Cfa Biology

Which enzyme would most likely function in the stomach?

• chymotrypsin

• cholinesterase

• pepsin

• papain

What is the optimal pH of the enzyme chymotrypsin?

• 4

• 6

• 8

• 10

What is the substance labeled X?

• substrate

• enzyme

• lipid

• glucose

Tags

NGSS.HS-LS1-7

Which two enzymes would function in a region of the human body having a neutral pH?

• B and D

• C and D

• A and B

• B and C

• The enzyme works better at 10^oC than 50^oC.

• The enzyme works better at 5^oC than 60^oC.

• The enzyme works better at 35^oC than at either temperature extreme.

• The enzyme works at the same level in all environments.

Tags

NGSS.MS-LS1-5

What type of organic molecule is an enzyme?

• carbohydrate

• lipid

• protein

• nucleic acid

Tags

NGSS.HS-LS1-6

Baby food manufacturers sometimes use proteases in their products. Proteases function by catalyzing the breakdown of protein, making digestion easier for babies. What type of molecule are proteases?

• enzymes

• substrates

• reactants

• products

Enzymes catalyze chemical reactions in the human body. What statement best describes how enzymes work?

• They speed up chemical reactions by increasing the activation energy.

• They slow down chemical reactions by increasing the activation energy.

• They speed up chemical reactions by lowering the activation energy.

• They slow down chemical reactions by lowering the activation energy.

Tags

NGSS.HS-PS1-5

Which term identifies the section of the diagram that is labeled X?

• product

• enzyme

• active site

• substrate

What is the name for substance W, which fits inside the molecule Y and is transformed into two separate products?

• enzyme

• substrate

• active site

• lipid