enzymes review

What is the primary function of the cell plasma membrane in cellular transport?

• To produce energy for the cell

• To compare different types of cells

• To regulate the movement of molecules in and out of the cell

• To store genetic information

What is the function of a semipermeable membrane in cell transport?

• It allows all substances to pass through freely.

• It blocks all substances from passing through.

• It allows only certain molecules to pass through.

• It allows only large molecules to pass through.

Tags

NGSS.MS-LS1-2

What is cell transport?

• The action of moving materials into or out of the cell.

• The process of cell division.

• The method of energy production in cells.

• The way cells communicate with each other.

How do enzymes relate to cell transport?

• They provide energy for cell transport.

• They create compounds needed for cell functions.

• They destroy harmful substances in cells.

• They transport oxygen in the bloodstream.

What are enzymes?

• A type of carbohydrate that stores energy

• A special type of protein that speeds up chemical reactions

• A lipid that forms cell membranes

• A nucleic acid that carries genetic information

Tags

NGSS.HS-LS1-3

NGSS.HS-LS2-3

What is another name for enzymes?

• Biological inhibitors

• Biological catalysts

• Biological reducers

• Biological enhancers

What is the role of enzymes in chemical reactions?

• They increase the activation energy.

• They decrease the activation energy.

• They do not affect the activation energy.

• They stop the reaction.

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-5

True or False: Activation energy refers to the energy needed to start a reaction.

• True

• False

Why are enzymes selective in the reactions they can work on?

• They have a specific color.

• They have a specific structure.

• They are made of metal.

• They are very large.

What happens to an enzyme when a substrate binds to it?

• The enzyme disappears.

• The enzyme changes color.

• The enzyme changes shape slightly.

• The enzyme becomes inactive.