FINAL EXAM QUESTIONS AND ANSWERS WITH
VERIFIED
A coenzyme may be made from
riboflavin (vitamin B2).
iron.
zinc.
copper. - correct answer- riboflavin (vitamin B2).
A female infant is born with several hundred oocytes, each one
genetically unique. This is due to
independent assortment and random crossover in meiosis.
recessive inheritance.
mutation.
,chromosome deletion. - correct answer- independent
assortment and random crossover in meiosis.
A good example of a positive feedback mechanism would be
enhancement of labor contractions by oxytocin.
regulating glucose levels in the blood.
blood calcium level regulation.
body temperature regulation. - correct answer-
enhancement of labor contractions by oxytocin.
A man has been told that he is not synthesizing enough follicle-
stimulating hormone (FSH), and for this reason he may be
unable to father a child. Choose the correct statement to explain
this problem.
The man must be producing progesterone, which inhibits the
synthesis of FSH.
FSH stimulates sperm production in the testes.
,The physician is wrong - a hormone made in the
adenohypophysis could not influence fertility.
FSH stimulates estrogen secretion by ovarian cells; therefore it
is not synthesized by males. - correct answer- FSH
stimulates sperm production in the testes.
An essential conponent of the maculae involved in static
equilibrium is (are) the
organ of Corti.
otoliths.
cupula.
scala media. - correct answer- otoliths.
An exergonic reaction is one in which
electrons are added to a molecule.
electrons are removed from a molecule.
, the products have more free energy than the reactants.
the reactants have more free energy than the products. -
correct answer- NOT SURE: either...
the products have more free energy than the reactants.
the reactants have more free energy than the products.
Calcium ions bind to the ________ molecule in skeletal muscle
cells.
myosin
troponin
tropomyosin
actin - correct answer- troponin
Catabolism involves processes that
break down complex structures to simpler ones.
mobilize fat during the postabsorptive state.