Concept 2- Cells

Front 1

Active Transport

Back 1

the movement of ions or molecules across a cell membrane into a region of higher concentration, assisted by enzymes and requiring energy

Front 2

Amphipathic

Back 2

of a molecule, especially a protein) having both hydrophilic and hydrophobic parts.

Front 3

Apoptosis

Back 3

the death of cells that occurs as a normal and controlled part of an organism's growth or development

Front 4

Aquaporin

Back 4

integral membrane proteins from a larger family of major intrinsic proteins (MIP) that form pores in the membrane of biological cells.

Front 5

Axon

Back 5

the long threadlike part of a nerve cell along which impulses are conducted from the cell body to other cells

Front 6

Carrier Protein

Back 6

integral/intrinsic membrane proteins; that is they exist within and span the membrane across which they transport substances. The proteins may assist in the movement of substances by facilitated diffusion or active transport.

Front 7

Cell Wall

Back 7

a rigid layer of polysaccharides lying outside the plasma membrane of the cells of plants, fungi, and bacteria. In the algae and higher plants, it consists mainly of cellulose.

Front 8

Centrioles

Back 8

a minute cylindrical organelle near the nucleus in animal cells, occurring in pairs and involved in the development of spindle fibers in cell division

Front 9

Channel Protein

Back 9

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

Front 10

Chloroplasts

Back 10

(in green plant cells) a plastid that contains chlorophyll and in which photosynthesis takes place

Front 11

Concentration Gradient

Back 11

the process of particles, which are sometimes called solutes, moving through a solution or gas from an area with a higher number of particles to an area with a lower number of particles. The areas are typically separated by a membrane.

Front 12

Cytoplasm

Back 12

the material or protoplasm within a living cell, excluding the nucleus