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BIOS 255 - EXAM 1 LATEST 2026/2027 | CELL BIOLOGY &
TISSUES | 40 VERIFIED Q&A | DETAILED RATIONALES |
NGN-ALIGNED | PASS GUARANTEED – A+ GRADED
SECTION 1: CELL BIOLOGY - Questions 1-20
Q1: Cell Theory - Components
The nursing student is reviewing cell theory for BIOS 255. Which of the following is a component of
cell theory?
A. All living things are composed of cells
B. Cells are the basic units of life
C. All cells arise from pre-existing cells
D. All of the above
Correct Answer: D
Rationale: Cell theory states that all living things are composed of cells, cells are the basic units of
life, and all cells arise from pre-existing cells. All options are correct. [100% CORRECT]
Q2: Cell Membrane - Function
The nursing student is reviewing the cell membrane. Which of the following describes the cell
membrane?
A. A selectively permeable barrier
B. A rigid structure that provides support
C. A structure that contains genetic material
D. A structure that produces energy
Correct Answer: A
Rationale: The cell membrane is a selectively permeable barrier. Option B describes the cell wall.
Option C describes the nucleus. Option D describes mitochondria. [100% CORRECT]
Q3: Nucleus - Function
The nursing student is reviewing cell organelles. Which of the following is the function of the
nucleus?
A. Contains genetic material (DNA)
B. Produces energy
C. Synthesizes proteins
D. Modifies proteins
Correct Answer: A
Rationale: The nucleus contains genetic material (DNA). Option B is mitochondria. Option C is
ribosomes. Option D is the Golgi apparatus. [100% CORRECT]
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Q4: Mitochondria - Function
The nursing student is reviewing cell organelles. Which of the following is the function of
mitochondria?
A. Contains genetic material
B. Produces energy (ATP)
C. Synthesizes proteins
D. Modifies proteins
Correct Answer: B
Rationale: Mitochondria produce energy (ATP). Option A is the nucleus. Option C is ribosomes.
Option D is the Golgi apparatus. [100% CORRECT]
Q5: Ribosomes - Function
The nursing student is reviewing cell organelles. Which of the following is the function of ribosomes?
A. Contains genetic material
B. Produces energy
C. Synthesizes proteins
D. Modifies proteins
Correct Answer: C
Rationale: Ribosomes synthesize proteins. Option A is the nucleus. Option B is mitochondria. Option
D is the Golgi apparatus. [100% CORRECT]
Q6: Golgi Apparatus - Function
The nursing student is reviewing cell organelles. Which of the following is the function of the Golgi
apparatus?
A. Contains genetic material
B. Produces energy
C. Synthesizes proteins
D. Modifies, sorts, and packages proteins
Correct Answer: D
Rationale: The Golgi apparatus modifies, sorts, and packages proteins. Option A is the nucleus.
Option B is mitochondria. Option C is ribosomes. [100% CORRECT]
Q7: Endoplasmic Reticulum - Rough ER
The nursing student is reviewing cell organelles. Which of the following is the function of the rough
endoplasmic reticulum?
A. Synthesizes lipids
B. Synthesizes proteins (with ribosomes)
C. Produces energy
D. Contains genetic material
Correct Answer: B
Rationale: Rough ER synthesizes proteins due to the presence of ribosomes. Option A is smooth ER.
Option C is mitochondria. Option D is the nucleus. [100% CORRECT]
BIOS 255 - EXAM 1 LATEST 2026/2027 | CELL BIOLOGY &
TISSUES | 40 VERIFIED Q&A | DETAILED RATIONALES |
NGN-ALIGNED | PASS GUARANTEED – A+ GRADED
SECTION 1: CELL BIOLOGY - Questions 1-20
Q1: Cell Theory - Components
The nursing student is reviewing cell theory for BIOS 255. Which of the following is a component of
cell theory?
A. All living things are composed of cells
B. Cells are the basic units of life
C. All cells arise from pre-existing cells
D. All of the above
Correct Answer: D
Rationale: Cell theory states that all living things are composed of cells, cells are the basic units of
life, and all cells arise from pre-existing cells. All options are correct. [100% CORRECT]
Q2: Cell Membrane - Function
The nursing student is reviewing the cell membrane. Which of the following describes the cell
membrane?
A. A selectively permeable barrier
B. A rigid structure that provides support
C. A structure that contains genetic material
D. A structure that produces energy
Correct Answer: A
Rationale: The cell membrane is a selectively permeable barrier. Option B describes the cell wall.
Option C describes the nucleus. Option D describes mitochondria. [100% CORRECT]
Q3: Nucleus - Function
The nursing student is reviewing cell organelles. Which of the following is the function of the
nucleus?
A. Contains genetic material (DNA)
B. Produces energy
C. Synthesizes proteins
D. Modifies proteins
Correct Answer: A
Rationale: The nucleus contains genetic material (DNA). Option B is mitochondria. Option C is
ribosomes. Option D is the Golgi apparatus. [100% CORRECT]
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Q4: Mitochondria - Function
The nursing student is reviewing cell organelles. Which of the following is the function of
mitochondria?
A. Contains genetic material
B. Produces energy (ATP)
C. Synthesizes proteins
D. Modifies proteins
Correct Answer: B
Rationale: Mitochondria produce energy (ATP). Option A is the nucleus. Option C is ribosomes.
Option D is the Golgi apparatus. [100% CORRECT]
Q5: Ribosomes - Function
The nursing student is reviewing cell organelles. Which of the following is the function of ribosomes?
A. Contains genetic material
B. Produces energy
C. Synthesizes proteins
D. Modifies proteins
Correct Answer: C
Rationale: Ribosomes synthesize proteins. Option A is the nucleus. Option B is mitochondria. Option
D is the Golgi apparatus. [100% CORRECT]
Q6: Golgi Apparatus - Function
The nursing student is reviewing cell organelles. Which of the following is the function of the Golgi
apparatus?
A. Contains genetic material
B. Produces energy
C. Synthesizes proteins
D. Modifies, sorts, and packages proteins
Correct Answer: D
Rationale: The Golgi apparatus modifies, sorts, and packages proteins. Option A is the nucleus.
Option B is mitochondria. Option C is ribosomes. [100% CORRECT]
Q7: Endoplasmic Reticulum - Rough ER
The nursing student is reviewing cell organelles. Which of the following is the function of the rough
endoplasmic reticulum?
A. Synthesizes lipids
B. Synthesizes proteins (with ribosomes)
C. Produces energy
D. Contains genetic material
Correct Answer: B
Rationale: Rough ER synthesizes proteins due to the presence of ribosomes. Option A is smooth ER.
Option C is mitochondria. Option D is the nucleus. [100% CORRECT]
