AJACK Cell Enzymes Tier 3 vocab quiz

Enzymes are ......

• biological catalysts that speed up chemical reactions in living things

• biological catalysts that slow down chemical reactions in living things

• A type of fat

An Active site is.......

• The place on an enzyme where the correct substrate fits into perfectly

• A place where builders are working

• A hole in an enzyme

• The reactants

biological catalysts definition is a molecule that

• a living cat

• that speed up chemical reactions in a lab

• speeds up chemical reactions in living things

• a protein

Active site definition

• The place with the correct shape to fit the substrate

• The place with the wrong shape to fit the substrate

• The substate's shape

Which is the definition of the lock and key hypothesis

• The enzyme has a general shaped active site for any substrate to fit

• The enzyme has a perfect shaped active site for only the correct substrate to fit

To catalyse a reaction means to

• To stop the reaction

• slow down a reaction

• Speed up the reaction

Tags

NGSS.HS-PS1-5

Deactivate mean......

• The temperature is too low for the enzyme to work

• The temperature is too high or the pH is wrong for the enzyme to work

• The temperature or pH is perfect for the enzyme to work

Denature means

• The enzymes active site changes shape permanently

• The enzymes active site changes shape temporarily

• The enzymes active site stays the same shape

Optimum means

• The mean rate

• The fastest rate

• The slowest rate

• The median rate

Tags

NGSS.HS-PS3-3

definition of catalyst

• Something that slows down a chemical reaction without taking part in it

• Something that slows down a chemical reaction by taking part in it

• Something that speeds up a chemical reaction without taking part in it

• Something that speeds up a chemical reaction by taking part in it