Enzymes/1st 9 Weeks Test

Enzymes are an example of __________________.

• Lipids

• Carbohydrate

• Protein

• Nucleic Acid

Glucose (sugar) is an example of a _________________.

• Carbohydrate

• Lipid

• Protein

• Nucleic Acid

What 3 letters do enzymes typically end in?

• -ose
• -ase
• -ese
• -tic

The smallest unit of life is a(n) _____________________.

• atom

• cell

• snail

• molecule

After the enzyme and substrate bind together and perform the reaction, what does the substrate become?

• a substrate
• an enzyme
• a product
• an active site

Waxes, oils and fats are examples of _________________.

• Carbohydrates

• Lipids

• Proteins

• Nucleic Acids

An enzyme speeds up a reaction by ______________________.

• lowering the activation energy.

• raising the activation energy.

• releasing energy.

• absorbing energy.

What is another name for enzymes?

• chemical catalysts
• microorganisms
• biological catalysts
• inorganic catalysts

Tags

NGSS.HS-PS1-5

Which of the following conclusions can be drawn from this graph?

• The optimum pH of the enzyme is 6.6.
  
• The optimum pH of the enzyme is 5.8
  
• The enzyme’s activity increases as pH increases 5.0 to 9.0
  
• The enzyme’s activity is greater around pH of 8.0 .
  

What happens when enzymes are heated to a high temperature?

• The enzymes die

• The shape of the enzyme changes as it denatures

• The enzymes become more active

• The enzymes remain the same