When reading the ingredient list, how does one know which ingredient is the main one?
It will be listed first.
100
How do the teeth and saliva work together in mechanical digestion?
The teeth break the food into pieces and the saliva moistens the food so that it can go down the esophagus.
100
Describe what the stomach looks like and where it is located.
A j-shaped, muscular pouch, located in the abdomen.
100
True or False: Almost all of the chemical digestion and absorption takes place in the large intestine.
False: it takes place in the small intestine
100
What is the difference between mechanical and chemical digestion?
Mechanical is where foods are physically broken down into smaller pieces.
Chemical - chemicals produced by the body break food down into smaller molecules to be absorbed into the blood stream.
200
The process by which your body breaks down food into smaller nutrient molecules.
Digestion
200
How does saliva start chemical digestion in the mouth?
There are enzymes in the saliva that begin to break down molecules.
200
a very strong acid that kills many bacteria and allows pepsin to work well
Hydrochloric acid
200
Millions of tiny little structures within the small intestine that absorb materials are known as...
Villi
200
Which type of digestion takes place in the mouth?
Both chemical and mechanical.
300
is the process by which nutrient molecules pass through the wall of your digestive system into your blood.
Absorption
300
What are the three types of teeth?
incisors, canines, and molars.
300
Food remains in the stomach until...
all of the solid material has been broken down into liquid form.
300
What is the largest organ in the body?
The Liver
300
The stomach contracting would be an example of which type of digestion?
Mechanical
400
What are the five categories on the "My Plate Diagram"
Fruits, vegetables, grains, proteins, and dairy.
400
What is the name of the tube that connects your mouth to your stomach?
the esophagus
400
Describe the chemical digestion in the stomach.
Digestive juices like pepsin and hydrochloric acid along with the churning motion break foods down and kill bacteria. They break molecules down in preparation for entering the small intestine.
400
As the liquid moves into the small intestine, it mixes with _________ and ______________ that are produced by the small intestine, liver, and the pancreas.
enzymes; secrections
400
What three things happen in the large intestine?
Water is absorbed into the bloodstream.
Bacteria feed on material passing through
Waste is prepared to be eliminated.
500
What are the three functions of the digestive system?
Breaks down food into molecules
Absorbs the molecules
Eliminates waste
500
What is the name of the flap of tissue that seals off your "wind pipe" while you swallow?
the epiglottis.
500
Describe the mechanical digestion of the stomach.
Three layers of smooth muscle contract to produce a churning motion.
500
What are three organs that assist the small intestine with digestion? What is the role of each?
Liver- produces bile, breaks down medicines and helps eliminate nitrogen; Pancreas - plays an important role in many body processes; and Gallbladder - stores bile