INTRODUCTION TO HUMAN PHYSIOLOGY
EXAM WITH QUESTIONS AND ANSWERS
2025/2026
1. Which of the following is the best example of homeostasis?
a. You begin breathing more often when your blood carbon dioxide levels become
too high
b. You begin sweating in a cold room
c. Body temperature can fluctuate widely with the external environment
d. White blood cells recruit more white blood cells to an area to fight infection
e. Blood glucose levels remain higher than normal after ingestion of a meal in persons
with an insulin deficiency ANSWER-a. You begin breathing more often when your
blood carbon dioxide levels become too high
2. Which of the following is NOT a primary tissue?
a. Muscle
b. Fatty
c. Epithelial
d. Neuronal
e. Connective ANSWER-b. Fatty
3. The phospholipids that make up the _______ contain a polar head and two non-polar, lipid
tails. This results in a _______ head and a ______ tail.
a. Plasma membrane; hydrophilic; hydrophobic
b. Capillary membrane; hydrophilic; hydrophobic
c. Nuclear membrane; hydrophilic; hydrophobic
d. Plasma membrane; hydrophobic; hydrophilic
e. Capillary membrane; hydrophobic; hydrophilic ANSWER-a. Plasma membrane;
hydrophilic; hydrophobic
, 4. Which orders the hierarchy of living systems from least to most complex:
a. cells; organism; tissues; organs; body systems
b. organism; body systems; organs; tissues; cells
c. body systems; organs; tissues; cells; organism
d. cells; tissues; organs; body systems; organism
e. tissues; cells; organs; body systems; organism ANSWER-d. cells; tissues; organs;
body systems; organism
5. Which of the following statements is correct regarding net diffusion
a. The rate is independent of (i.e., not related to) temperature
b. The greater the concentration gradient, the faster the rate
c. Molecular weight of a substance does not affect the rate
d. The lower the temperature, the faster the rate
e. The lower the concentration gradient, the faster the rate ANSWER-b. The greater
the concentration gradient, the faster the rate
6. In tissue types that undergoes a great deal of mechanical stress, like the tissue that lines
the digestive tract, you would expect to see an abundance of ________ between the
individual cells of the tissue.
a. Gap junctions
b. Desmosomes
c. Carrier proteins
d. Connexons
e. Tight Junctions ANSWER-b. Desmosomes
7. Which of the following is FALSE regarding the membrane potential?
a. In their resting state, all body cells exhibit a resting membrane potential.
b. The resting membrane potential occurs due to active transport of ions across the
membrane due to the sodium-potassium pump.
c. The resting membrane potential is determined mainly by the concentration gradients
and differential permeability of the plasma membrane to K+ and Na+ ions.
EXAM WITH QUESTIONS AND ANSWERS
2025/2026
1. Which of the following is the best example of homeostasis?
a. You begin breathing more often when your blood carbon dioxide levels become
too high
b. You begin sweating in a cold room
c. Body temperature can fluctuate widely with the external environment
d. White blood cells recruit more white blood cells to an area to fight infection
e. Blood glucose levels remain higher than normal after ingestion of a meal in persons
with an insulin deficiency ANSWER-a. You begin breathing more often when your
blood carbon dioxide levels become too high
2. Which of the following is NOT a primary tissue?
a. Muscle
b. Fatty
c. Epithelial
d. Neuronal
e. Connective ANSWER-b. Fatty
3. The phospholipids that make up the _______ contain a polar head and two non-polar, lipid
tails. This results in a _______ head and a ______ tail.
a. Plasma membrane; hydrophilic; hydrophobic
b. Capillary membrane; hydrophilic; hydrophobic
c. Nuclear membrane; hydrophilic; hydrophobic
d. Plasma membrane; hydrophobic; hydrophilic
e. Capillary membrane; hydrophobic; hydrophilic ANSWER-a. Plasma membrane;
hydrophilic; hydrophobic
, 4. Which orders the hierarchy of living systems from least to most complex:
a. cells; organism; tissues; organs; body systems
b. organism; body systems; organs; tissues; cells
c. body systems; organs; tissues; cells; organism
d. cells; tissues; organs; body systems; organism
e. tissues; cells; organs; body systems; organism ANSWER-d. cells; tissues; organs;
body systems; organism
5. Which of the following statements is correct regarding net diffusion
a. The rate is independent of (i.e., not related to) temperature
b. The greater the concentration gradient, the faster the rate
c. Molecular weight of a substance does not affect the rate
d. The lower the temperature, the faster the rate
e. The lower the concentration gradient, the faster the rate ANSWER-b. The greater
the concentration gradient, the faster the rate
6. In tissue types that undergoes a great deal of mechanical stress, like the tissue that lines
the digestive tract, you would expect to see an abundance of ________ between the
individual cells of the tissue.
a. Gap junctions
b. Desmosomes
c. Carrier proteins
d. Connexons
e. Tight Junctions ANSWER-b. Desmosomes
7. Which of the following is FALSE regarding the membrane potential?
a. In their resting state, all body cells exhibit a resting membrane potential.
b. The resting membrane potential occurs due to active transport of ions across the
membrane due to the sodium-potassium pump.
c. The resting membrane potential is determined mainly by the concentration gradients
and differential permeability of the plasma membrane to K+ and Na+ ions.
