Enzymes

How do enzymes speed up chemical reactions? Enzymes

• lower the activation energy of chemical reactions.

• raise the temperature of the cell, speeding chemical reactions.

• store ATP, allowing more energy to be used in chemical reactions.

• act as miniature "transfer trucks", gathering materials for chemical reactions, and placing them together.

Tags

NGSS.HS-PS1-5

What is the optimum temperature for this enzyme?

• 20 degrees Celsius

• 45 degrees Celsius

• 52 degrees Celsius

• 64 degrees Celsius

Tags

NGSS.HS-PS1-5

What can be inferred using the graph?

• Cells can function equally as well at all pH values.

• Cells do not function well at pH values that are too high or too low.

• Cells function best at high pH values.

• Cells function best at low pH values.

Which of the following two factors affect an enzyme's operation the most?

• amount of light and temperature

• blood glucose and pH

• temperature and pH

• amount of light and pressure

What substances are formed as a result of this reaction?

• hydrogen peroxide and water

• water and oxygen

• hydrogen peroxide and oxygen

• water and ozone

Tags

NGSS.MS-PS1-2

What is the optimum pH for the enzyme salivary amylase?

• 2

• 5

• 6.2

• 9.1

Which labeled part is the substrate?

• letter A

• letter B

• letter D

• letter E

Which of the following describes the role that enzymes play in the process of metabolism?

• Enzymes carry the genetic instructions required for a cell to initiate metabolism.

• Enzymes increase the rate of the chemical reactions carried out during metabolism.

• Enzymes provide the chemical energy that is broken down and released during metabolism.

• Enzymes store the chemical energy that is used to construct nucleic acids during metabolism.

Tags

NGSS.HS-LS1-7

Where does the substrate bind on an enzyme?

• active site

• allosteric site

• binding site

• product site

The process that enzymes assist in facilitating to build polymers is

• dehydration synthesis

• hydrolysis

• hydrolyriz