EXAM 3 STUDY GUIDE: BIOL 102
ESSENTIAL BIOLOGY II W/LAB, 2025/2026
WITH CORRECT/ACCURATE ANSWERS
PORTAGE LEARNING
Focus on animal anatomy and physiology, including homeostasis, major
organ systems, and potentially basic plant function
Key Areas for Exam 3
Homeostasis
The Circulatory System
The Immune System
The Nervous System
The Endocrine System
Musculoskeletal System
ESSENTIAL BIOLOGY II W/LAB
Which of the following plays the most significant role in regulating and
distributing blood into tissues? - CORRECT-ANSWERS--arterioles
All of the following are features of capillaries that promote exchange
between blood interstitial fluid EXCEPT which one - CORRECT-ANSWERS--
Capillaries have tiny valves that keep blood flowing one direction
Which of the following is a CORRECT statement? - CORRECT-ANSWERS--
Veins are more distensible than arteries
Life-threatening aneurisms are most likely to occur in - CORRECT-
ANSWERS--arteries
, Which of the following is TRUE regarding the lymphatic system? -
CORRECT-ANSWERS--The lymphatic system removes microorganisms
from body fluid
Fluid in the lymphatic system, as well as interstitial fluid, is - CORRECT-
ANSWERS--derived from blood plasma >>>
Both fluids are very similar in composition and are primarily composed of:
Water
Dissolved Solutes/Electrolytes (such as sodium, chloride, calcium, potassium)
Nutrients (glucose, amino acids, fatty acids)
Waste Products of cellular metabolism
Proteins (though in much lower concentration than blood plasma)
The primary difference between interstitial fluid and lymph is their location: interstitial fluid is
found in the spaces between the cells in the tissues, while lymph is that same fluid once it has
entered the lymphatic vessels.
As lymph flows through the lymphatic system, particularly through the lymph nodes, its
composition changes slightly as it accumulates white blood cells (lymphocytes) and filters out
cellular debris, bacteria, and other foreign materials. In the digestive system, a specialized lymph
called chyle has a milky appearance due to a high concentration of absorbed fats.
The left ventricle has a more muscular wall than the other three chambers
of the heart because the left ventricle - CORRECT-ANSWERS--must
generate enough blood pressure to pump blood into the aorta and
throughout the body
The atrioventricular valves are closed when the - CORRECT-ANSWERS--
ventricles contract
The aortic semilunar valve opens when the - CORRECT-ANSWERS--arterial
pressure is lower than the ventricular pressure
ESSENTIAL BIOLOGY II W/LAB, 2025/2026
WITH CORRECT/ACCURATE ANSWERS
PORTAGE LEARNING
Focus on animal anatomy and physiology, including homeostasis, major
organ systems, and potentially basic plant function
Key Areas for Exam 3
Homeostasis
The Circulatory System
The Immune System
The Nervous System
The Endocrine System
Musculoskeletal System
ESSENTIAL BIOLOGY II W/LAB
Which of the following plays the most significant role in regulating and
distributing blood into tissues? - CORRECT-ANSWERS--arterioles
All of the following are features of capillaries that promote exchange
between blood interstitial fluid EXCEPT which one - CORRECT-ANSWERS--
Capillaries have tiny valves that keep blood flowing one direction
Which of the following is a CORRECT statement? - CORRECT-ANSWERS--
Veins are more distensible than arteries
Life-threatening aneurisms are most likely to occur in - CORRECT-
ANSWERS--arteries
, Which of the following is TRUE regarding the lymphatic system? -
CORRECT-ANSWERS--The lymphatic system removes microorganisms
from body fluid
Fluid in the lymphatic system, as well as interstitial fluid, is - CORRECT-
ANSWERS--derived from blood plasma >>>
Both fluids are very similar in composition and are primarily composed of:
Water
Dissolved Solutes/Electrolytes (such as sodium, chloride, calcium, potassium)
Nutrients (glucose, amino acids, fatty acids)
Waste Products of cellular metabolism
Proteins (though in much lower concentration than blood plasma)
The primary difference between interstitial fluid and lymph is their location: interstitial fluid is
found in the spaces between the cells in the tissues, while lymph is that same fluid once it has
entered the lymphatic vessels.
As lymph flows through the lymphatic system, particularly through the lymph nodes, its
composition changes slightly as it accumulates white blood cells (lymphocytes) and filters out
cellular debris, bacteria, and other foreign materials. In the digestive system, a specialized lymph
called chyle has a milky appearance due to a high concentration of absorbed fats.
The left ventricle has a more muscular wall than the other three chambers
of the heart because the left ventricle - CORRECT-ANSWERS--must
generate enough blood pressure to pump blood into the aorta and
throughout the body
The atrioventricular valves are closed when the - CORRECT-ANSWERS--
ventricles contract
The aortic semilunar valve opens when the - CORRECT-ANSWERS--arterial
pressure is lower than the ventricular pressure
