Cell Transport Concept Map

Cell transport refers to the various mechanisms and processes that cells use to move substances across their membranes, essential for maintaining homeostasis, acquiring nutrients, and expelling waste products.

The two main types of cell transport are passive transport, which does not require energy, and active transport, which requires energy to move substances against their concentration gradient.

Passive transport is a biological process that involves the movement of molecules across cell membranes without energy input, relying on the concentration gradient.

Active transport is a biological process where cells move molecules against their concentration gradient, requiring energy, typically in the form of ATP.

A concentration gradient refers to the gradual change in the concentration of solutes in a solution as a function of distance, crucial for processes like diffusion.

Osmosis is a specific type of passive transport that refers to the movement of water molecules through a selectively permeable membrane.

ATP, or adenosine triphosphate, serves as the primary energy carrier in cells, providing energy for various biological processes such as muscle contraction and nerve impulse propagation.

The sodium-potassium pump is an active transport mechanism that moves sodium ions out of the cell and potassium ions into the cell, crucial for maintaining the electrochemical gradient.

Endocytosis is a cellular process in which substances are brought into the cell by engulfing external materials, forming a vesicle containing the ingested material.