BIOD 121 Module 2 Questions with Correct Answers

BIOD 121 Module 2 Questions with Correct Answers


Question 1:
What is digestion?
Answer:
Transforming food into basic units for absorption and use by the body



Question 2:
Basic nutrients are used for...
Answer:
Growth, energy, immune system, and performing daily activities



Question 3:
Food digestion provides... to...
Answer:
Energy; muscles and brain



Question 4:
How is cognition affecting the cascade of events?
Answer:
Thoughts of food can start flow of saliva



Question 5:
How is sound affecting the cascade of events?
Answer:
Hearing a description of a meal



Question 6:
How is odor affecting the cascade of events?
Answer:
Smells stimulate hunger response and influence taste

,Question 7:
How is appearance affecting the cascade of events?
Answer:
Seeing the food stimulates hunger



Question 8:
How is taste affecting the cascade of events?
Answer:
It begins as food enters the mouth



Question 9:
The food once in the mouth begins to break down...
Answer:
Mechanically and chemically



Question 10:
Peristalsis
Answer:
The movement of food mixture along tract with use of involuntary muscles



Question 11:
Enzymes... reactions
Answer:
Catalyze



Question 12:
What is absorption?
Answer:
Getting nutrients to the cells

,Question 13:
Where does absorption take place?



Answer:
Along the GI tract



Question 14:
What is the innermost layer of the intestinal wall?
Answer:
The mucosa



Question 15:
The mucosa is made up of...
Answer:
Absorptive cells and glands



Question 16:
The outer layer of the intestinal wall is composed of...
Answer:
Circular and longitudinal muscles



Question 17:
What is the function of circular and longitudinal muscles?
Answer:
They mix and move food along (control flow of particles)



Question 18:
Passive diffussion
Answer:
Substances move in/out of cells passively without the use of energy

, Question 19:
Nutrients move from... to... concentrations in passive diffusion
Answer:
High; low



Question 20:
Facilitated diffusion
Answer:
Movement of nutrients with the use of protein carriers; no energy is required



Question 21:
Nutrients move from... to... concentrations in facilitated diffusion
Answer:
High; low



Question 22:
Active transport
Answer:
Movement of large molecules into the cells, requiring energy and a transport protein



Question 23:
Nutrients move from... to... concentrations in active transport
Answer:
Low; high



Question 24:
What are the accessory organs of digestion?
Answer:
Liver, salivary glands, pancreas, and gallbladder