BIOL252 / BIOL 252 Module & Lab 1 – Human Anatomy & Physiology II with Lab
(Portage Learning) | Study Guide, Questions & Answers
This document is a comprehensive study resource for BIOL252 / BIOL 252: Human Anatomy
& Physiology II with Lab offered through Portage Learning. Module & Lab 1 focuses on the
composition and functions of blood, hemostasis, diagnostic blood testing, and foundational
cardiovascular physiology. The material includes practice questions, answer explanations, key
concepts, terminology reviews, and exam-preparation content designed to reinforce course
objectives and support student success. Human Anatomy & Physiology II covers major body
systems including the circulatory, lymphatic, respiratory, digestive, urinary, and reproductive
systems, with laboratory exercises and case-based applications.
Section 1: Chemical Foundations & Cellular Membrane Dynamics
Question 1:
Which structural component of the plasma membrane serves as a cell-identity marker,
allowing the immune system to recognize "self" versus "non-self" cells?
A) Integral channel proteins
B) Glycoproteins and glycolipids (The Glycocalyx)
C) Cholesterol molecules
D) Peripheral anchor filaments
Rationale: The glycocalyx forms a unique carbohydrate coating on the outer cell
surface. This acts as a molecular fingerprint for cellular recognition and immune system
targeting.
Question 2:
During secondary active transport, the movement of glucose into a cell against its
concentration gradient is powered directly by:
A) The immediate hydrolysis of an ATP molecule
,B) The downward electrochemical gradient of another ion, such as sodium
C) Kinetic energy from high-velocity thermal collisions
D) Direct pressure differentials across the nuclear membrane
Rationale: Secondary active transport uses energy indirectly. It relies on a gradient
established by primary active transport (like the sodium-potassium pump) to move a
second substance against its gradient.
Question 3:
A solution containing a lower concentration of non-permeating solutes than the
intracellular fluid is defined as:
A) Hypertonic
B) Isotonic
C) Hypotonic
D) Hydrophobic
Rationale: A hypotonic solution has a lower solute concentration than the cytoplasm.
This forces water to diffuse into the cell via osmosis, causing it to swell and potentially
lyse.
Question 4:
Which transmembrane protein structure forms an open fluid pathway through the
plasma membrane, allowing specific ions to diffuse continuously down their
concentration gradients?
A) Carrier protein pump
B) Ion channel protein
C) Enzymatic receptor
D) G-protein complex
Rationale: Ion channels are specialized transmembrane corridors that allow ions to
cross the hydrophobic core of the lipid bilayer passively via simple diffusion.
Question 5:
What specialized cellular modification found on the apical surface of epithelial cells
,lining the human uterine (fallopian) tubes functions to sweep an oocyte toward the
uterus?
A) Cilia
B) Microvilli
C) Stereocilia
D) Flagella
Rationale: Cilia are motile, hair-like membrane extensions containing a microtubule
core. They beat in coordinated waves to move substances across cell surfaces.
Section 2: Comprehensive Organelle Function & Protein
Synthesis
Question 6:
Which cellular organelle is responsible for chemically modifying, sorting, and packaging
newly synthesized proteins into vesicular transport carriers?
A) Peroxisome
B) Smooth Endoplasmic Reticulum
C) Golgi Apparatus
D) Nucleolus
Rationale: The Golgi apparatus serves as the cellular shipping hub. It receives proteins
from the rough endoplasmic reticulum, adds carbohydrate tags, and sorts them into
target vesicles.
Question 7:
What specific metabolic process occurs within the matrix of the mitochondria to yield
large quantities of ATP during aerobic respiration?
A) Glycolysis
B) Lactic acid fermentation
C) The Citric Acid (Krebs) Cycle and Electron Transport Chain
D) Gluconeogenesis
, Rationale: While glycolysis occurs anaerobically in the cytosol, oxygen-dependent
metabolic phases—the Krebs cycle and the electron transport chain—happen in the
mitochondria.
Question 8:
A cell that synthesizes large volumes of steroid hormones, such as testosterone or
estrogen, will display an abundance of which organelle?
A) Rough Endoplasmic Reticulum
B) Smooth Endoplasmic Reticulum
C) Lysosomes
D) Ribosomes
Rationale: The smooth endoplasmic reticulum lacks ribosomes and contains enzymes
specialized for lipid synthesis, cholesterol metabolism, and steroid hormone production.
Question 9:
What dense, non-membrane-bound structure situated inside the eukaryotic nucleus
serves as the assembly site for ribosomal subunits?
A) Chromatin
B) Nuclear envelope
C) Nucleolus
D) Nuclear pore complex
Rationale: The nucleolus is a specialized nuclear sub-region dedicated to synthesizing
ribosomal RNA (rRNA) and assembling ribosomal subunits.
Question 10:
Peroxisomes contain the specialized enzyme catalase, which functions specifically to
neutralize which toxic metabolic byproduct?
A) Carbon dioxide
B) Hydrogen peroxide
C) Lactic acid
D) Ammonia ions
(Portage Learning) | Study Guide, Questions & Answers
This document is a comprehensive study resource for BIOL252 / BIOL 252: Human Anatomy
& Physiology II with Lab offered through Portage Learning. Module & Lab 1 focuses on the
composition and functions of blood, hemostasis, diagnostic blood testing, and foundational
cardiovascular physiology. The material includes practice questions, answer explanations, key
concepts, terminology reviews, and exam-preparation content designed to reinforce course
objectives and support student success. Human Anatomy & Physiology II covers major body
systems including the circulatory, lymphatic, respiratory, digestive, urinary, and reproductive
systems, with laboratory exercises and case-based applications.
Section 1: Chemical Foundations & Cellular Membrane Dynamics
Question 1:
Which structural component of the plasma membrane serves as a cell-identity marker,
allowing the immune system to recognize "self" versus "non-self" cells?
A) Integral channel proteins
B) Glycoproteins and glycolipids (The Glycocalyx)
C) Cholesterol molecules
D) Peripheral anchor filaments
Rationale: The glycocalyx forms a unique carbohydrate coating on the outer cell
surface. This acts as a molecular fingerprint for cellular recognition and immune system
targeting.
Question 2:
During secondary active transport, the movement of glucose into a cell against its
concentration gradient is powered directly by:
A) The immediate hydrolysis of an ATP molecule
,B) The downward electrochemical gradient of another ion, such as sodium
C) Kinetic energy from high-velocity thermal collisions
D) Direct pressure differentials across the nuclear membrane
Rationale: Secondary active transport uses energy indirectly. It relies on a gradient
established by primary active transport (like the sodium-potassium pump) to move a
second substance against its gradient.
Question 3:
A solution containing a lower concentration of non-permeating solutes than the
intracellular fluid is defined as:
A) Hypertonic
B) Isotonic
C) Hypotonic
D) Hydrophobic
Rationale: A hypotonic solution has a lower solute concentration than the cytoplasm.
This forces water to diffuse into the cell via osmosis, causing it to swell and potentially
lyse.
Question 4:
Which transmembrane protein structure forms an open fluid pathway through the
plasma membrane, allowing specific ions to diffuse continuously down their
concentration gradients?
A) Carrier protein pump
B) Ion channel protein
C) Enzymatic receptor
D) G-protein complex
Rationale: Ion channels are specialized transmembrane corridors that allow ions to
cross the hydrophobic core of the lipid bilayer passively via simple diffusion.
Question 5:
What specialized cellular modification found on the apical surface of epithelial cells
,lining the human uterine (fallopian) tubes functions to sweep an oocyte toward the
uterus?
A) Cilia
B) Microvilli
C) Stereocilia
D) Flagella
Rationale: Cilia are motile, hair-like membrane extensions containing a microtubule
core. They beat in coordinated waves to move substances across cell surfaces.
Section 2: Comprehensive Organelle Function & Protein
Synthesis
Question 6:
Which cellular organelle is responsible for chemically modifying, sorting, and packaging
newly synthesized proteins into vesicular transport carriers?
A) Peroxisome
B) Smooth Endoplasmic Reticulum
C) Golgi Apparatus
D) Nucleolus
Rationale: The Golgi apparatus serves as the cellular shipping hub. It receives proteins
from the rough endoplasmic reticulum, adds carbohydrate tags, and sorts them into
target vesicles.
Question 7:
What specific metabolic process occurs within the matrix of the mitochondria to yield
large quantities of ATP during aerobic respiration?
A) Glycolysis
B) Lactic acid fermentation
C) The Citric Acid (Krebs) Cycle and Electron Transport Chain
D) Gluconeogenesis
, Rationale: While glycolysis occurs anaerobically in the cytosol, oxygen-dependent
metabolic phases—the Krebs cycle and the electron transport chain—happen in the
mitochondria.
Question 8:
A cell that synthesizes large volumes of steroid hormones, such as testosterone or
estrogen, will display an abundance of which organelle?
A) Rough Endoplasmic Reticulum
B) Smooth Endoplasmic Reticulum
C) Lysosomes
D) Ribosomes
Rationale: The smooth endoplasmic reticulum lacks ribosomes and contains enzymes
specialized for lipid synthesis, cholesterol metabolism, and steroid hormone production.
Question 9:
What dense, non-membrane-bound structure situated inside the eukaryotic nucleus
serves as the assembly site for ribosomal subunits?
A) Chromatin
B) Nuclear envelope
C) Nucleolus
D) Nuclear pore complex
Rationale: The nucleolus is a specialized nuclear sub-region dedicated to synthesizing
ribosomal RNA (rRNA) and assembling ribosomal subunits.
Question 10:
Peroxisomes contain the specialized enzyme catalase, which functions specifically to
neutralize which toxic metabolic byproduct?
A) Carbon dioxide
B) Hydrogen peroxide
C) Lactic acid
D) Ammonia ions
