Microbiology Test

Enzymes are responsible for-

• Speeding up reactions

• Giving the body energy

• Slowing down reactions

Which of these is most likely an enzyme?  

• Sucrose

• Galactose

• Fructose

• Amylase

Letter B...

• active site

• enzyme

• substrate

• products

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

What is the primary role of enzymes inside of living cells? 

• store genetic information

• store energy

• they help fight infections

• speed up chemical reactions 

Enzymes are able to speed up chemical reactions because they - 

• increase the temperature inside the cell

• reduce the friction between the reactants

• make the raw materials more chemically reactive

• lower the activation energy of the reaction

Tags

NGSS.HS-PS1-4

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

• The optimum pH of the enzyme is 6.6.
  

• This enzyme works best in highly acidic environments
  

• The enzyme’s activity increases as pH increases 7.0 to 9.0
  

• The enzyme’s activity is greater around pH of 8.0 .
  

Sucrase has an optimum temperature of 37 C and an optimum pH of 6.2. What would happen if the pH changed to 3?

• Sucrase would continue to work the same

• The reaction sucrase catalyzes would speed up

• The reaction sucrase catalyzes would slow down

The area that the substrate fits into on the enzyme is called the:

• Active Site

• Allosteric Site

• DiSulphide Bridge

• β-Pleated Sheet

Most enzymes have the ending:

• -ase

• -ose

• -ic acid

• -ate