BIO 322 FINAL EXAM QUESTIONS AND ANSWERS GRADED A+
If Claire has a hematocrit of 24 and a plasma glucose
concentration of 80 mg/dl, how much glucose does she have in
her plasma? - correct answer 96 mg
Calculate the amount of K+ in plasma. Assume that the
hematocrit is 50 and that there are 5 L of blood in your patient.
The MW of K+ is 35 g/mol. - correct answer 12.5 mmol
During the flu season and during allergy season some physicians
recommend using a nasal rinse. These solutions are made with
a buffer to regulate pH, and are hyper-tonic. Why would rinsing
mucous membranes in your nose help to reduce symptoms like
a runny nose? - correct answer A hyper-tonic solution shrinks cells in
the nasal membranes and reduce symptoms.
,BIO 322 FINAL EXAM
What are the main neurotransmitters for the sympathetic and
parasympathetic nervous systems? - correct answer Sympathetic =
fight or flight = epinephrine. Parasympathetic =rest and digest =
acetylcholine.
Where is an interstitial cell in males and what does it do? - correct
answer It is located in the wall of the seminiferous tubule and it
secrets testosterone.
What is a nurse cell in males? - correct answer These cells surround
and support developing spermatocytes in the wall of the
seminiferous tubules.
Where does a spermatozoon develop and how does it leave the
body? - correct answer Spermatids develop throughout life in the
testes and epididymis. Sperm move through the ductus
deferens (vas deferens), and leave the body via the urethra.
Isotonic saline contains 150 mM NaCl. What is the
concentration of Na+ and Cl- in this solution? - correct answer Na+ =
150 mM and Cl- = 150 mM
What is meiosis and mitosis? - correct answer Meiosis is called a
reduction division since it reduces the number of
, BIO 322 FINAL EXAM
chromosomes. It occurs during production of gametes. Mitosis
is part of the process of somatic cell division.
What is the blood testes barrier? - correct answer It is formed by
nurse cells and it isolates the seminiferous tubules from the
general circulation.
The decline in levels of progesterone and estrogen that
accompany degeneration of the corpus luteum - correct answer
Results in menses or destruction of the functional zone of the
endometrium.
Oocytes - correct answer Are produced in the ovary and enter
uterine tube via the infundibulum, and implant in the uterine
wall if fertilization occurs.
What statement is correct? - correct answer 1. The follicular phase
of the ovarian cycle overlaps with the luteal phase of the
uterine cycle.
2. The two phases of the uterine cycle include follicular and
luteal.
3. The three uterine phases include menses, proliferative, and
secretory.