BIOD 121 - Module 2 Exam Questions with Correct Answers Latest Update 2025-2026
What is digestion? - Answers Transforming food into basic units for absorption and use by the
body
Basic nutrients are used for ... - Answers Growth, energy, immune system, and performing daily
activities
Food digestion provides ... to ... - Answers Energy; muscles and brain
How is cognition affecting the cascade of events? - Answers Thoughts of food can start flow of
saliva
How is sound affecting the cascade of events? - Answers Hearing a description of a meal
How is odor affecting the cascade of events? - Answers Smells stimulate hunger response and
influence taste
How is appearance affecting the cascade of events? - Answers Seeing the food stimulates
hunger
How is taste affecting the cascade of events? - Answers It begins as food enters the mouth
The food once in the mouth begins to break down ... - Answers Mechanically and chemically
Peristalsis - Answers The movement of food mixture along tract with use of involuntary
muscles
Enzymes ... reactions - Answers Catalyze
What is absorption? - Answers Getting nutrients to the cells
Where does absorption take place? - Answers Along the GI tract
What is the innermost layer of the intestinal wall? - Answers The mucosa
The mucosa is made up of ... - Answers Absorptive cells and glands
The outer layer of the intestinal wall is composed of ... - Answers Circular and longitudinal
muscles
What is the function of circular and longitudinal muscles? - Answers They mix and move food
along (control flow of particles)
Passive diffussion - Answers Substances move in/out of cells passively without the use of
energy
Nutrients move from ... to ... concentrations in passive diffusion - Answers High; low
, Facilitated diffusion - Answers Movement of nutrients with the use of protein carriers; no energy
is required
Nutrients move from ... to ... concentrations in facilitated diffusion - Answers High; low
Active transport - Answers Movement of large molecules into the cells, requiring energy and a
transport protein
Nutrients move from ... to ... concentrations in active transport - Answers Low; high
What are the accessory organs of digestion? - Answers Liver, salivary glands, pancreas, and
gallbladder
What is saliva? - Answers A watery fluid that contains mucus and enzymes
What enzymes are included in saliva? - Answers Salivary amylase (starch) and lingual lipase
(fats)
What organ is crucial for taste? - Answers Tongue
What is located at the end of the esophagus? - Answers Esophageal sphincter muscle
How much food can the stomach hold? - Answers 4 cups for 2-3 hours
What are the functions of the stomach? - Answers Storing, mixing, dissolving, and digesting
food
Enzymes in the stomach are activated by ... - Answers Stomach acid
Pepsin - Answers Enzyme that breaks down protein in the stomach
Gastric lipase - Answers Enzyme that digests fats in the stomach
What is chyme? - Answers A mixture of food, fluids, and enzymes in the stomach
Gastrin - Answers A hormone that controls concentration of acid, once released, it activates
pepsin
Gastrin can be stimulate by ... - Answers Thoughts of food, or ingestion
Intrinsic factor - Answers A vital glycoprotein needed for absorption of vitamin B12
Which sphincter control the release of chyme to the small intestine? - Answers Pyloric sphincter
How long is the small intestine? - Answers 20 feet long
The small intestine is divided into ... (in order) - Answers Duodenum, jejunum, and ileum
Which section of the small intestine is the widest one? - Answers Duodenum
What is digestion? - Answers Transforming food into basic units for absorption and use by the
body
Basic nutrients are used for ... - Answers Growth, energy, immune system, and performing daily
activities
Food digestion provides ... to ... - Answers Energy; muscles and brain
How is cognition affecting the cascade of events? - Answers Thoughts of food can start flow of
saliva
How is sound affecting the cascade of events? - Answers Hearing a description of a meal
How is odor affecting the cascade of events? - Answers Smells stimulate hunger response and
influence taste
How is appearance affecting the cascade of events? - Answers Seeing the food stimulates
hunger
How is taste affecting the cascade of events? - Answers It begins as food enters the mouth
The food once in the mouth begins to break down ... - Answers Mechanically and chemically
Peristalsis - Answers The movement of food mixture along tract with use of involuntary
muscles
Enzymes ... reactions - Answers Catalyze
What is absorption? - Answers Getting nutrients to the cells
Where does absorption take place? - Answers Along the GI tract
What is the innermost layer of the intestinal wall? - Answers The mucosa
The mucosa is made up of ... - Answers Absorptive cells and glands
The outer layer of the intestinal wall is composed of ... - Answers Circular and longitudinal
muscles
What is the function of circular and longitudinal muscles? - Answers They mix and move food
along (control flow of particles)
Passive diffussion - Answers Substances move in/out of cells passively without the use of
energy
Nutrients move from ... to ... concentrations in passive diffusion - Answers High; low
, Facilitated diffusion - Answers Movement of nutrients with the use of protein carriers; no energy
is required
Nutrients move from ... to ... concentrations in facilitated diffusion - Answers High; low
Active transport - Answers Movement of large molecules into the cells, requiring energy and a
transport protein
Nutrients move from ... to ... concentrations in active transport - Answers Low; high
What are the accessory organs of digestion? - Answers Liver, salivary glands, pancreas, and
gallbladder
What is saliva? - Answers A watery fluid that contains mucus and enzymes
What enzymes are included in saliva? - Answers Salivary amylase (starch) and lingual lipase
(fats)
What organ is crucial for taste? - Answers Tongue
What is located at the end of the esophagus? - Answers Esophageal sphincter muscle
How much food can the stomach hold? - Answers 4 cups for 2-3 hours
What are the functions of the stomach? - Answers Storing, mixing, dissolving, and digesting
food
Enzymes in the stomach are activated by ... - Answers Stomach acid
Pepsin - Answers Enzyme that breaks down protein in the stomach
Gastric lipase - Answers Enzyme that digests fats in the stomach
What is chyme? - Answers A mixture of food, fluids, and enzymes in the stomach
Gastrin - Answers A hormone that controls concentration of acid, once released, it activates
pepsin
Gastrin can be stimulate by ... - Answers Thoughts of food, or ingestion
Intrinsic factor - Answers A vital glycoprotein needed for absorption of vitamin B12
Which sphincter control the release of chyme to the small intestine? - Answers Pyloric sphincter
How long is the small intestine? - Answers 20 feet long
The small intestine is divided into ... (in order) - Answers Duodenum, jejunum, and ileum
Which section of the small intestine is the widest one? - Answers Duodenum
