme may be made from - correct answer-
riboflavin (vitamin B2)
A good example of a positive feedback mechanism would be -
correct answer- enhancement of labor contractions by
oxytocin.
A low secretion of luteinizing hormone (LH) in the otherwise
normal male adult would cause - correct answer-
decreased testosterone secretion
Adipose tissue produces _____, sending an important satiety
signal to your hypothalamus, which controls your sense of
hunger. - correct answer- leptin
After completion of meiosis, the human egg and sperm are
similar because - correct answer- they have the same
number of chromosomes
,All of the following statements referring to the uterine cycle are
true except - correct answer- FSH and LH directly
promote development of the uterine endometrium
An increase in the permeability of the cells of the collecting
tubule to water is due to - correct answer- an increase in
the production of ADH
Anabolism includes reactions in which - correct answer-
larger molecules or structures are built from smaller ones
Anions have a ____ charge and are formed when they have ____
an electron to/from a cation. - correct answer- negative,
gained
Bile secretion and production is promoted by - correct
answer- secretin
Blood flow to a tissue increases if - correct answer-
vasodilation increases
Blood flow to the skin - correct answer- increases when
environmental temperature rises
, Digestion of milk sugar requires - correct answer- lactase
Electrolyte balance - correct answer- may be disturbed
due to higher loss of electrolytes on hot days.
Erectile tissues of the penis are filled with - correct answer-
blood sinuses
Heart sounds other than those caused by closing of valves are
called - correct answer- murmurs
Hormones often cause a cell to elicit multiple responses; this is
because - correct answer- the protein kinases are rapidly
metabolized
How do the active sites of enzymes contribute to the catalysis of
a chemical reaction? - correct answer- Active sites bring
substrates together, and may also strain the chemical bonds of
the substrates, both helping a reaction to proceed more quickly
by decreasing the activation energy.
AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS)
A coenzyme may be made from - correct answer-
riboflavin (vitamin B2)
A good example of a positive feedback mechanism would be -
correct answer- enhancement of labor contractions by
oxytocin.
A low secretion of luteinizing hormone (LH) in the otherwise
normal male adult would cause - correct answer-
decreased testosterone secretion
Adipose tissue produces _____, sending an important satiety
signal to your hypothalamus, which controls your sense of
hunger. - correct answer- leptin
After completion of meiosis, the human egg and sperm are
similar because - correct answer- they have the same
number of chromosomes
,All of the following statements referring to the uterine cycle are
true except - correct answer- FSH and LH directly
promote development of the uterine endometrium
An increase in the permeability of the cells of the collecting
tubule to water is due to - correct answer- an increase in
the production of ADH
Anabolism includes reactions in which - correct answer-
larger molecules or structures are built from smaller ones
Anions have a ____ charge and are formed when they have ____
an electron to/from a cation. - correct answer- negative,
gained
Bile secretion and production is promoted by - correct
answer- secretin
Blood flow to a tissue increases if - correct answer-
vasodilation increases
Blood flow to the skin - correct answer- increases when
environmental temperature rises
, Digestion of milk sugar requires - correct answer- lactase
Electrolyte balance - correct answer- may be disturbed
due to higher loss of electrolytes on hot days.
Erectile tissues of the penis are filled with - correct answer-
blood sinuses
Heart sounds other than those caused by closing of valves are
called - correct answer- murmurs
Hormones often cause a cell to elicit multiple responses; this is
because - correct answer- the protein kinases are rapidly
metabolized
How do the active sites of enzymes contribute to the catalysis of
a chemical reaction? - correct answer- Active sites bring
substrates together, and may also strain the chemical bonds of
the substrates, both helping a reaction to proceed more quickly
by decreasing the activation energy.
