PORTAGE PATHOPHYSIOLOGY EXAM 1
Questions and Answers
1. True/False
Persistent metaplasia can lead to dysplasia.
ANS true
2. True/False
Barrett esophagus is an example of dysplasia.
ANS false (Barrett's esophagus is META-plasia)
3. True/False
Persistent dysplasia eventually results in cancer.
ANS true
4. True/False
Hypertrophy can occur under normal and pathological conditions.
ANS true
5. Match definitions for; sensitivity, reliability, validity, specificity;
Sensitivity; proportion of people WITH a disease that test positive for the disease
Reliability; likelihood of getting same result with repeat testing
Validity; HOW a tool measures what it is intended to
1/
6
, measure
Specificity; people WITHOUT a disease who test negative for the disease
6. Which are true of the mitochondria? Select all that apply.
ANS It is involved in cellular respiration
They play a role in apoptosis
7. Which of the following are true of the cell? Select all that apply.
ANS Proteins carry out the functions of the cell membrane
Lysosomes are the digestive system of the cell
Microfilaments are thin, threadlike cytoplasmic
structures
8. Which are true of the cell membrane? Select all that apply.
ANS Controls the transport of
materials from the outside fluids to within
Helps with the conduction of electrical currents in nerve and muscle
cells Aids in the regulation of cell growth and proliferation
9. Which are false of the mitochondria? Select all that apply.
ANS They are found far from the
site of energy consumption
They control free radicals
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6
Questions and Answers
1. True/False
Persistent metaplasia can lead to dysplasia.
ANS true
2. True/False
Barrett esophagus is an example of dysplasia.
ANS false (Barrett's esophagus is META-plasia)
3. True/False
Persistent dysplasia eventually results in cancer.
ANS true
4. True/False
Hypertrophy can occur under normal and pathological conditions.
ANS true
5. Match definitions for; sensitivity, reliability, validity, specificity;
Sensitivity; proportion of people WITH a disease that test positive for the disease
Reliability; likelihood of getting same result with repeat testing
Validity; HOW a tool measures what it is intended to
1/
6
, measure
Specificity; people WITHOUT a disease who test negative for the disease
6. Which are true of the mitochondria? Select all that apply.
ANS It is involved in cellular respiration
They play a role in apoptosis
7. Which of the following are true of the cell? Select all that apply.
ANS Proteins carry out the functions of the cell membrane
Lysosomes are the digestive system of the cell
Microfilaments are thin, threadlike cytoplasmic
structures
8. Which are true of the cell membrane? Select all that apply.
ANS Controls the transport of
materials from the outside fluids to within
Helps with the conduction of electrical currents in nerve and muscle
cells Aids in the regulation of cell growth and proliferation
9. Which are false of the mitochondria? Select all that apply.
ANS They are found far from the
site of energy consumption
They control free radicals
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6
