A&P Lab Exam 2: Exercise 35
Green, yellow, orange and red
A positive test for the presence of sugar is indicated by which colors?
Light blue, medium blue, dark blue and black
A postive test for the presence of starch is indicated by which colors?
The hydrochloric acid in the stomach acid corrodes the dentin away
People who practice purging themselves after eating (bulimics) ruin the dentin of their teeth. What causes the dentin loss?
Salivary glands; Pancreas; Small intestine
Enzymes that digest carbohydrates are produced by what organs?
Mouth; Pancreas; Stomach
Enzymes that digest lipids are produced by what organs?
Stomach; Pancreas; Small intestine
Enzymes that digest proteins are produced by what organs?
Stomach
Protein digestion begins in the __________.
Amino acids
Proteins are hydrolyzed into and absorbed as __________.
Lipase
enzyme that hydrolyzes lipids
Protease
enzyme that hydrolyzes proteins
Amylase
enzyme that hydrolyzes starch
Macromolecules
large molecules resulting from anabolism
Absorption
process that happens to nutrients after digestion
Substrate
the molecule acted on by an enzyme
Product
the molecule produced as a result of an enzymatic process
Emulsification
Bile salts prepare lipids for digestion by a process called ________________.
Mouth
Carbohydrate digestion begins in the __________.
Monosaccharides
Carbohydrates are hydrolyzed into and absorbed as _____________.
Mouth
Lipid digestion begins in the _________.
Glycerol; fatty acids
Lipids are hydrolyzed into and absorbed as __________ and __________.
7.4
The enzymes that digest carbohydrates work best at a(n) ______________ pH.
Lugol's iodine
The reagent used to test for the presence of starch was _____________.
Benedict's solution
The reagent used to test for the presence of sugar was ______________.
Enzymes work better on chewed and broken down mechanically into smaller portions with a greater surface area
The reason why we chew food (and crumbled the cracker in Lab Activity 1) is to _____________.
Proteins; lipids; carbohydrates
The three major food macromolecules digested in our GI tract are _____________, ______________, and _______________.
Control tubes
Why were there 2 tubes in Lab Activity 1 that had no enzyme added to them?
Enzyme
a biological catalyst