BIOL122 HUMAN BIOLOGICAL SCIENCE 2
ASSESSMENT 2 VODCAST | EXTRINSIC
ASTHMA & TYPE 2 DIABETES CASE
STUDY | PATHOPHYSIOLOGY,
PHARMACOLOGY & ANNOTATED
BIBLIOGRAPHY | 2026/2027 UPDATED |
QUESTIONS 1-200 AND ANSWERS
Note: These are original exam-style practice questions based on the assessment topic
you provided. They are not official Australian Catholic University assessment
questions or a reproduced answer key.
INTRODUCTION
BIOL122 Human Biological Science 2 Assessment 2, centred on an extrinsic asthma
and Type 2 diabetes case study, requires students to integrate anatomy, physiology,
pathophysiology, pharmacology, clinical reasoning, and evidence-based
communication. A strong response requires more than recalling disease definitions:
students must explain how normal physiological mechanisms become disrupted,
connect symptoms to underlying pathology, distinguish therapeutic mechanisms from
adverse effects, and communicate scientific evidence accurately. The vodcast format
additionally requires the student to translate complex biological concepts into a clear,
logically structured explanation suitable for an academic audience. An annotated
bibliography component requires critical evaluation of scholarly evidence, including
relevance, credibility, currency, methodological quality, and appropriate application
to clinical claims. This practice bank is designed to challenge students with case-
based, application-level questions that require synthesis across respiratory, metabolic,
inflammatory, endocrine, and pharmacological concepts. Detailed rationales explain
both the correct answer and why competing alternatives are less appropriate, helping
students identify conceptual errors and strengthen their reasoning before completing
the assessment.
CORE DOMAINS TESTED
1.
Extrinsic asthma pathophysiology — airway inflammation,
bronchoconstriction, hyperresponsiveness, mucus production, and airflow
limitation.
1
, 2.
3.
Respiratory physiology — ventilation, airway resistance, gas exchange,
oxygenation, and carbon dioxide regulation.
4.
5.
Asthma immunopathology — allergen sensitisation, IgE, mast cells,
eosinophils, cytokines, and inflammatory mediators.
6.
7.
Asthma pharmacology — bronchodilators, inhaled corticosteroids,
leukotriene modifiers, combination therapy, mechanisms, and adverse effects.
8.
9.
Type 2 diabetes pathophysiology — insulin resistance, β-cell dysfunction,
hyperglycaemia, and metabolic dysregulation.
10.
11.
Glucose homeostasis — insulin, glucagon, hepatic glucose metabolism,
skeletal muscle glucose uptake, and feedback regulation.
12.
13.
Diabetes pharmacology — mechanisms and therapeutic roles of commonly
used glucose-lowering medications.
14.
15.
Complications of diabetes — vascular, renal, neurological, ocular, and
cardiovascular consequences of chronic hyperglycaemia.
16.
17.
Clinical reasoning — connecting signs, symptoms, mechanisms,
investigations, and treatment decisions.
18.
2
, 19.
Evidence-based communication — distinguishing correlation from causation
and interpreting scientific evidence.
20.
21.
Annotated bibliography skills — source credibility, relevance, currency,
methodological quality, synthesis, and citation.
22.
23.
Vodcast communication — organisation, scientific accuracy, audience
adaptation, visual explanation, and concise academic communication.
24.
QUESTIONS 1-100
Q1:
A patient with extrinsic asthma develops wheezing and chest tightness shortly after
exposure to a known environmental allergen. Which combination most directly
explains the rapid reduction in airway diameter?
A) Alveolar destruction and pulmonary capillary rupture
B) Bronchial smooth-muscle contraction, mucosal oedema, and increased mucus
secretion
C) Reduced pulmonary blood flow caused by left ventricular failure
D) Destruction of respiratory bronchioles caused by chronic infection
Rationale: The correct answer is B because acute allergic asthma can produce
bronchoconstriction, airway-wall oedema, and excessive mucus, together producing
marked airflow limitation. A is incorrect because alveolar destruction is
characteristic of emphysema rather than acute extrinsic asthma. C describes a
cardiovascular mechanism and does not explain the typical immediate asthmatic
response. D is incorrect because asthma does not primarily involve destructive loss of
respiratory bronchioles.
Q2:
A student states that asthma causes airflow obstruction solely because the bronchi
become physically blocked by mucus. Which response best corrects this interpretation?
A) Asthma is exclusively a disorder of pulmonary blood flow
B) Asthma causes permanent destruction of alveolar walls
3
, C) Airflow limitation results from interacting bronchoconstriction, airway
inflammation, oedema, and mucus hypersecretion
D) Asthma prevents oxygen from binding to haemoglobin
Rationale: The correct answer is C because asthma is multifactorial: smooth-muscle
contraction, inflammatory swelling, mucus, and airway hyperresponsiveness
collectively narrow the conducting airways. A is incorrect because pulmonary
perfusion is not the primary defect. B is incorrect because asthma generally causes
variable and reversible airway obstruction rather than primary alveolar destruction.
D is incorrect because haemoglobin binding is not the initiating defect.
Q3:
During an acute asthma episode, airway resistance rises substantially. Which change
most directly contributes to this increase?
A) Increased airway radius
B) Reduced mucus viscosity
C) Reduced airway radius caused by bronchoconstriction and airway-wall
swelling
D) Increased alveolar surface area
Rationale: The correct answer is C because airway resistance increases dramatically
as airway radius decreases. A would reduce resistance rather than increase it. B
would generally facilitate airflow rather than obstruct it. D is incorrect because
alveolar surface area does not directly determine resistance in the conducting
airways.
Q4:
A patient with allergic asthma asks why exposure to pollen can trigger symptoms
within minutes. Which mechanism provides the best explanation?
A) Pollen directly destroys alveolar epithelial cells
B) Pollen immediately increases red blood cell production
C) Previously sensitised immune pathways rapidly activate mast cells and release
bronchoconstrictive mediators
D) Pollen directly suppresses the diaphragm
Rationale: The correct answer is C because allergen exposure in a sensitised
individual can cross-link allergen-specific IgE on mast cells, producing rapid
mediator release and bronchoconstriction. A is not the typical mechanism. B has no
role in the acute response. D is incorrect because pollen does not directly inhibit
diaphragmatic contraction.
Q5:
Which immunological mechanism is most characteristic of classical extrinsic allergic
asthma?
4
ASSESSMENT 2 VODCAST | EXTRINSIC
ASTHMA & TYPE 2 DIABETES CASE
STUDY | PATHOPHYSIOLOGY,
PHARMACOLOGY & ANNOTATED
BIBLIOGRAPHY | 2026/2027 UPDATED |
QUESTIONS 1-200 AND ANSWERS
Note: These are original exam-style practice questions based on the assessment topic
you provided. They are not official Australian Catholic University assessment
questions or a reproduced answer key.
INTRODUCTION
BIOL122 Human Biological Science 2 Assessment 2, centred on an extrinsic asthma
and Type 2 diabetes case study, requires students to integrate anatomy, physiology,
pathophysiology, pharmacology, clinical reasoning, and evidence-based
communication. A strong response requires more than recalling disease definitions:
students must explain how normal physiological mechanisms become disrupted,
connect symptoms to underlying pathology, distinguish therapeutic mechanisms from
adverse effects, and communicate scientific evidence accurately. The vodcast format
additionally requires the student to translate complex biological concepts into a clear,
logically structured explanation suitable for an academic audience. An annotated
bibliography component requires critical evaluation of scholarly evidence, including
relevance, credibility, currency, methodological quality, and appropriate application
to clinical claims. This practice bank is designed to challenge students with case-
based, application-level questions that require synthesis across respiratory, metabolic,
inflammatory, endocrine, and pharmacological concepts. Detailed rationales explain
both the correct answer and why competing alternatives are less appropriate, helping
students identify conceptual errors and strengthen their reasoning before completing
the assessment.
CORE DOMAINS TESTED
1.
Extrinsic asthma pathophysiology — airway inflammation,
bronchoconstriction, hyperresponsiveness, mucus production, and airflow
limitation.
1
, 2.
3.
Respiratory physiology — ventilation, airway resistance, gas exchange,
oxygenation, and carbon dioxide regulation.
4.
5.
Asthma immunopathology — allergen sensitisation, IgE, mast cells,
eosinophils, cytokines, and inflammatory mediators.
6.
7.
Asthma pharmacology — bronchodilators, inhaled corticosteroids,
leukotriene modifiers, combination therapy, mechanisms, and adverse effects.
8.
9.
Type 2 diabetes pathophysiology — insulin resistance, β-cell dysfunction,
hyperglycaemia, and metabolic dysregulation.
10.
11.
Glucose homeostasis — insulin, glucagon, hepatic glucose metabolism,
skeletal muscle glucose uptake, and feedback regulation.
12.
13.
Diabetes pharmacology — mechanisms and therapeutic roles of commonly
used glucose-lowering medications.
14.
15.
Complications of diabetes — vascular, renal, neurological, ocular, and
cardiovascular consequences of chronic hyperglycaemia.
16.
17.
Clinical reasoning — connecting signs, symptoms, mechanisms,
investigations, and treatment decisions.
18.
2
, 19.
Evidence-based communication — distinguishing correlation from causation
and interpreting scientific evidence.
20.
21.
Annotated bibliography skills — source credibility, relevance, currency,
methodological quality, synthesis, and citation.
22.
23.
Vodcast communication — organisation, scientific accuracy, audience
adaptation, visual explanation, and concise academic communication.
24.
QUESTIONS 1-100
Q1:
A patient with extrinsic asthma develops wheezing and chest tightness shortly after
exposure to a known environmental allergen. Which combination most directly
explains the rapid reduction in airway diameter?
A) Alveolar destruction and pulmonary capillary rupture
B) Bronchial smooth-muscle contraction, mucosal oedema, and increased mucus
secretion
C) Reduced pulmonary blood flow caused by left ventricular failure
D) Destruction of respiratory bronchioles caused by chronic infection
Rationale: The correct answer is B because acute allergic asthma can produce
bronchoconstriction, airway-wall oedema, and excessive mucus, together producing
marked airflow limitation. A is incorrect because alveolar destruction is
characteristic of emphysema rather than acute extrinsic asthma. C describes a
cardiovascular mechanism and does not explain the typical immediate asthmatic
response. D is incorrect because asthma does not primarily involve destructive loss of
respiratory bronchioles.
Q2:
A student states that asthma causes airflow obstruction solely because the bronchi
become physically blocked by mucus. Which response best corrects this interpretation?
A) Asthma is exclusively a disorder of pulmonary blood flow
B) Asthma causes permanent destruction of alveolar walls
3
, C) Airflow limitation results from interacting bronchoconstriction, airway
inflammation, oedema, and mucus hypersecretion
D) Asthma prevents oxygen from binding to haemoglobin
Rationale: The correct answer is C because asthma is multifactorial: smooth-muscle
contraction, inflammatory swelling, mucus, and airway hyperresponsiveness
collectively narrow the conducting airways. A is incorrect because pulmonary
perfusion is not the primary defect. B is incorrect because asthma generally causes
variable and reversible airway obstruction rather than primary alveolar destruction.
D is incorrect because haemoglobin binding is not the initiating defect.
Q3:
During an acute asthma episode, airway resistance rises substantially. Which change
most directly contributes to this increase?
A) Increased airway radius
B) Reduced mucus viscosity
C) Reduced airway radius caused by bronchoconstriction and airway-wall
swelling
D) Increased alveolar surface area
Rationale: The correct answer is C because airway resistance increases dramatically
as airway radius decreases. A would reduce resistance rather than increase it. B
would generally facilitate airflow rather than obstruct it. D is incorrect because
alveolar surface area does not directly determine resistance in the conducting
airways.
Q4:
A patient with allergic asthma asks why exposure to pollen can trigger symptoms
within minutes. Which mechanism provides the best explanation?
A) Pollen directly destroys alveolar epithelial cells
B) Pollen immediately increases red blood cell production
C) Previously sensitised immune pathways rapidly activate mast cells and release
bronchoconstrictive mediators
D) Pollen directly suppresses the diaphragm
Rationale: The correct answer is C because allergen exposure in a sensitised
individual can cross-link allergen-specific IgE on mast cells, producing rapid
mediator release and bronchoconstriction. A is not the typical mechanism. B has no
role in the acute response. D is incorrect because pollen does not directly inhibit
diaphragmatic contraction.
Q5:
Which immunological mechanism is most characteristic of classical extrinsic allergic
asthma?
4
