NSG 3280 EXAM 1 QUESTIONS AND ANSWERS PRACTICE QUESTIONS WITH SOLUTIONS NEWEST | ALREADY GRADED A+/NEWEST UPDATE

NSG 3280 EXAM 1 QUESTIONS AND ANSWERS PRACTICE QUESTIONS WITH SOLUTIONS
NEWEST | ALREADY GRADED A+/NEWEST UPDATE

Question 1
Which organelle is considered the cell's control center because it contains the genetic blueprints?
A) Mitochondrion
B) Golgi complex
C) Nucleus
D) Ribosome
E) Lysosome
Correct Answer: C) Nucleus
Rationale: The nucleus is known as the control center of the cell. It houses the cell's DNA,
which contains the coded information necessary for regulating cellular activities and
passing on inherited characteristics.

Question 2
Which organelle is responsible for producing energy (ATP) through oxidative metabolism?
A) Nucleus
B) Mitochondrion
C) Vacuole
D) Peroxisome
E) Endoplasmic reticulum
Correct Answer: B) Mitochondrion
Rationale: Mitochondria are the "powerhouses" of the cell. They break down nutrients
during oxidative metabolism to produce adenosine triphosphate (ATP), which the cell uses
for energy.

Question 3
What is the primary function of the Golgi complex within the cell?
A) Digestion of nutrients
B) Protein synthesis
C) Collection, packaging, and distribution of molecules
D) Detoxification of harmful molecules
E) Cell division
Correct Answer: C) Collection, packaging, and distribution of molecules
Rationale: The Golgi complex acts like a shipping department. It collects molecules made in
the cell, modifies them, packages them into vesicles, and distributes them to their
destination.

Question 4
Which cellular structure is described as a "protein-producing factory"?
A) Lysosome
B) Vacuole
C) Ribosome

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D) Centriole
E) Peroxisome
Correct Answer: C) Ribosome
Rationale: Ribosomes are small organelles where protein synthesis occurs. Proteins are
essential as they produce the chemical messages and structural components that run the
cell.

Question 5
What is the function of the vacuole in a human cell?
A) Producing chemical energy
B) Acting as a storage area for fats and other substances
C) Generating DNA
D) Moving materials through tubes
E) Regulating the passage of food
Correct Answer: B) Acting as a storage area for fats and other substances
Rationale: Vacuoles serve as storage sacs within the cell. They can hold various substances,
including nutrients, water, or waste products, such as fats.

Question 6
Which organelle contains enzymes that carry out detoxification reactions for potentially harmful
molecules?
A) Nucleus
B) Peroxisome
C) Lysosome
D) Ribosome
E) Centriole
Correct Answer: B) Peroxisome
Rationale: Peroxisomes are specialized vesicles containing oxidative enzymes. Their primary
role is to carry out metabolic reactions, such as the detoxification of alcohol or other
harmful chemicals.

Question 7
During the process of cell division, which organelles play a vital role in organizing the
movement of chromosomes?
A) Mitochondria
B) Ribosomes
C) Centrioles
D) Vacuoles
E) Golgi complexes
Correct Answer: C) Centrioles

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Rationale: Centrioles are cylindrical structures that help organize the microtubule assembly
during cell division (mitosis and meiosis), ensuring chromosomes are distributed correctly.

Question 8
Which component of the cell is a jelly-like fluid where all other organelles are suspended?
A) DNA
B) Cell membrane
C) Cytoplasm
D) Endoplasmic reticulum
E) Nucleus
Correct Answer: C) Cytoplasm
Rationale: The cytoplasm is the semi-fluid substance found between the cell membrane and
the nucleus. It provides the physical environment for the organelles and many biochemical
reactions.

Question 9
Where does the intracellular digestion of cell nutrients and the breakdown of waste typically take
place?
A) Endoplasmic reticulum
B) Nucleus
C) Lysosome
D) Ribosome
E) Golgi complex
Correct Answer: C) Lysosome
Rationale: Lysosomes contain digestive enzymes. They function as the cell's "stomach" or
recycling center, breaking down large molecules, old organelles, and foreign substances.

Question 10
Which structure is made up of a double layer of fatty material and regulates the movement of
materials in and out of the cell?
A) Cell wall
B) Cell membrane
C) Cytoplasm
D) Endoplasmic reticulum
E) Peroxisome
Correct Answer: B) Cell membrane
Rationale: The cell membrane (plasma membrane) is a phospholipid bilayer. It is semi-
permeable, meaning it allows specific materials like food and oxygen to enter while
allowing waste to exit across thousands of points on its surface.

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Question 11
The smooth and rough tubes that function to move and store materials made by the cell are
known as the:
A) Golgi apparatus
B) Mitochondria
C) Endoplasmic reticulum
D) Cytoplasm
E) Centrioles
Correct Answer: C) Endoplasmic reticulum
Rationale: The endoplasmic reticulum (ER) is an interconnected network of flattened sacs
or tubules. The rough ER is involved in protein transport, while the smooth ER is involved
in lipid synthesis and storage.
Question 12
Which molecule contains the coded information that passes on every single inherited
characteristic?
A) ATP
B) RNA
C) DNA
D) Protein
E) Glucose
Correct Answer: C) DNA
Rationale: Deoxyribonucleic acid (DNA) is the hereditary material in humans and almost all
other organisms. It stores the genetic information required for growth, development, and
reproduction.

Question 13
Which term refers to the study of the "classic" or common presentation of disease in the
physiologic functioning of human beings?
A) Etiology
B) Pathogenesis
C) Pathophysiology
D) Epidemiology
E) Gerontology
Correct Answer: C) Pathophysiology
Rationale: Pathophysiology is the study of the disordered physiological processes associated
with disease or injury. It explains how body systems fail or change during a disease state.

Question 14
In pathophysiology, what does the term "Etiology" describe?
A) The study of where the disease is located