SOUTHERN CONNECTICUT STATE UNIVERSITY BIOLOGY 101 EXAM REVIEW – EXAM
PRACTICE QUESTIONS AND CORRECT ANSWERS (VERIFIED ANSWERS) PLUS
RATIONALES 2026 Q&A | INSTANT DOWNLOAD PDF
CORE DOMAINS
Cell Biology
Molecular Biology
Genetics and Heredity
Evolution and Natural Selection
Ecology and Ecosystems
Cellular Respiration and Metabolism
Microbiology and Viruses
Human Physiology and Homeostasis
Scientific Method and Experimental Design
INTRODUCTION
This exam review is designed to assess foundational and applied knowledge in
,introductory biology. It evaluates understanding of core biological principles including cell
structure, genetic inheritance, evolutionary mechanisms, ecological relationships, and
biochemical processes. Students will encounter multiple-choice and scenario-based
questions that require analytical thinking, data interpretation, and application of scientific
concepts. The exam emphasizes real-world biological applications, laboratory reasoning,
and conceptual mastery essential for success in higher-level biology courses and health-
related academic programs.
*
SECTION ONE: QUESTIONS 1–50
Question 1
What is the basic unit of life?
A. Atom
B. Cell
C. Tissue
D. Organ
🟢 Correct Answer: B. Cell
🔴 Explanation: The cell is the smallest structural and functional unit of all living
,organisms.
Question 2
Which organelle is responsible for ATP production?
A. Nucleus
B. Ribosome
C. Mitochondrion
D. Golgi apparatus
🟢 Correct Answer: C. Mitochondrion
🔴 Explanation: Mitochondria generate ATP through cellular respiration.
Question 3
DNA is primarily located in which structure in eukaryotic cells?
A. Cytoplasm
B. Ribosome
C. Nucleus
D. Lysosome
, 🟢 Correct Answer: C. Nucleus
🔴 Explanation: The nucleus contains most of the cell’s genetic material.
Question 4
Which process describes the movement of water across a membrane?
A. Diffusion
B. Osmosis
C. Active transport
D. Endocytosis
🟢 Correct Answer: B. Osmosis
🔴 Explanation: Osmosis is the passive movement of water through a semipermeable
membrane.
Question 5
What is the primary function of ribosomes?
A. Lipid synthesis
B. Protein synthesis
PRACTICE QUESTIONS AND CORRECT ANSWERS (VERIFIED ANSWERS) PLUS
RATIONALES 2026 Q&A | INSTANT DOWNLOAD PDF
CORE DOMAINS
Cell Biology
Molecular Biology
Genetics and Heredity
Evolution and Natural Selection
Ecology and Ecosystems
Cellular Respiration and Metabolism
Microbiology and Viruses
Human Physiology and Homeostasis
Scientific Method and Experimental Design
INTRODUCTION
This exam review is designed to assess foundational and applied knowledge in
,introductory biology. It evaluates understanding of core biological principles including cell
structure, genetic inheritance, evolutionary mechanisms, ecological relationships, and
biochemical processes. Students will encounter multiple-choice and scenario-based
questions that require analytical thinking, data interpretation, and application of scientific
concepts. The exam emphasizes real-world biological applications, laboratory reasoning,
and conceptual mastery essential for success in higher-level biology courses and health-
related academic programs.
*
SECTION ONE: QUESTIONS 1–50
Question 1
What is the basic unit of life?
A. Atom
B. Cell
C. Tissue
D. Organ
🟢 Correct Answer: B. Cell
🔴 Explanation: The cell is the smallest structural and functional unit of all living
,organisms.
Question 2
Which organelle is responsible for ATP production?
A. Nucleus
B. Ribosome
C. Mitochondrion
D. Golgi apparatus
🟢 Correct Answer: C. Mitochondrion
🔴 Explanation: Mitochondria generate ATP through cellular respiration.
Question 3
DNA is primarily located in which structure in eukaryotic cells?
A. Cytoplasm
B. Ribosome
C. Nucleus
D. Lysosome
, 🟢 Correct Answer: C. Nucleus
🔴 Explanation: The nucleus contains most of the cell’s genetic material.
Question 4
Which process describes the movement of water across a membrane?
A. Diffusion
B. Osmosis
C. Active transport
D. Endocytosis
🟢 Correct Answer: B. Osmosis
🔴 Explanation: Osmosis is the passive movement of water through a semipermeable
membrane.
Question 5
What is the primary function of ribosomes?
A. Lipid synthesis
B. Protein synthesis
