Unit 3 Concept 1 and 2 (Enzymes and ATP)

Chemical reactions that absorb more energy than they release are considered to be _______

• Exothermic

• Catalyzed

• Endothermic

• Anabolic

Tags

NGSS.HS-PS1-4

In the enzyme-substrate complex pictured below, what is happening during the second picture?

• The catalyzed reaction is releasing a product.

• The enzyme is breaking bonds in the substrate.

• The enzyme is keeping the bonds the same in the substrate.

• The substrate is beginning to bind to the enzyme.

Which phrase best describes an exothermic chemical reaction?

• Does not absorb any energy

• Forms products with higher bond energy than reactants.

• Is in a state of equilibrium.

• Releases more energy than it absorbs.

Tags

NGSS.HS-PS1-4

The molecule that an enzyme binds to is known as its

• Substrate

• Monomer

• Polymer

• Complimentary Base

Reactants bind to enzymes at the _______

• Substrate

• Product

• Activation Energy

• Active Site

In the graph to left, an increase in temperature results in ___________

• a decrease in the required activation energy.

• an increase in reaction rate.

• a decrease in the rate of reaction.

• an increase in both the reaction rate and activation energy.

Tags

NGSS.HS-PS1-5

Which macromolecule found in the food you eat will your cells break down first to get ATP?

• Carbohydrates

• Lipids

• Proteins

• Nucleic Acids

Tags

NGSS.HS-LS1-7

Which phrase best describes the function of the ATP molecule?

• absorbs energy

• increases energy

• stores energy

• creates energy

Tags

NGSS.HS-LS1-7

Energy is released from an ATP molecule for cellular processes when it

• converts a phosphate group to ADP.

• attaches an extra phosphate group.

• loses a phosphate group.

• produces a sugar molecule.

Where does your body get the energy for reattaching a third phosphate to ADP, creating ATP?

• from the sun

• usually from carbs

• from nucleic acids

• from breaking ATP

Tags

NGSS.HS-LS1-7