Digestion and Nutrition Flashcards
Where does chemical digestion end?
duodenum
Hydrochloric acid is necessary in the stomach for the conversion of pepsinogen into its active protein-digesting form called __________.
gastrin
Which one of the following is NOT absorbed by the human large intestine:
protein
In which of the following digestive system organs does peristalsis occur? Select all that may apply!
esophagus, stomach, large and small intestine
Which of the following statements about the digestion of macromolecules is false?
lipids get broken down into fatty acids and amino acids
The kneading and churning of food your stomach is an example of what kind of digestion?
mechanical
The minor nutrients consist of __________.
minerals, vitamins
Which of these events describes a chemical breakdown of food:
enzyme action of maltase acting on starch to break it into maltose
A chemical reaction of metabolism in which substances are broken down into simpler substances is referred to as __________
catabolism
The structure that forms the anterior roof of the mouth is the:
hard palate
Which of the following structures secretes enzymes that help us digest carbohydrates, lipids, and proteins?
pancreas
Which digestive system organ is the target of gastrin:
stomach
Which one of the following represents the correct order through which food passes in the alimentary canal:
mouth, pharynx, esophagus, stomach, small intestine, large intestine
Where in the body is vitamin K produced by bacteria?
large intestines
The first nutrient to be chemically digested is
starch
Most chemical digestion takes place in the small intestine; specifically what part?
duodenum
Which of the following is the moist innermost layer that lines the alimentary canal:
mucosa
The outer most layer of the alimentary canal is referred to as the __________.
serosa
What part of the tooth does #3 represents?
neck
Glucose serves as our body’s main energy fuel during the _______ nutritional state. Body reserves serve as our body’s main energy fuel when the GI tract is _______.
absorptive; empty
To what organ of the digestive system is #2 pointing?
salivary glands
What is the name of the type of tooth #4 represents?
premolars
Which of the following structures creates a substance that makes it possible for us to digest fats?
liver, pancreas
