Unit 2 - Biochemistry

What happens to an enzyme when it denatures?

• The activation energy of the reaction is doubled.

• The activation energy of the reaction is lowered.

• It's optimal conditions for temperature of the enzyme are doubled.

• The shape of the enzyme molecule is changed.

Most enzymes are composed of .....

• Lipids

• Carbohydrates

• Proteins

• Nucleic Acids

Tags

NGSS.HS-LS1-1

One function of lipids is to store energy. What is another function of lipids in the human body?

• To form cell membranes

• To make energy from the sun.

• To control chemical reactions.

• To provide energy for the cell.

Where do substrates bind on an enzyme?

• voltage-gated channels
• surface receptor
• calcium channels
• active site

What is the purpose  of an enzyme?

• give permission for the reaction
• raise activation energy
• speed up reactions
• control how many reactions occur

Based on the graph, what is the optimal temperature for this enzyme? 

• 15^oC
• 40^oC
• 30^oC
• 35^oC

Letter C...

• active site
• enzymes
• substrate
• products

Tags

NGSS.HS-LS2-5

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

• Coenzyme
• Substrate
• Vitamin
• Polypeptide

If an element has an atomic number of 26 and an atomic mass of 56, how many neutrons does it have?

• 26
• 30
• 56
• 82

In which type of bond are electrons transferred?

• Non-polar Covalent Bonds
• Polar Covalent Bonds
• Ionic Bonds
• Hydrogen Bonds