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Review for Energy Test
Review for Energy Test
32
Science
9th Grade
10/14/2014

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Term
Physical fitness depends on....
Definition
both your physical activity level and your dietary input.
Term
What is meant by the term, physical activity level?
Definition
this is how often and how intense is your exercise
Term
What is meant by the term, dietary input?
Definition
this is the value of all the foods and nutrient you take into your body
Term
What is the reagent used for testing for the presence of sugar?
Definition
Bennedict's solution
Term
What is the reagent used to test for starch?
Definition
Lugol's Iodine solution
Term
What is the reagent used to test for protein?
Definition
Biuret solution
Term
What is the indicator used to test for lipids?
Definition
brown paper
Term
put these in order: large intestine, mouth, small intestine, esophagus, stomach
Definition
mouth - esophagus - stomach - small intestine - large intestine
Term
What is mechanical break down of food?
Definition
this is smashing. grinding, or chewing
Term
What is the chemical break down of food?
Definition
this is when the food molecules are broken apart by chemicals such as acid or enzymes
Term
Where does mechanical break down of food occur?
Definition
Mouth and stomach
Term
Where does chemical break down of food occur?
Definition
Mouth, stomach, small intestine.
Term
Where is bile made?
Definition
in the liver
Term
What is bile?
Definition
a substance that helps digest fats
Term
Where is bile stored?
Definition
in the gallbladder
Term
What is pepsin?
Definition
an enzyme that helps break down protein
Term
What is Hydrochloric Acid?
Definition
it is a strong acid found in our stomach that helps digest food
Term
What is amylase?
Definition
it is an enzyme in our mouth that helps break down starch into sugar
Term
What is insulin?
Definition
it is a substance that helps regulate sugar levels in our blood
Term
Where is insulin produced?
Definition
in the pancreas
Term
What is an accessory organ?
Definition
These are organs associated with digestion but are not directly part of the digestive canal.
Term
What is starch broken down into?
Definition
sugar molecules
Term
What is a macromolecule?
Definition
a very large molecule such as protein, starch, or lipid
Term
What is lipid broken down into?
Definition
fatty acids and glycerol
Term
What are proteins broken down into?
Definition
amino acids
Term
What is absorption?
Definition
This is when nutrients are taken up into the bloodstream to be used by the body
Term
What is excretion?
Definition
This is the removal of waste from the body
Term
What is digestion?
Definition
This is both the mechanical and chemical breakdown of food in the body.
Term
What color will you observe with the Bennedict's test when you have a positive result?
Definition
pea - green or brick red
Term
What color will you observe with the Biuret test when you have a positive result?
Definition
pinkish/purple
Term
What will you observe with the brown paper when you have a positive result for lipids?
Definition
a translucent spot
Term
What will you observe with the lugol's iodine when you have a positive result?
Definition
dark black/dark purple
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