BIOD 121 Module 2;Exam (2 Versions of
Each Exam, New)(2025): Essentials in
Nutrition: Portage Learning(QUESTIONS
WITH GRADE A ANSWERS)
,Saliva - --ANSWER---A watery fluid that contains much and enzymes
,Mucus - --ANSWER---lubricant
saliva amylase - --ANSWER---breaks down starch
lingual lipase - --ANSWER---breaks down fats
What are 2 enzymes in the mouth that aid in digestion? - --ANSWER---Saliva amylase and lingual
lipase
5 types of taste - --ANSWER---sweet, sour, salty, bitter, umami
Epiglottis - --ANSWER---A flap of tissue that seals off the trachea and prevents food from
entering.
sphincter muscle - --ANSWER---circular muscle, such as the anus
Pepsin - --ANSWER---Enzyme that breaks down proteins in the stomach
gastric lipase - --ANSWER---enzyme to digest fat
Gastrin - --ANSWER---digestive hormone that controls acid production in the stomach
Chyme - --ANSWER---mixture of enzymes and partially-digested food
What are the 3 functions of digestion? - --ANSWER---Growth, energy, support immune system
, What can trigger digestion before food enters the mouth? - --ANSWER---Cognition, sound, odor,
appearance, and taste
What are the 2 processes of digestion that occur once food is in the mouth? - --ANSWER---
Chemical Process and Mechanical Process
Mechanical Process - --ANSWER---chewing, churning to break down food
Chemical Process - --ANSWER---Enzymes, acids, bile and mucus to break down food
What benefits do enzymes provide in digestion? - --ANSWER---Enzymes act as a catalyst and
speed up chemical reactions
What are the three types of absorption? - --ANSWER---Passive diffusion, facilitated diffusion,
and active transport
passive diffusion - --ANSWER---NO ENERGY recquired. substance moves cells DOWN
concentration gradient
facilitated diffusion - --ANSWER---No energy required, but uses a protein carrier. Cells move
DOWN concentration gradient
active transport - --ANSWER---Energy-requiring process that moves material across a cell
membrane against a concentration difference
Peristalsis - --ANSWER---Involuntary waves of muscle contraction that keep food moving along
in one direction through the digestive system.
Each Exam, New)(2025): Essentials in
Nutrition: Portage Learning(QUESTIONS
WITH GRADE A ANSWERS)
,Saliva - --ANSWER---A watery fluid that contains much and enzymes
,Mucus - --ANSWER---lubricant
saliva amylase - --ANSWER---breaks down starch
lingual lipase - --ANSWER---breaks down fats
What are 2 enzymes in the mouth that aid in digestion? - --ANSWER---Saliva amylase and lingual
lipase
5 types of taste - --ANSWER---sweet, sour, salty, bitter, umami
Epiglottis - --ANSWER---A flap of tissue that seals off the trachea and prevents food from
entering.
sphincter muscle - --ANSWER---circular muscle, such as the anus
Pepsin - --ANSWER---Enzyme that breaks down proteins in the stomach
gastric lipase - --ANSWER---enzyme to digest fat
Gastrin - --ANSWER---digestive hormone that controls acid production in the stomach
Chyme - --ANSWER---mixture of enzymes and partially-digested food
What are the 3 functions of digestion? - --ANSWER---Growth, energy, support immune system
, What can trigger digestion before food enters the mouth? - --ANSWER---Cognition, sound, odor,
appearance, and taste
What are the 2 processes of digestion that occur once food is in the mouth? - --ANSWER---
Chemical Process and Mechanical Process
Mechanical Process - --ANSWER---chewing, churning to break down food
Chemical Process - --ANSWER---Enzymes, acids, bile and mucus to break down food
What benefits do enzymes provide in digestion? - --ANSWER---Enzymes act as a catalyst and
speed up chemical reactions
What are the three types of absorption? - --ANSWER---Passive diffusion, facilitated diffusion,
and active transport
passive diffusion - --ANSWER---NO ENERGY recquired. substance moves cells DOWN
concentration gradient
facilitated diffusion - --ANSWER---No energy required, but uses a protein carrier. Cells move
DOWN concentration gradient
active transport - --ANSWER---Energy-requiring process that moves material across a cell
membrane against a concentration difference
Peristalsis - --ANSWER---Involuntary waves of muscle contraction that keep food moving along
in one direction through the digestive system.
