BMS 300 Exam 2 Practice Test 2026–2027 |
100 Questions & Answers with Detailed
Rationales | Complete Study Guide
Intro
Prepare for BMS 300 Exam 2 with 100 practice questions covering essential concepts in
anatomy and physiology, including cellular biology, tissues, homeostasis, integumentary system,
skeletal system, joints, muscles, and nervous system.
Coverage
Cell Structure & Function
Cellular Transport
Tissues & Histology
Homeostasis & Feedback Mechanisms
Anatomical Terminology
Body Cavities & Membranes
Integumentary System
Bone Structure & Physiology
Joints & Movement
Muscle Structure & Contraction
Nervous System
Neurons & Neurotransmitters
Central & Peripheral Nervous Systems
1.
Which level of organization represents the smallest structural and functional unit capable of
carrying out all activities necessary for life?
A. Tissue
B. Organ
C. Organ system
D. Cell ✅
,Rationale: The cell is the basic structural and functional unit of the human body and
performs the processes necessary for life.
2.
Which organelle is primarily responsible for producing ATP through aerobic cellular
respiration?
A. Ribosome
B. Lysosome
C. Mitochondrion ✅
D. Golgi apparatus
Rationale: Mitochondria generate most cellular ATP through oxidative phosphorylation and
other stages of aerobic metabolism.
3.
Which organelle contains genetic material and regulates most cellular activities?
A. Lysosome
B. Ribosome
C. Nucleus ✅
D. Centriole
Rationale: The nucleus contains most of the cell's DNA and regulates gene expression and
cellular activities.
4.
Which cellular structure is primarily responsible for synthesizing proteins?
, A. Mitochondrion
B. Ribosome ✅
C. Lysosome
D. Peroxisome
Rationale: Ribosomes translate messenger RNA into polypeptide chains during protein
synthesis.
5.
Which organelle modifies, sorts, and packages proteins for transport within or outside the
cell?
A. Nucleus
B. Smooth endoplasmic reticulum
C. Golgi apparatus ✅
D. Mitochondrion
Rationale: The Golgi apparatus modifies proteins and lipids and packages them into
vesicles for transport.
6.
Which organelle contains enzymes responsible for intracellular digestion and breakdown of
cellular debris?
A. Ribosome
B. Lysosome ✅
C. Nucleolus
D. Centriole
, Rationale: Lysosomes contain hydrolytic enzymes that digest damaged organelles,
macromolecules, and cellular debris.
7.
Which cellular structure regulates what substances enter and leave the cell?
A. Nucleus
B. Cytoplasm
C. Plasma membrane ✅
D. Nucleolus
Rationale: The selectively permeable plasma membrane controls movement of substances
between the intracellular and extracellular environments.
8.
Which type of membrane transport requires cellular energy in the form of ATP?
A. Simple diffusion
B. Osmosis
C. Facilitated diffusion
D. Active transport ✅
Rationale: Active transport moves substances against their concentration or electrochemical
gradients and requires cellular energy.
9.
A substance moves across a cell membrane from an area of higher concentration to an
area of lower concentration without requiring ATP. Which process is occurring?
100 Questions & Answers with Detailed
Rationales | Complete Study Guide
Intro
Prepare for BMS 300 Exam 2 with 100 practice questions covering essential concepts in
anatomy and physiology, including cellular biology, tissues, homeostasis, integumentary system,
skeletal system, joints, muscles, and nervous system.
Coverage
Cell Structure & Function
Cellular Transport
Tissues & Histology
Homeostasis & Feedback Mechanisms
Anatomical Terminology
Body Cavities & Membranes
Integumentary System
Bone Structure & Physiology
Joints & Movement
Muscle Structure & Contraction
Nervous System
Neurons & Neurotransmitters
Central & Peripheral Nervous Systems
1.
Which level of organization represents the smallest structural and functional unit capable of
carrying out all activities necessary for life?
A. Tissue
B. Organ
C. Organ system
D. Cell ✅
,Rationale: The cell is the basic structural and functional unit of the human body and
performs the processes necessary for life.
2.
Which organelle is primarily responsible for producing ATP through aerobic cellular
respiration?
A. Ribosome
B. Lysosome
C. Mitochondrion ✅
D. Golgi apparatus
Rationale: Mitochondria generate most cellular ATP through oxidative phosphorylation and
other stages of aerobic metabolism.
3.
Which organelle contains genetic material and regulates most cellular activities?
A. Lysosome
B. Ribosome
C. Nucleus ✅
D. Centriole
Rationale: The nucleus contains most of the cell's DNA and regulates gene expression and
cellular activities.
4.
Which cellular structure is primarily responsible for synthesizing proteins?
, A. Mitochondrion
B. Ribosome ✅
C. Lysosome
D. Peroxisome
Rationale: Ribosomes translate messenger RNA into polypeptide chains during protein
synthesis.
5.
Which organelle modifies, sorts, and packages proteins for transport within or outside the
cell?
A. Nucleus
B. Smooth endoplasmic reticulum
C. Golgi apparatus ✅
D. Mitochondrion
Rationale: The Golgi apparatus modifies proteins and lipids and packages them into
vesicles for transport.
6.
Which organelle contains enzymes responsible for intracellular digestion and breakdown of
cellular debris?
A. Ribosome
B. Lysosome ✅
C. Nucleolus
D. Centriole
, Rationale: Lysosomes contain hydrolytic enzymes that digest damaged organelles,
macromolecules, and cellular debris.
7.
Which cellular structure regulates what substances enter and leave the cell?
A. Nucleus
B. Cytoplasm
C. Plasma membrane ✅
D. Nucleolus
Rationale: The selectively permeable plasma membrane controls movement of substances
between the intracellular and extracellular environments.
8.
Which type of membrane transport requires cellular energy in the form of ATP?
A. Simple diffusion
B. Osmosis
C. Facilitated diffusion
D. Active transport ✅
Rationale: Active transport moves substances against their concentration or electrochemical
gradients and requires cellular energy.
9.
A substance moves across a cell membrane from an area of higher concentration to an
area of lower concentration without requiring ATP. Which process is occurring?
