Bio 168 EXAM 2 || Most Recent Exam Actual Complete Real Exam Questions And Correct Answers (Verified Answers) Already Graded A+ | Newest Exam | Just Released!!

Bio 168 EXAM 2 || Most Recent Exam 2026-2027
Actual Complete Real Exam Questions And
Correct Answers (Verified Answers) Already
Graded A+ | Newest Exam | Just Released!!




What can a deficiency of growth hormone during bone
formation cause?
A) inadequate calcification
of bone
B) decreased osteoclast
activity
C) decreased epiphyseal plate
activity
D) increased osteoclast activity -
ANSWER -C


Which of the following is implicated in osteoporosis in older
women?
A) poor posture

B) estrogen deficiency due to menopause

C) heritage such as African or Mediterranean

D) abnormal PTH receptors - ANSWER -B

,Which of the following is the single most important stimulus for
epiphyseal plate
activity during infancy and
childhood?
A) parathyroid
hormone
B)
calcium
C) growth
hormone
D) thyroid hormone -
ANSWER -C


Which of the following is not a function of the
skeletal system?
A)
support
B) storage of
minerals
C) production of blood cells
(hematopoiesis)
D) communication -
ANSWER -D


What is the structural unit of compact bone?
A) osseous matrix

B) spongy bone

C) lamellar bone

, D) the osteon - ANSWER -D



Bones are constantly undergoing resorption (breaking down
bone) for various
reasons. Which of the following cells accomplishes
this process?
A)
osteoclast
B) osteocyte

C) osteoblast

D) stem cell - ANSWER -A



Which hormone increases osteoclast activity to release more
calcium ions into
the
bloodstream?
A)
calcitonin
B)
thyroxine
C) parathyroid
hormone
D) estrogen -
ANSWER -C


Which bone would likely take the longest to heal?
A) thigh bone of a young individual

B) finger bone of an elderly individual