BIOL 251 Final Exam Practice
Questions & Answers (2026/2027) |
Full Revision Pack | Accurate
Responses | A+
#### Part I: Multiple Choice Questions
**1. Which of the following BEST describes the anatomical position?**
A. Body lying face down with arms at the sides.
B. Body standing erect, feet parallel, and palms facing forward.
C. Body sitting upright with legs extended forward.
D. Body facing sideways with arms crossed.
**Correct Answer: B**
**Rationale:** The standard anatomical position is a reference point used to describe the location and
relation of body parts. It requires the body to be standing upright, feet together, with the palms of the
hands facing forward.
, ---
**2. The smallest structural and functional unit of life is the:**
A. Tissue
B. Organ
C. Cell
D. Molecule
**Correct Answer: C**
**Rationale:** The cell is the basic, smallest unit of life. All living organisms are composed of one or
more cells, which perform all necessary life processes.
---
**3. Which organelle is primarily responsible for energy production (ATP) in the cell?**
A. Golgi apparatus
B. Nucleus
C. Mitochondria
D. Lysosome
**Correct Answer: C**
**Rationale:** Mitochondria are the "powerhouses" of the cell. They are the site of aerobic cellular
respiration, where glucose and oxygen are converted into ATP, the main energy currency for cellular
activities.
---
Questions & Answers (2026/2027) |
Full Revision Pack | Accurate
Responses | A+
#### Part I: Multiple Choice Questions
**1. Which of the following BEST describes the anatomical position?**
A. Body lying face down with arms at the sides.
B. Body standing erect, feet parallel, and palms facing forward.
C. Body sitting upright with legs extended forward.
D. Body facing sideways with arms crossed.
**Correct Answer: B**
**Rationale:** The standard anatomical position is a reference point used to describe the location and
relation of body parts. It requires the body to be standing upright, feet together, with the palms of the
hands facing forward.
, ---
**2. The smallest structural and functional unit of life is the:**
A. Tissue
B. Organ
C. Cell
D. Molecule
**Correct Answer: C**
**Rationale:** The cell is the basic, smallest unit of life. All living organisms are composed of one or
more cells, which perform all necessary life processes.
---
**3. Which organelle is primarily responsible for energy production (ATP) in the cell?**
A. Golgi apparatus
B. Nucleus
C. Mitochondria
D. Lysosome
**Correct Answer: C**
**Rationale:** Mitochondria are the "powerhouses" of the cell. They are the site of aerobic cellular
respiration, where glucose and oxygen are converted into ATP, the main energy currency for cellular
activities.
---
