Starch, PAD, Urea, Indole

Using water to break chemical bonds:

• Reduction

• Oxidation

• Metabolism

• Hydrolysis

Catalysts that speed up chemical reactions in cells:

• Substrates

• End products

• Enzymes

• Molecules

Tags

NGSS.HS-LS2-5

What is the end product in a positive urea hydrolysis test?

• Indol

• Phenylalanine

• Disaccharides

• Ammonia

Describe the appearance of a positive starch hydrolysis test.

• Turns green

• Clear halo surrounding bacteria

• No halo around bacteria

• Turns pink

What reagent is used to test for Starch?

• Ferric chloride

• Zinc

• Sulfanilic acid and alph-naphthylamine

• Iodine

What reagent is used in the Phenylalanine Deaminase test?

• Ferric chloride

• Iodine

• Zinc

• Sulfanilic acid and alpha-naphthylamine

When Phenylalanine Deaminase is used in a reaction, what end products are produced?

• Monosaccharides and disaccharides

• Ammonia or nitrogen gas

• Phenylpyruvic acid, ammonia, and water

• Water and ammonia

What type of reaction occurs when oxygen is removed, or electrons are added to a substance?

• Oxidation

• Differential

• Hydrolytic

• Reduction

Tags

NGSS.HS-PS1-2

What are the end products of Starch Hydrolysis?

• Phenylpyruvic acid, ammonia and water

• Iodine and water

• Disaccharides and monosaccharides

• Ammonia and nitrate gas

What enzyme catalyzes Phenylalanine to Phenylpyruvic Acid?

• Amylase

• Phenylalanine deaminase

• Nitrate reductase

• Nitrite reductase