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STRAIGHTERLINE ANATOMY& PHYSIOLOGY FINAL, QUESTIONS WITH ACCURATE ANSWERS
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STRAIGHTERLINE ANATOMY& PHYSIOLOGY FINAL, QUESTIONS WITH ACCURATE ANSWERS
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STRAIGHTERLINE ANATOMY& PHYSIOLOGY FINAL,QUESTIONS WITH ACCURATE ANSWERS
What is the smallest level of organization in the body that contains the body's
genetic information?
a. chemical
b. cellular
c. tissue
d. organism Accurate Answer - 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 Accurate Answer
- d. stretching of the uterus near the end of pregnancy
Which of 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 Accurate 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. Accurate Answer - d. One strand forms continuously,
the other forms in short segments spliced by DNA ligase. There is a leading
strand and a lagging strand; they don't both form continuously.
Which is the most superficial layer of skin that is composed primarily of living
cells?
Select one:
a. stratum corneum
b. stratum lucidum
c. stratum basale spinosum.
d. stratum spinosum Accurate Answer - .
d. stratum spinosum (stratum basale layer is below the stratum spinosum)
Which of the following is the definition of a third degree burn?
Select one:
a. a burn that 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 Accurate Answer - a burn that has
destroyed the dermis and epidermis. How much skin the burn covers does not
definite which degree of burn it is.
Which of the following types of openings in the skeletal system does a "sinus"
describe?
Select one:
a. cavity
b. cleft
c. hole
d. tunnel Accurate Answer - a. cavity: a sinus is an air space within
bone.
Which of the following components of the bone matrix, when removed, allows
the bone to be easily shattered?
Select one:
,a. cartilage
b. collagen
c. hydroxyapatite
d. mineral Accurate Answer - b. Collagen is a component of the bone
matrix that gives it flexible strength so it is less brittle.
Which of the following is the most widely distributed type of muscle in the
body?
Select one:
a. cardiac
b. postural
c. skeletal
d. smooth Accurate 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. Accurate Answer - c.
Sarcomeres and myofibrils contract. The shortening of sarcomeres is
responsible for contraction, and thus myofibrils (sarcomeres joined end to
end) also shorten
A doctor performing an autopsy on a 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 cells Accurate 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 Accurate Answer - d.
unmyelinated, post-ganglionic axons
Which class of chemical messengers is secreted by neurons into synaptic clefts
to activate an adjacent cell?
Select one:
a. autocrine
b. endocrine
c. neurotransmitter
d. paracrine Accurate Answer - c. neurotransmitter Neurotransmitters
are secreted into a synaptic cleft by presynaptic nerve terminals.
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 This is caused
by release of growth hormone.
c. the production of milk in lactating women
d. the secretion of thyroid hormone Accurate Answer - a. the
breakdown of fat in adipose tissues
What causes the breakdown of lipids and release of fatty acids from cells?
Accurate Answer - The release of growth hormones.
There are more microbial cells than human cells in your body and the health
of this microbiota clearly influences human well-being. How many microbes
are there?.
Select one:
a. For every cell in your body, there are ten microbial cells.
b. For every cell in your body, there are one hundred microbial cells.
c. For every cell in your body, there are one thousand microbial cells.
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