N212 PATHOPHYSIOLOGY EXAM
1 STUDY GUIDE 2026| Eastwick
College | 100% Correct
Certification
Cellular Biology & Injury
Q1: What do cells need in order to survive?
• A) Glucose and Insulin
• B) Water + Oxygen
• C) Nitrogen and Carbon
• D) Sodium and Potassium
Correct ,,,ANSWER,,,: B) Water + Oxygen
Rationale: Cells require oxygen for aerobic metabolism (ATP production) and water
as a solvent for biochemical reactions and transport.
Q2: Where is ATP (energy) produced within the cell?
• A) Nucleus
, • B) Ribosome
• C) Mitochondria
• D) Golgi Apparatus
Correct ,,,ANSWER,,,: C) Mitochondria
Rationale: The mitochondria are known as the "powerhouse of the cell" because
they generate ATP through oxidative phosphorylation.
Q3: What is the primary function of the ribosome?
• A) Lipid synthesis
• B) ATP production
• C) Protein synthesis
• D) Waste digestion
Correct ,,,ANSWER,,,: C) Protein synthesis
Rationale: Ribosomes decode messenger RNA (mRNA) to assemble amino acids
into polypeptide chains, making them essential for cell growth and survival.
Q4: A patient has a genetic disorder affecting the organelles responsible for
detoxification and steroid synthesis. Which organelle is most likely involved?
• A) Rough Endoplasmic Reticulum
• B) Smooth Endoplasmic Reticulum
• C) Lysosome
• D) Peroxisome
,Correct ,,,ANSWER,,,: B) Smooth Endoplasmic Reticulum
Rationale: The Smooth ER is specifically responsible for lipid (steroid) synthesis and
detoxification of drugs and poisons.
Q5: Which cellular junction allows for intercellular communication and
conductivity (e.g., in heart muscle)?
• A) Tight junctions
• B) Desmosomes
• C) Gap junctions
• D) Adherens junctions
Correct ,,,ANSWER,,,: C) Gap junctions
Rationale: Gap junctions create channels between adjacent cells that allow ions
and small molecules to pass, synchronizing electrical activity like heart
contractions.
Q6: Which of the following is a cause of cellular injury?
• A) Adequate perfusion
• B) Hypoxia
• C) Homeostasis
• D) Parasympathetic stimulation
Correct ,,,ANSWER,,,: B) Hypoxia
, Rationale: Hypoxia (lack of oxygen) is a major cause of cellular injury, often resulting
from ischemia, which halts aerobic metabolism.
Q7: What is the main ion found in Extracellular Fluid (ECF)?
• A) Potassium
• B) Magnesium
• C) Phosphate
• D) Sodium
Correct ,,,ANSWER,,,: D) Sodium
Rationale: Sodium (Na+) is the dominant cation in the extracellular fluid,
responsible for maintaining osmotic balance and nerve impulse transmission.
Genetics & Cancer
Q8: What is an "anaplastic" tumor?
• A) Benign and slow-growing
• B) Cancerous with undifferentiated cells
• C) A tumor found only in children
• D) A viral infection of cells
Correct ,,,ANSWER,,,: B) Cancerous with undifferentiated cells
Rationale: Anaplasia refers to a lack of differentiation in cancer cells. These cells do
not resemble normal mature cells and usually indicate rapid growth and malignancy.
1 STUDY GUIDE 2026| Eastwick
College | 100% Correct
Certification
Cellular Biology & Injury
Q1: What do cells need in order to survive?
• A) Glucose and Insulin
• B) Water + Oxygen
• C) Nitrogen and Carbon
• D) Sodium and Potassium
Correct ,,,ANSWER,,,: B) Water + Oxygen
Rationale: Cells require oxygen for aerobic metabolism (ATP production) and water
as a solvent for biochemical reactions and transport.
Q2: Where is ATP (energy) produced within the cell?
• A) Nucleus
, • B) Ribosome
• C) Mitochondria
• D) Golgi Apparatus
Correct ,,,ANSWER,,,: C) Mitochondria
Rationale: The mitochondria are known as the "powerhouse of the cell" because
they generate ATP through oxidative phosphorylation.
Q3: What is the primary function of the ribosome?
• A) Lipid synthesis
• B) ATP production
• C) Protein synthesis
• D) Waste digestion
Correct ,,,ANSWER,,,: C) Protein synthesis
Rationale: Ribosomes decode messenger RNA (mRNA) to assemble amino acids
into polypeptide chains, making them essential for cell growth and survival.
Q4: A patient has a genetic disorder affecting the organelles responsible for
detoxification and steroid synthesis. Which organelle is most likely involved?
• A) Rough Endoplasmic Reticulum
• B) Smooth Endoplasmic Reticulum
• C) Lysosome
• D) Peroxisome
,Correct ,,,ANSWER,,,: B) Smooth Endoplasmic Reticulum
Rationale: The Smooth ER is specifically responsible for lipid (steroid) synthesis and
detoxification of drugs and poisons.
Q5: Which cellular junction allows for intercellular communication and
conductivity (e.g., in heart muscle)?
• A) Tight junctions
• B) Desmosomes
• C) Gap junctions
• D) Adherens junctions
Correct ,,,ANSWER,,,: C) Gap junctions
Rationale: Gap junctions create channels between adjacent cells that allow ions
and small molecules to pass, synchronizing electrical activity like heart
contractions.
Q6: Which of the following is a cause of cellular injury?
• A) Adequate perfusion
• B) Hypoxia
• C) Homeostasis
• D) Parasympathetic stimulation
Correct ,,,ANSWER,,,: B) Hypoxia
, Rationale: Hypoxia (lack of oxygen) is a major cause of cellular injury, often resulting
from ischemia, which halts aerobic metabolism.
Q7: What is the main ion found in Extracellular Fluid (ECF)?
• A) Potassium
• B) Magnesium
• C) Phosphate
• D) Sodium
Correct ,,,ANSWER,,,: D) Sodium
Rationale: Sodium (Na+) is the dominant cation in the extracellular fluid,
responsible for maintaining osmotic balance and nerve impulse transmission.
Genetics & Cancer
Q8: What is an "anaplastic" tumor?
• A) Benign and slow-growing
• B) Cancerous with undifferentiated cells
• C) A tumor found only in children
• D) A viral infection of cells
Correct ,,,ANSWER,,,: B) Cancerous with undifferentiated cells
Rationale: Anaplasia refers to a lack of differentiation in cancer cells. These cells do
not resemble normal mature cells and usually indicate rapid growth and malignancy.
