BIOD 151 Lab Exam Module 3 – Questions, Answers & Key Concepts 2025

BIOD 151 Lab Exam Module 3: Questions, Answers &
Key Concepts real exam!!! 2025




List the 5 stages of digestion. - ANSWER ✨✔---Ingestion, Digestion, Absorption, Compaction,
Defecation



The esophagus is considered an accessory organ of the GI tract. - ANSWER ✨✔---False



The tongue is considered a primary organ of the GI tract. - ANSWER ✨✔---False



Chemical digestion in the mouth is carried out by way of salivary amylase. - ANSWER ✨✔---True



What is the function of the structure pictured above specified by the pointer? - ANSWER ✨✔---The
function of the epiglottis pictured above is to prevent food from entering the airway when you swallow



Identify the structure in the picture above, specified by the pointer, then describe its relationship to the
trachea using anatomical terminology. - ANSWER ✨✔---The Esophagus above runs posteriorly to
the trachea.



Identify the sphincter pictured above (specified by the arrow and highlighted in blue) and describe its
function. - ANSWER ✨✔---The pyloric sphincter regulates the passage of food from the stomach to
the small intestine. It keeps food from flowing back into the stomach.