PNB 2274 EXAM I PRACTICE QUESTIONS
AND ANSWERS WITH 100% VERIFIED
ANSWERS
\.the elbow is _____ to the wrist
a. lateral
b. medial
c. distal
d. proximal - ANSWERS✔-d. proximal
\.your body temperature rises, this ______ is sensed by _____ and in response
information is carried by ________ to activate the secretion of sweat
a. set point; receptors; the efferent pathway
b. stimulus; receptors; the efferent pathway
c. stimulus; the brain; the afferent pathway
d. set point; receptors; effectors
e. feedback; the brain; receptors - ANSWERS✔-b. stimulus; receptors; the efferent
pathway
\.adipose tissue is different than a tendon due to:
,a. the unique combo of proteins present in the ECM
b. the degree of cellularity
c. increased ground substance in the matrix
d. all of the above - ANSWERS✔-d. all of the above
\.the major categories of tissue are:
a. nervous, musculoskeletal, epithelial, blood
b. blood, bone, muscle, nervous
c. muscle, nervous, connective, epithelial
d. skin, neuromuscular, organ, collagen - ANSWERS✔-c. muscle, nervous,
connective, epithelial
\.a tear in the blood vessel that exposures collagen to blood activates platelets to
become sticky and secrete chemical signals, which cause more platelets to
become sticky and secrete the same chemical signals. this is an example of _____
control
a. closed loop, negative feedback
b. closed loop, positive feedback
c. feed-forward
d. open-loop, positive feedback - ANSWERS✔-b. closed loop, positive feedback
,\.a cell is taken out of he body and placed into a test solution. the concentration
of solute X in the test solution is 100mM, and the concentration of solute X inside
the cell is 200mM. The cell membrane is permeable to water but not solute X.
Which of the following statements is/are true?
a. there is a net flux of water out of the cell
b. the test solution is hypertonic
c. there is a flux of water molecules into and out of the cell
d. all of the above - ANSWERS✔-c. there is a flux of water molecules into and out
of the cell
\.which is NOT a connective tissue cell
a. bone cells
b. skeletal muscle
c. cartilage cells
d. fat cells
e. blood cells - ANSWERS✔-b. skeletal muscle
\.which is NOT a feature of connective tissue?
a. protein fibers in the matrix
b. glycosaminoglycan molecules in the matrix
c. cells
, d. apical surface - ANSWERS✔-d. apical surface
\.the most abundant tissue within the body is:
a. muscle
b. connective tissue
c. nervous tissue
d. epithelial tissue - ANSWERS✔-b. connective tissue
\.which of the following situations best represents a homeostatic mechanism?
a. a person who becomes very nervous begins to sweat
b. after going outside on a hot day, the core body temp rises
c. after eating large batch of salt popcorn, levels of salt in the urine increase
d. as age increases, the amount of calcium in bones tend to decrease
e. all of the above - ANSWERS✔-c. after eating large batch of salt popcorn, levels
of salt in the urine increase
\.one of the contributing factor to the onset of cerebrovascular disease is a loss of
electrical and chemical communication between adjacent neurons and glial cells
inside the brain. one potential therapeutic approach might be to design a drug
that increases the expression of:
a. desmosomes
AND ANSWERS WITH 100% VERIFIED
ANSWERS
\.the elbow is _____ to the wrist
a. lateral
b. medial
c. distal
d. proximal - ANSWERS✔-d. proximal
\.your body temperature rises, this ______ is sensed by _____ and in response
information is carried by ________ to activate the secretion of sweat
a. set point; receptors; the efferent pathway
b. stimulus; receptors; the efferent pathway
c. stimulus; the brain; the afferent pathway
d. set point; receptors; effectors
e. feedback; the brain; receptors - ANSWERS✔-b. stimulus; receptors; the efferent
pathway
\.adipose tissue is different than a tendon due to:
,a. the unique combo of proteins present in the ECM
b. the degree of cellularity
c. increased ground substance in the matrix
d. all of the above - ANSWERS✔-d. all of the above
\.the major categories of tissue are:
a. nervous, musculoskeletal, epithelial, blood
b. blood, bone, muscle, nervous
c. muscle, nervous, connective, epithelial
d. skin, neuromuscular, organ, collagen - ANSWERS✔-c. muscle, nervous,
connective, epithelial
\.a tear in the blood vessel that exposures collagen to blood activates platelets to
become sticky and secrete chemical signals, which cause more platelets to
become sticky and secrete the same chemical signals. this is an example of _____
control
a. closed loop, negative feedback
b. closed loop, positive feedback
c. feed-forward
d. open-loop, positive feedback - ANSWERS✔-b. closed loop, positive feedback
,\.a cell is taken out of he body and placed into a test solution. the concentration
of solute X in the test solution is 100mM, and the concentration of solute X inside
the cell is 200mM. The cell membrane is permeable to water but not solute X.
Which of the following statements is/are true?
a. there is a net flux of water out of the cell
b. the test solution is hypertonic
c. there is a flux of water molecules into and out of the cell
d. all of the above - ANSWERS✔-c. there is a flux of water molecules into and out
of the cell
\.which is NOT a connective tissue cell
a. bone cells
b. skeletal muscle
c. cartilage cells
d. fat cells
e. blood cells - ANSWERS✔-b. skeletal muscle
\.which is NOT a feature of connective tissue?
a. protein fibers in the matrix
b. glycosaminoglycan molecules in the matrix
c. cells
, d. apical surface - ANSWERS✔-d. apical surface
\.the most abundant tissue within the body is:
a. muscle
b. connective tissue
c. nervous tissue
d. epithelial tissue - ANSWERS✔-b. connective tissue
\.which of the following situations best represents a homeostatic mechanism?
a. a person who becomes very nervous begins to sweat
b. after going outside on a hot day, the core body temp rises
c. after eating large batch of salt popcorn, levels of salt in the urine increase
d. as age increases, the amount of calcium in bones tend to decrease
e. all of the above - ANSWERS✔-c. after eating large batch of salt popcorn, levels
of salt in the urine increase
\.one of the contributing factor to the onset of cerebrovascular disease is a loss of
electrical and chemical communication between adjacent neurons and glial cells
inside the brain. one potential therapeutic approach might be to design a drug
that increases the expression of:
a. desmosomes
