What is a cell ?

Answer 1

It's the basic unit of life.

Answer 2

The cell is the structural and functional unit of all living organisms, and is sometimes called the "building block of life."[1] Some organisms, such as bacteria, are unicellular, consisting of a single cell. Other organisms, such as humans, are multicellular, (humans have an estimated 100 trillion or 1014 cells; a typical cell size is 10 µm, a typical cell mass 1 nanogram). The largest known cell is an ostrich egg.

The cell theory, first developed in 1839 by Schleiden and Schwann, states that all organisms are composed of one or more cells; all cells come from preexisting cells; all vital functions of an organism occur within cells, and cells contain the hereditary information necessary for regulating cell functions and for transmitting information to the next generation of cells.

The word cell comes from the Latin cella, a small room. The name was chosen by Robert Hooke when he compared the cork cells he saw to the small rooms monks lived in.[2]

Answer 3

The cell is the structural and functional unit of all living organisms, and is sometimes called the "building block of life." Some organisms, such as bacteria, are unicellular, consisting of a single cell. Other organisms, such as humans, are multicellular, (humans have an estimated 100 trillion or 1014 cells; a typical cell size is 10 µm, a typical cell mass 1 nanogram). The largest known cell is an ostrich egg.

The cell theory, first developed in 1839 by Schleiden and Schwann, states that all organisms are composed of one or more cells; all cells come from preexisting cells; all vital functions of an organism occur within cells, and cells contain the hereditary information necessary for regulating cell functions and for transmitting information to the next generation of cells.

The word cell comes from the Latin cella, a small room. The name was chosen by Robert Hooke when he compared the cork cells he saw to the small rooms monks lived in

Properties of cells
Each cell is at least somewhat self-contained and self-maintaining: it can take in nutrients, convert these nutrients into energy, carry out specialized functions, and reproduce as necessary. Each cell stores its own set of instructions for carrying out each of these activities.

Mouse cells grown in a culture dish. These cells grow in large clumps, but each individual cell is about 10 micrometres across. All cells share several abilities

Reproduction by cell division (binary fission, mitosis or meiosis).
Use of enzymes and other proteins coded for by DNA genes and made via messenger RNA intermediates and ribosomes.
Metabolism, including taking in raw materials, building cell components, converting energy, molecules and releasing by-products. The functioning of a cell depends upon its ability to extract and use chemical energy stored in organic molecules. This energy is derived from metabolic pathways. Response to external and internal stimuli such as changes in temperature, pH or nutrient levels.

Cell contents are contained within a cell surface membrane that contains proteins and a lipid bilayer.

Some prokaryotic cells contain important internal membrane-bound compartments, but eukaryotic cells have a highly specialized endomembrane system characterized by regulated traffic and transport of vesicles

Answer 4

your an idiot to the first girl that answered. A cell is what supports life. every living thing has cells. some microscopic species are unicellular and bigger organisms are multicelluler.

Answer 5

it is the basic unit of life and the human body is made up of cells

Answer 6

hi,
Why do you ask this question?you can search by yahoo or google,aren't you?
Virus isn't a cell although it has nucleic acid,protein.
Viroid has RNA but it isn't a cell.
Prion has protein but it isn't a cell.
The cell must product ATP,and if put it in invirontment, it can live itself.

Answer 7

the basic unit of an organism

Answer 8

the smallest living organism in your body! where life starts basically

lol some people forgot to look at the category!!!!
check this out for good info: http://en.wikipedia.org/wiki/Cell_(biology)

Answer 9

a place where inmates live

Answer 10

www.google.com
define: cell
voila