Cell Membrane and Cell Organelles

The function of the cell membrane is to protect the cell from its surroundings.

The function of the cell wall is to act as a pressure vessel, preventing over-expansion when water enters the cell.

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

Is a cell structure that makes protein.

The function of the nucleus is to maintain the integrity of these genes and to control the activities of the cell by regulating gene expression.

The function of the nuclear envelope is to enclose the nucleus.

A small dense spherical structure in the nucleus of a cell during interphase.

The material of which the chromosomes of organisms other than bacteria are composed.

The function of the endoplasmic reticulum is to fold the protein molecules in sacs called cisternae and the transport of synthesized proteins in vesicles of the Golgi apparatus.

The function of the Golgi apparatus is to modify, sort and packaging of proteins for secretion.

The function of the mitochondria is to produce the energy currency of the cell, ATP, through respiration, and to regulate cellular metabolism.

The function of the chloroplast is to convert light energy of the sun into sugars that can be used by cells.

The function of the vacuole is to contain cellular waste and to isolate materials that may be harmful to the cell.

The function of the lysosome is to remove wastes.

The function of the centriole is to help with cell division in animal cells.

The function of the ATP is to transport work moving substances across cell membranes, also to supply energy needed for muscle contraction.

The process of particles, which are sometimes called solutes, moving through a solution or gas from an area of higher number of particles to an area of lower number of particles.

The condition in which all acting influences are balanced or canceled by equal opposing forces, resulting in a stable system.

A movement of bio chemicals and other atomic or molecular substances across cell membranes without need of energy input.

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

A process by which molecules of a solvent tend to pass through a semipermeable membrane from the less concentrated solution into a more concentrated one, thus equalizing the concentrations on each side of the membrane.

The movement of molecules from high concentration to low concentration.

They exist in the cell membrane and serve as the identifier of the cell.

An intracellular protein or protein fraction having a high specific affinity for binding agents known to stimulate cellular activity, such as a steroid hormone or cyclic AMP.

A protein created by an organism that increases the rate at which chemical reactions occur.

A protein that serves the function of moving other materials within an organism.

Refers to two solutions having the same osmotic pressure across a semipermeable membrane.

Is a particular type of solution that has a greater concentration of solutes on the outside of a cell when compared with the inside of a cell.

Is any solution that has a lower osmotic pressure than another solution.

A protein that transports specific substances through intracellular compartments, into the extracellular fluid, or across the cell membrane.

The taking in of matter by a living cell by invagination of its membrane to form a vacuole.

A process by which the contents of a cell vacuole are released to the exterior through fusion of the vacuole membrane with the cell membrane.