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BIOL 320 Exam 2 Study Guide 2025 – Detailed
Review, Practice Questions & Answer Key for
Cellular and Molecular Biology
Ace your BIOL 320 Exam 2 with this complete study guide and test review for 2025. Includes
exam-style practice questions, detailed solutions, and key concepts in cellular processes,
molecular biology, genetics, and physiology. Ideal for university students preparing for
midterm or second-unit biology exams. Strengthen your understanding and boost your score
with expert-reviewed materials.
BIOL 320 Exam 2,
BIOL 320 study guide,
BIOL 320 exam 2 answers,
BIOL 320 practice exam 2,
What are the types of arteries and veins, from aorta to vena cava? - ANSWER-elastic arteries, muscular
arteries, arterioles, capillaries, venues, small veins, large veins
Which layer of blood vessels contain muscle? - ANSWER-tunica media
What system controls the tunica media? - ANSWER-sympathetic nervous system
What is the tunica intima made of? - ANSWER-endothelium
What is the tunica externa made of? - ANSWER-collagen fibers
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What does an elastic artery do? - ANSWER-takes out the bounding pulse
What does a muscular artery do? - ANSWER-vasoconstriction limits flow to inactive tissues
How many capillaries are there per capillary bed? - ANSWER-10-100
What tissues don't have capillaries? - ANSWER-cornea, lens, cartilage, tendons, ligaments
What is a continuous capillary? - ANSWER-tight junctions; in skin and muscle
What is a fenestrated capillary? - ANSWER-allows movement of small molecules through them;
intestines, kidneys, endocrine glands
What are sinusoidal capillaries? - ANSWER-allows blood cells through; liver, spleen, marrow
What is blood pressure? - ANSWER-force exerted on vessel wall
What is Poiseuille's Law? - ANSWER-fluid flow is inversely proportional to resistance
What are three ways that venous blood is pumped back to heart? - ANSWER-respiratory pump, muscular
pump, valves
How is mean arterial pressure maintained? - ANSWER-vasoconstriction and vasodilation
Where are chemoreceptors located? - ANSWER-aorta and carotid artery
What stimulates the chemoreceptors to function? - ANSWER-low oxygen, high carbon dioxide
BIOL 320 Exam 2 Study Guide 2025 – Detailed
Review, Practice Questions & Answer Key for
Cellular and Molecular Biology
Ace your BIOL 320 Exam 2 with this complete study guide and test review for 2025. Includes
exam-style practice questions, detailed solutions, and key concepts in cellular processes,
molecular biology, genetics, and physiology. Ideal for university students preparing for
midterm or second-unit biology exams. Strengthen your understanding and boost your score
with expert-reviewed materials.
BIOL 320 Exam 2,
BIOL 320 study guide,
BIOL 320 exam 2 answers,
BIOL 320 practice exam 2,
What are the types of arteries and veins, from aorta to vena cava? - ANSWER-elastic arteries, muscular
arteries, arterioles, capillaries, venues, small veins, large veins
Which layer of blood vessels contain muscle? - ANSWER-tunica media
What system controls the tunica media? - ANSWER-sympathetic nervous system
What is the tunica intima made of? - ANSWER-endothelium
What is the tunica externa made of? - ANSWER-collagen fibers
, 2|Page
What does an elastic artery do? - ANSWER-takes out the bounding pulse
What does a muscular artery do? - ANSWER-vasoconstriction limits flow to inactive tissues
How many capillaries are there per capillary bed? - ANSWER-10-100
What tissues don't have capillaries? - ANSWER-cornea, lens, cartilage, tendons, ligaments
What is a continuous capillary? - ANSWER-tight junctions; in skin and muscle
What is a fenestrated capillary? - ANSWER-allows movement of small molecules through them;
intestines, kidneys, endocrine glands
What are sinusoidal capillaries? - ANSWER-allows blood cells through; liver, spleen, marrow
What is blood pressure? - ANSWER-force exerted on vessel wall
What is Poiseuille's Law? - ANSWER-fluid flow is inversely proportional to resistance
What are three ways that venous blood is pumped back to heart? - ANSWER-respiratory pump, muscular
pump, valves
How is mean arterial pressure maintained? - ANSWER-vasoconstriction and vasodilation
Where are chemoreceptors located? - ANSWER-aorta and carotid artery
What stimulates the chemoreceptors to function? - ANSWER-low oxygen, high carbon dioxide
