Cellular Structure and Function Vocab (Part 1)

Front

active transport

Back

The movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration, requiring energy.

Front

apoptosis

Back

The process of programmed cell death that occurs in multicellular organisms.

Front

aquaporin

Back

A membrane protein that facilitates the transport of water across cell membranes.

Front

ATP (adenosine triphosphate)

Back

A molecule that carries energy within cells.

Front

cell membrane (plasma membrane)

Back

The biological membrane that separates and protects the interior of all cells from the outside environment.

Front

cell wall

Back

A rigid layer lying outside the plasma membrane of the cells of plants, fungi, and bacteria.

Front

centrioles

Back

A small set of microtubules arranged in a specific way, found in animal cells and involved in cell division.

Front

channel protein

Back

A protein that allows the transport of specific substances across a cell membrane.

Front

chloroplast

Back

An organelle found in plant cells and eukaryotic algae that conducts photosynthesis.

Front

cholesterol

Back

A type of lipid molecule that is biosynthesized by all animal cells and is an essential structural component of animal cell membranes.