Enzymes

Enzymes are an example of

• Lipids

• Carbohydrate

• Protein

• Nucleic Acid

Tags

NGSS.MS-LS3-1

Enzymes are capable of increasing the rate of a chemical reaction within a living cell.  Enzymes accomplish this through which of the following means?

• reducing the number of products   
• reducing the activation energy
• increasing the temperature of the cell
• increasing the concentration of reactants 

Tags

NGSS.MS-PS1-2

Any substance that is acted upon by an enzyme is called a(n)?

• Coenzyme
• Substrate
• Vitamin
• Polypeptide

Tags

NGSS.MS-LS1-7

After the enzyme and substrate bind together and perform the reaction, what does the substrate become?

• a substrate
• an enzyme
• a product
• an active site

At high temperatures enzyme activity declines because of:

• Denaturation
• Decreased Kinetic Motion
• Increased H-Bonding
• Dissociation of Ionic Compounds

Tags

NGSS.HS-PS1-5

At low temperatures enzyme activity declines because of:

• Denaturation
• Decreased Kinetic Motion
• Increased H-Bonding
• Dissociation of Ionic Compounds

Tags

NGSS.HS-PS1-5

Which explanation best fits the graph for pH's effect on an enzyme?

• As the pH gets closer to neutral more H-Bonds are broken
• Larger numbers of H+ & OH- ions distort the active site
• There are more collisions between substrates and active sites near the optimal pH
• Low pHs cause more H-Bonds to happen near the active site

The mouth contains salivary glands which produce

• polysaccharides
• amylases
• proteases
• lipases

Tags

NGSS.MS-LS1-7

Pepsin is an enzyme that acts on

• lipids
• proteins
• carbohydrates
• nucleic acids

Tags

NGSS.MS-LS1-7

Babies do not have well developed digestive systems for breaking down proteins; therefore baby food is prepared after treatment with which enzyme? 

• protease
• lipase
• carbohydrase
• synthase