AND PHYSIOLOGY 1, STRAIGHTERLINE A&P 1
CUMULATIVE FINAL QUESTIONS WITH 100%
CORRECT ANSWERS 2025
What is the smallest level of organization in the body that contains the body's genetic information?
Select one:
a. chemical
b. cellular
c. tissue
d. organism - correct answer-B. Cellular
The cellular level includes the nucleus, an organelle that contains the body's genetic information.
Which is an example of a normally occurring positive-feedback mechanism?
Select one:
a. elevated blood pressure during exercise
b. increase in heart rate after blood loss
c. decrease in blood pressure after blood loss
d. stretching of the uterus near the end of pregnancy - correct answer-
d. stretching of the uterus near the end of pregnancy
WhichSof the following processes generates the most ATP within a human cell?
Select one:
a. glycolysis
b. lactic acid fermentation
c. oxidative phosphorylation
d. citric acid cycle - correct answer-c. oxidative phosphorylation
,During DNA replication, how does each template strand eventually become two identical DNA molecules
?
Select one:
a. The two strands form continuously, catalyzed by DNA polymerase.
b. The two strands form continuously, catalyzed by DNA ligase.
c. One strand forms continuously, the other forms in short segments spliced by DNA polymerase.
d. One strand forms continuously, the other forms in short segments spliced by DNA ligase. -
correct answer-
d. OneSstrand forms continuously, the other forms in short segments spliced by DNA ligase.
WhichSis the most superficial layer of skin that is composed primarily of living cells?
Select one:
a. stratum corneum
b. stratum lucidum
c. stratum basale
d. stratum spinosum - correct answer-d. stratum spinosum
WhichSof the following is the definition of a third degree burn?
Select one:
a. aSburnSthat covers at least 25% of the skin
b. a burn that has destroyed the dermis and epidermis
c. a burn that can only be caused by fire
d. a burn that does not leave scars - correct answer-b. a burn that has destroyed theSdermis and epidermis
WhichSof the following types of openings in the skeletal system does a "sinus" describe?
Select one:
a. cavity
b. cleft
c. hole
d. tunnel - correct answer-a. cavity
,WhichSof the following components of the bone matrix, when removed, allows the bone to be easily shatt
ered?
Select one:
a. cartilage
b. collagen
c. hydroxyapatite
d. mineral - correct answer-b. collagen
WhichSof the following is the most widely distributed type of muscle in the body?
Select one:
a. cardiac
b. postural
c. skeletal
d. smooth - correct answer-d. smooth
Which sentence best describes the sliding filament model of muscle contraction?
Select one:
a. Actin and myosin filaments remain stationary.
b. Actin and myosin myofilaments shorten.
c. Sarcomeres and myofibrils contract.
d. Sarcomeres and myofibrils lengthen. - correct answer-c. Sarcomeres and myofibrils contract.
doctor performing an autopsy onSa patient concludes that part of the brain was likely damaged by trauma
due to a large population of which type of cell?
Select one:
a. Schwann cells
b. microglia
c. oligodendrocytes
d. ependymal cel - correct answer-b. microglia
What type of axons is found in a gray ramus comunicans?
, Select one:
a. myelinated, pre-ganglionic axons
b. myelinated, post-ganglionic axons
c. unmyelinated, pre-ganglionic axons
d. unmyelinated, post-ganglionic axons - correct answer-d. unmyelinated, post-ganglionic axons
WhichSclass of chemical messengers is secreted by neurons into synaptic clefts to activate anSadjacent cell
?
Select one:
a. autocrine
b. endocrine
c. neurotransmitter
d. paracrine - correct answer-c. neurotransmitter
The targeted response of the hormone lipotropin is an increase in which of the following?
Select one:
a. the breakdown of fat in adipose tissues
b. the breakdown of lipids and release of fatty acids from cells
c. the production of milk in lactating women
d. the secretion of thyroid hormone - correct answer-a. the breakdown of fat in adipose tissues
The articulations between the radius and ulna that allow for rotation of theSforearm is an example of a(n)
joint.
A. plane
B. pivot
C. hinge
D. ellipsoid - correct answer-B. pivot
In order to increase low blood glucose levels back to normal, the pancreas increases secretion of
_.
A. somatostatin