Cellular Transport Review

What is isotonic solution?

• A solution with a higher concentration of solutes than the cell.

• A solution with a lower concentration of solutes than the cell.

• A solution with the same concentration of solutes as the cell.

• A solution that contains no solutes.

What role do transport proteins play in cellular transport?

• They help move substances across the cell membrane that cannot directly diffuse through the lipid bilayer.

• They provide structural support to the cell membrane.

• They act as enzymes to speed up chemical reactions in the cell.

• They store energy for cellular processes.

What is facilitated diffusion?

• The process of active transport of molecules against a concentration gradient.

• The process of passive transport of molecules across a cell membrane via specific transmembrane integral proteins.

• The process of diffusion that requires energy input from the cell.

• The process of osmosis where water moves through a selectively permeable membrane.

What is osmosis?

• The movement of water across a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.

• The process of diffusion of solutes across a membrane.

• The active transport of ions against a concentration gradient.

• The passive movement of molecules from an area of high concentration to an area of low concentration.

What is the function of the cell membrane?

• To provide energy to the cell.

• To protect the cell and regulate what enters and leaves the cell.

• To store genetic information.

• To facilitate cell division.

What is active transport?

• The movement of molecules across a cell membrane against their concentration gradient, requiring energy.

• The passive movement of molecules across a cell membrane without the use of energy.

• The process of molecules moving from an area of low concentration to an area of high concentration without energy.

• The movement of water molecules across a selectively permeable membrane.

What happens to a cell with 80% water when placed in a solution with 50% solute and 50% water?

• The cell will swell.

• The cell will remain the same size.

• The cell will shrink.

• The cell will burst.

What does it mean to be hydrophilic?

• It means water fearing.

• It means water loving.

• It means water neutral.

• It means water rejecting.

What is the significance of cell membrane fluidity?

• It allows for the movement of materials in and out of the cell and the mobility of proteins within the membrane.

• It prevents the entry of all substances into the cell.

• It maintains the shape of the cell without any flexibility.

• It allows for the formation of rigid structures within the membrane.

What is a solution with a higher concentration of solutes compared to the cell called?

• Hypotonic solution

• Isotonic solution

• Hypertonic solution

• Isosmotic solution