QUESTIONS FOR BIO 163 EXAM(ACTUAL
EXAM) WITH CORRECT ACTUAL
QUESTIONS AND CORRECTLY WELL
DEFINED ANSWERS LATEST ALREADY
GRADED A+ 2026
Visual information is carried to the brain by the
a) Iris
b) Choroid
c) Sclera
d) Optic nerve - ANSWERS-d) Optic nerve
Exocrine glands secretions are ____ whereas endocrine
gland secretions are ____
a) Ducted... released directly into the blood
b) Released directly into the blood... ducted
,c) Ducted... ducted
d)Released directly into the blood... released directly into
the blood - ANSWERS-a) Ducted... released directly into the
blood
These hormones are made in the hypothalamus and stored
in the posterior pituitary:
a) ADH and oxytocin
b) MSH and HGH
c) FSH and LH
d) Prolactin and TSH - ANSWERS-a) ADH and oxytocin
Steroid hormone receptors are found here:
a) Inside the cell
b) On the surface of the cell
c) In the mitochondria
d) They do not have receptors - ANSWERS-a) Inside the cell
This anterior pituitary hormone affects the epiphyseal plate,
as well as other body tissues
a) Epinephrine
b) Oxytocin
,c) Growth hormone
d) Prolactin - ANSWERS-c) Growth hormone
Signal amplification is most likely with this type of receptor:
a) Steroid hormone receptors
b) Peptide hormone receptors
c) Trophic hormone receptors
d) Thyroid hormone receptors - ANSWERS-b) Peptide
hormone receptors
This hormone from the posterior pituitary is important for
regulating water balance in the body by determining how
much water is lost/ not lost to urine.
a) MSH
b) ACTH
c) ADH
d) Prolactin - ANSWERS-c) ADH
This hormone is important for initiating labor and delivery
at the end of pregnancy:
a) Thyroid hormone
b) Oxytocin
, c) Insulin
d) Mineral corticoids - ANSWERS-b) Oxytocin
The transmission of endocrine signals occurs through
a) Synapses
b) Blood
c) Lymph
d) Interstitial fluid - ANSWERS-b) Blood
In a neutral atom, which of the following is always true?
a) Protons = electrons
b) Protons = neutrons
c) Electrons = neutrons
d) Protons = neutrons = electrons - ANSWERS-a) Protons =
electrons
Buffers are important in the body because
a) The human body cannot absorb free radicals
b) If body pH is too low, buffers release toxic particles
c) Body cells can only function properly in a very narrow pH
range