Enzymes L1

Enzymes

Multiple Select

Which are useful and important roles of enzymes?

• Metabolic catalysts

• Diagnostic tools

• Therapeutic treatments

• Disease protection

Fill in the Blank

Enzymes are proteins that increase the rate of reaction by lowering the energy of ...

Fill in the Blank

Enzymes are not altered or ??? during reactions.

Poll

Can enzymes be reused?

• Yes

• No

• Not Sure

Multiple Choice

What defines a substrate?

• The reactant in a biochemical reaction.

• The substance that is metabolised.

• The substance that is catalysed.

• All of these

Multiple Select

Which bonds would a protease enzyme act on?

• Glycosidic

• Hydrogen

• Peptide

• Covalent

Multiple Choice

What is another name for enzymes?

• chemical catalysts
• microorganisms
• biological catalysts
• inorganic catalysts

Multiple Choice

What happens when enzymes are heated to a high temperature?

• The enzymes die.
• The shapes of the enzyme are altered denature
• The enzymes' amino acid sequence changes.
• The enzymes remain the same

Multiple Choice

An enzyme speeds up a chemical reaction in the cell but can only be used once.  True or False? 

• true
• false

Multiple Choice

Enzymes are...

• nucleic acids
• proteins
• lipids
• carbohydrates

Multiple Choice

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

• Coenzyme
• Substrate
• Vitamin
• Polypeptide

Multiple Choice

With what 3 letters do enzymes typically end?

• -ose
• -ase
• -ese
• -tic

Multiple Choice

Each enzyme only has 1 substrate that will fit its active site.  What is this called?

• reusablility
• denaturation
• specificity
• fragility

Multiple Choice

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

• reusable
• catalyst
• specific
• fragile