Chemical Reactions and Enzymes

Enzymes are an example of

• lipids

• carbohydrates

• protein

• nucleic acid

Tags

NGSS.HS-LS1-1

What is a substance called if it speeds up a chemical reaction?

• reusable

• catalyst

• specific

• fragile

William is trying to unlock his phone, but only his fingerprint will work. What is this concept similar to in enzymes?

• Enzymes act as catalysts.

• Enzymes are proteins

• Enzymes lower activation energy

• Specific enzymes match specific substrates.

What is a substrate?

• An unhelped reactant

• A reactant helped by an enzyme

• An unhelped product

• a product helped by an enzyme

Letter D...

• enzyme

• active site

• substrate

• products

Letter B...

• substrate

• active site

• enzyme

• products

Letter C...

• products

• substrate

• enzymes

• active site

Letter E...

• active site

• products

• substrate

• enzyme

An enzyme speeds up a reaction by

• raising the activation energy

• lowering the activation energy

• releasing energy

• absorbing energy.

Tags

NGSS.HS-LS1-7

What happens when enzymes are heated to a high temperature?

• The shape of the enzyme are changed and it denatures

• The enzymes die

• The enzymes' amino acid sequence changes

• The enzymes remain the same