Cell Transport Quizs

What is Passive Transport?

• The movement of molecules across the cell membrane from a region of higher concentration to lower concentration without using cellular energy.

• The active movement of molecules against their concentration gradient using energy.

• The process of molecules moving through a membrane with the help of transport proteins.

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

What is Osmotic Pressure?

• The pressure exerted by a gas in a closed container.

• The force produced by the net movement of water out of or into a cell due to solute concentration differences.

• The pressure required to compress a liquid into a solid state.

• The force that drives the movement of air in and out of the lungs.

Isotonic

• Describes a solution where the concentration of solutes is the same inside and outside the cell, causing no net water movement.

• A solution with a higher concentration of solutes outside the cell than inside, leading to cell shrinkage.

• A solution that causes cells to swell due to a lower concentration of solutes outside the cell.

• A solution that has no effect on cell volume, regardless of solute concentration.

What is Homeostasis?

• A state of relatively constant internal physical and chemical conditions that an organism or cell maintains to function properly.

• A process of cell division that results in two identical daughter cells.

• The ability of an organism to adapt to its environment over time.

• A mechanism by which organisms reproduce and pass on their genetic material.

What does the term Hypertonic refer to?

• A solution with a lower solute concentration than the cell, causing water to move into the cell.

• A solution that has a higher solute concentration than the cell, causing water to move out of the cell.

• A solution with equal solute concentration as the cell, causing no net movement of water.

• A solution that is isotonic to the cell, resulting in cell swelling.

What is Pinocytosis?

• A type of endocytosis where a cell takes in extracellular fluid and its dissolved solutes, also known as 'cell drinking'.

• A process where cells expel waste materials.

• A method of cell division in prokaryotes.

• A mechanism for the transport of large molecules across the cell membrane.

Aquaporin

• Water channel proteins that facilitate the rapid passage of water molecules into or out of cells.

• Proteins that transport ions across the cell membrane.

• Enzymes that catalyze biochemical reactions in the cell.

• Structural proteins that provide support to the cell membrane.

What is Exocytosis?

• The process of releasing large amounts of material from a cell by the fusion of a vesicle with the cell membrane.

• The process of taking in materials by engulfing them in a vesicle.

• The process of breaking down substances within a cell.

• The process of transporting materials across the cell membrane without vesicles.

What is Endocytosis?

• The process of taking material into the cell by forming a vesicle from infoldings of the cell membrane.

• The process of expelling material from the cell through vesicles.

• The process of transporting materials across the cell membrane without vesicles.

• The process of breaking down materials within the cell using enzymes.

What are Protein Pumps?

• Transport proteins that use cellular energy to move small molecules and ions across the cell membrane against their gradient.

• Proteins that facilitate passive transport of molecules across the cell membrane without energy.

• Enzymes that break down proteins into amino acids for absorption.

• Structural proteins that provide support and shape to the cell.